This page has only limited features, please log in for full access.

Unclaimed
Haifei Liu
School of Environment, Beijing Normal University, Beijing, 100875, China

Basic Info

Basic Info is private.

Honors and Awards

The user has no records in this section


Career Timeline

The user has no records in this section.


Short Biography

The user biography is not available.
Following
Followers
Co Authors
The list of users this user is following is empty.
Following: 0 users

Feed

Review
Published: 08 April 2021 in Water
Reads 0
Downloads 0

Environmental Hydraulics (EH) is the scientific study of environmental water flows and their related transport and transformation processes in natural water systems. This review provides some remarks about the historical development of EH throughout three different paradigms or ages, namely, the Public Health Age, the Water Quality Age, and finally the Integrated Environmental Hydraulics Age. We further evaluate how EH research has changed in the last 20 years through a bibliometric analysis of the proceedings of the International Symposium on Environmental Hydraulics (ISEH) and Environmental Fluid Mechanics (EFMC) journal articles conducted using Citespace and Leximancer. Authors and affiliations are analyzed to identify patterns of collaboration, followed by an analysis of the temporal evolution of the EFMC impact index as well as its highly-cited articles. Finally, the major EH topics are identified with a comparison between the topics extracted from the two different sources. As the EH field is becoming rapidly global, some topics were confirmed to have attracted more interest in EH such as Flow Condition, Numerical Modelling, Experimental Measurements. It is hoped that our findings could provide a reference for students, academics, and policy-makers related to EH.

ACS Style

Xianglai Zeng; Carlo Gualtieri; Haifei Liu; Dongdong Shao. Environmental Hydraulics in the New Millennium: Historical Evolution and Recent Research Trends. Water 2021, 13, 1021 .

AMA Style

Xianglai Zeng, Carlo Gualtieri, Haifei Liu, Dongdong Shao. Environmental Hydraulics in the New Millennium: Historical Evolution and Recent Research Trends. Water. 2021; 13 (8):1021.

Chicago/Turabian Style

Xianglai Zeng; Carlo Gualtieri; Haifei Liu; Dongdong Shao. 2021. "Environmental Hydraulics in the New Millennium: Historical Evolution and Recent Research Trends." Water 13, no. 8: 1021.

Review
Published: 17 March 2021 in Marine Environmental Research
Reads 0
Downloads 0

As an indispensable part of the marine ecosystem, phytoplankton are important prey for zooplankton and various marine animals with important commercial value. The influence of seawater warming and eutrophication on phytoplankton communities is well known, but few studies have explained the effects of the interaction between temperature and nutrients on marine phytoplankton. Through meta-analysis and meta-regression, the phytoplankton responses to the effects of nutrient addition and seawater warming were evaluated in this study. Nitrogen (N) addition led to an increase in phytoplankton biomass, while phosphorus (P) had no significant effect on phytoplankton biomass. However, this result may be biased by the uneven distribution of the research area. N limitation is widespread in the areas where these collected studies were conducted, including many parts of North and South Atlantic and West Pacific Oceans. The key limiting nutrient in other areas lacking corresponding experiments, however, remain unclear. The effect of seawater warming was not significant, which indicates the uncertainty about the effect of temperature on phytoplankton. The results of ANOVA show that nutrient addition and seawater warming had similar effects in various marine habitats (coastal regions, estuaries and open seas), while salinity could have caused the difference in the N effects among the three habitats. Furthermore, our results showed that the impact of temperature depends on nutrient conditions, especially N status, which has rarely been considered before. This result demonstrated the importance of evaluating nutrient limitation patterns when studying climate warming. The impact of rising temperatures may need to be reevaluated because N limitation is common.

ACS Style

Xuerong Wu; Haifei Liu; Zhiming Ru; Gangqin Tu; Liming Xing; Yu Ding. Meta-analysis of the response of marine phytoplankton to nutrient addition and seawater warming. Marine Environmental Research 2021, 168, 105294 .

AMA Style

Xuerong Wu, Haifei Liu, Zhiming Ru, Gangqin Tu, Liming Xing, Yu Ding. Meta-analysis of the response of marine phytoplankton to nutrient addition and seawater warming. Marine Environmental Research. 2021; 168 ():105294.

Chicago/Turabian Style

Xuerong Wu; Haifei Liu; Zhiming Ru; Gangqin Tu; Liming Xing; Yu Ding. 2021. "Meta-analysis of the response of marine phytoplankton to nutrient addition and seawater warming." Marine Environmental Research 168, no. : 105294.

Journal article
Published: 13 March 2021 in Computer Methods in Applied Mechanics and Engineering
Reads 0
Downloads 0

A well-balanced lattice Boltzmann model for the depth-averaged advection–diffusion equation is developed to solve the solute transport problem in shallow water flows with obvious gradient changes in water depth. The flow field is simulated by the lattice Boltzmann model for shallow water equations with the central moments (CMs) collision operator and D2Q9 lattice pattern. In this model, the diffusion term of the depth-averaged advection–diffusion equation is divided into two parts by the product rule, one part of which is combined into the advection term to produce the pseudo velocity. The relaxation time is independent of the diffusion coefficient, and the remaining value of (3+3)∕6 derived from the Chapmann–Enskog expansion reduces the third-order error. According to the different treatments of the water depth gradient in the equilibrium distribution function, center scheme and linked scheme are developed. Both schemes can ensure the conservation of the solute mass. Numerical tests show that these two schemes give predictions in good agreement, but the linked scheme works better at the breakpoint. Comparisons with the reference indicate that this model is advantageous with respect to both stability and efficiency.

ACS Style

Zhiming Ru; Haifei Liu; Liming Xing; Yu Ding. A well-balanced lattice Boltzmann model for the depth-averaged advection–diffusion equation with variable water depth. Computer Methods in Applied Mechanics and Engineering 2021, 379, 113745 .

AMA Style

Zhiming Ru, Haifei Liu, Liming Xing, Yu Ding. A well-balanced lattice Boltzmann model for the depth-averaged advection–diffusion equation with variable water depth. Computer Methods in Applied Mechanics and Engineering. 2021; 379 ():113745.

Chicago/Turabian Style

Zhiming Ru; Haifei Liu; Liming Xing; Yu Ding. 2021. "A well-balanced lattice Boltzmann model for the depth-averaged advection–diffusion equation with variable water depth." Computer Methods in Applied Mechanics and Engineering 379, no. : 113745.

Journal article
Published: 01 August 2020 in Ocean Engineering
Reads 0
Downloads 0

Flow through and around fishing net cages is an important issue in aquaculture. A three-dimensional multi-relaxation time (MRT) lattice Boltzmann model was used to simulate the flow field around a plane net in a constant current. The model was validated with experimental data. The results show that this numerical model is applicable to and reliable for the investigation of the flow field around a fishing net and can provide the detailed velocity distribution in the net aperture. Based on this model, a series of simulations were carried out to analyze the influences of the net solidity and the current velocity on hydrodynamic characteristics and flow-velocity attenuation. The results indicate that the flow-velocity attenuation is mainly related to the net solidity of the plane net, with a higher velocity drop response related to a higher net solidity. These results provide fundamental information for further studies on the flow field around the fishing net cage, which has potential application in analyzing the impacts of biofouling on fishing nets.

ACS Style

Gangqin Tu; Haifei Liu; Zhiming Ru; Dongdong Shao; Wei Yang; Tao Sun; Hongda Wang; Yuan Gao. Numerical analysis of the flows around fishing plane nets using the lattice Boltzmann method. Ocean Engineering 2020, 214, 107623 .

AMA Style

Gangqin Tu, Haifei Liu, Zhiming Ru, Dongdong Shao, Wei Yang, Tao Sun, Hongda Wang, Yuan Gao. Numerical analysis of the flows around fishing plane nets using the lattice Boltzmann method. Ocean Engineering. 2020; 214 ():107623.

Chicago/Turabian Style

Gangqin Tu; Haifei Liu; Zhiming Ru; Dongdong Shao; Wei Yang; Tao Sun; Hongda Wang; Yuan Gao. 2020. "Numerical analysis of the flows around fishing plane nets using the lattice Boltzmann method." Ocean Engineering 214, no. : 107623.

Editorial
Published: 16 July 2020 in Water
Reads 0
Downloads 0

This Special Issue of Water on “Techniques and Applications in Water Science and Engineering” publishes selected high-quality research papers presented at the Inaugural International Symposium on Water Modelling (iSymWater2019). The symposium was hosted by Beijing Normal University and Manchester Metropolitan University, and took place during 8–10 July 2019 in Beijing, China. A wide range of research topics were considered, including hydraulic modelling, hydro-environment modelling, hydro-ecology modelling, water management simulation, physical experiments, and software. The Issue reports eight papers by researchers from many institutions around the world, and focuses on solving sustainable water challenges through theoretical and physical modelling approaches.

ACS Style

Jian Guo Zhou; Haifei Liu; Alistair Borthwick; Carlo Gualtieri. Techniques and Applications in Water Science and Engineering. Water 2020, 12, 2028 .

AMA Style

Jian Guo Zhou, Haifei Liu, Alistair Borthwick, Carlo Gualtieri. Techniques and Applications in Water Science and Engineering. Water. 2020; 12 (7):2028.

Chicago/Turabian Style

Jian Guo Zhou; Haifei Liu; Alistair Borthwick; Carlo Gualtieri. 2020. "Techniques and Applications in Water Science and Engineering." Water 12, no. 7: 2028.

Research article
Published: 01 July 2020 in Environmental Science and Pollution Research
Reads 0
Downloads 0

A large number of antibiotic residues are discharged into aquatic environments due to the widespread use of antibiotics in daily life. After a series of processes in the water, the residues will potentially have adverse impacts on water ecosystem and human health. Therefore, it is critical for mediating the pollution to know how the antibiotics transport and distribute in the water. This study utilizes a two-dimensional lattice Boltzmann model to find out the transport and distribution of antibiotics in a highly polluted area, the Laizhou Bay in China. Furthermore, the model was used to simulate two scenarios in the Laizhou Bay, the antibiotics from sewage treatment plants and the contamination of mariculture. The simulated results show that the model as an effective tool can provide a useful basis for the management of antibiotics-related environmental issues in the Laizhou Bay.

ACS Style

Liming Xing; Haifei Liu; Jian Guo Zhou. Numerical study of the antibiotic transport and distribution in the Laizhou Bay, China. Environmental Science and Pollution Research 2020, 27, 37760 -37772.

AMA Style

Liming Xing, Haifei Liu, Jian Guo Zhou. Numerical study of the antibiotic transport and distribution in the Laizhou Bay, China. Environmental Science and Pollution Research. 2020; 27 (30):37760-37772.

Chicago/Turabian Style

Liming Xing; Haifei Liu; Jian Guo Zhou. 2020. "Numerical study of the antibiotic transport and distribution in the Laizhou Bay, China." Environmental Science and Pollution Research 27, no. 30: 37760-37772.

Journal article
Published: 16 May 2020 in Journal of Hydrology
Reads 0
Downloads 0

A one-dimensional (1D) and two-dimensional (2D) coupling procedure for solute transport is presented using the lattice Boltzmann method (LBM). It makes use of the advantage of the LBM boundary treatment and avoids the boundary control-volume problems of the traditional computational fluid dynamics (CFD) methods, such as the high order finite difference method (FDM) and the finite volume method (FVM). The proposed coupling scheme only uses the solute particle distributions and kinetic velocities at current time to calculate the missing particle distributions at the boundary lattices. Concentration variables can then be derived from the mesoscopic particle quantities according to the particle group definition equation in the LBM. The calculation is locally dependent and simultaneous, so the coupling scheme can be performed right after the calculation of each single dimensional model. No asynchronous variables are involved and no further lattice is related to the coupling. This can keep the advantage of parallel computation of the LBM and bring the simplicity of the boundary treatment of the LBM to deal with solute transport problems. The model is tested by three benchmarks: point source solute transported in steady flow, diffusion through a square cavity and a sharp curved flow. The results show that the 1D-2D coupling model has a good agreement with the analytical solution in the point source transportation, and is also able to qualitatively approximate the results achieved by a pre-verified full 2D LBM model. It is not only an accurate and efficient coupling scheme, but also a new cross-dimensional coupling method in water quality simulation.

ACS Style

Hongda Wang; Haifei Liu. A mesoscopic coupling scheme for solute transport in surface water using the lattice boltzmann method. Journal of Hydrology 2020, 588, 125062 .

AMA Style

Hongda Wang, Haifei Liu. A mesoscopic coupling scheme for solute transport in surface water using the lattice boltzmann method. Journal of Hydrology. 2020; 588 ():125062.

Chicago/Turabian Style

Hongda Wang; Haifei Liu. 2020. "A mesoscopic coupling scheme for solute transport in surface water using the lattice boltzmann method." Journal of Hydrology 588, no. : 125062.

Technical note
Published: 23 March 2020 in Journal of Hydraulic Research
Reads 0
Downloads 0

The protection of the marine environment is of growing concern, and the development of hydrodynamic models is required to study ocean processes. In this work, a two-dimensional hydrodynamic lattice Boltzmann model was developed to study wave–current coupling problems that combine wave radiation, bed shear stress and wind shear stress. The model is based on nonlinear shallow water equations and two different forms are developed to model wave radiation stress. The first form uses an additional external force term, including a weight factor in the lattice Boltzmann equation at the streaming step. The second form modifies a local equilibrium distribution function at the collision step. Von Neumann stability method is used to study the two schemes. This model was verified by three classic cases: waves diffracted by a straight vertical wall, waves diffracted by two breakwaters, and waves in a circular channel. The numerical results demonstrate the validity of the proposed model, indicating that it can accurately describe the characteristics of water flow with interactions between waves and currents.

ACS Style

Haifei Liu; Liming Xing; Xin Chen. Lattice Boltzmann method for shallow water flow with wave radiation stress. Journal of Hydraulic Research 2020, 59, 166 -175.

AMA Style

Haifei Liu, Liming Xing, Xin Chen. Lattice Boltzmann method for shallow water flow with wave radiation stress. Journal of Hydraulic Research. 2020; 59 (1):166-175.

Chicago/Turabian Style

Haifei Liu; Liming Xing; Xin Chen. 2020. "Lattice Boltzmann method for shallow water flow with wave radiation stress." Journal of Hydraulic Research 59, no. 1: 166-175.

Journal article
Published: 02 December 2019 in Journal of Hydrology
Reads 0
Downloads 0

Hydrological regimes play a vital role in regulating wetland structure and function, regarded as fundamental for wetland protection and restoration. This study explored vegetation response to water-level dynamics, simulated vegetation patterns, and the estimated evapotranspiration (ET) pertaining to different hydrological statuses. We used the vegetation dynamics simulation model and topography- and vegetation-based surface energy partitioning algorithms (TVET model) designed to estimate potential evaporation (PE) and potential transpiration (PT). Results indicated that: (i) Vegetation cover and water levels of different hydrological statuses can be used to deduce suitable water levels during flood, normal, and drought statuses (which were 1.23, 0.99, and 0.81 m, respectively, in the Ertou wetland). (ii) Dynamic vegetation simulations combined with optimal ecological water levels for Phragmites australis and Bolboschoenus planiculmis sustenance can be used to simulate vegetation pattern dynamics. Both P. australis and B. planiculmis expanded during droughts along with a reduction in open water, providing a potential increase in food availability for Siberian crane (Grus leucogeranus). (iii) Changes in vegetation patterns and characteristics (e.g., plant height and leaf area index (LAI)) that varied with water-level fluctuations inevitably altered potential evapotranspiration (PET) partitioning into PE and PT. These results indicate that subtle water-level fluctuations can dramatically alter vegetation patterns, characteristics, and ecological processes, subsequently affecting shallow wetland habitats. Further investigations are necessary to clarify wetland coupling mechanisms between hydrology, vegetation, and habitat. This will help address extreme drought and flooding events while also helping to assess wetland protection and restoration.

ACS Style

Qiang Liu; Jingling Liu; Haifei Liu; Liqiao Liang; Yanpeng Cai; Xuan Wang; Chunhui Li. Vegetation dynamics under water-level fluctuations: Implications for wetland restoration. Journal of Hydrology 2019, 581, 124418 .

AMA Style

Qiang Liu, Jingling Liu, Haifei Liu, Liqiao Liang, Yanpeng Cai, Xuan Wang, Chunhui Li. Vegetation dynamics under water-level fluctuations: Implications for wetland restoration. Journal of Hydrology. 2019; 581 ():124418.

Chicago/Turabian Style

Qiang Liu; Jingling Liu; Haifei Liu; Liqiao Liang; Yanpeng Cai; Xuan Wang; Chunhui Li. 2019. "Vegetation dynamics under water-level fluctuations: Implications for wetland restoration." Journal of Hydrology 581, no. : 124418.

Journal article
Published: 27 October 2019 in Water
Reads 0
Downloads 0

Microplastic particles are easily captured by microorganisms and enter the food chain, which poses a threat to ecological health. These particles are abundant in coastal areas because of the influence of anthropic activities and the interaction between the sea and land. Although much research on microplastics has been done, predicting the transportation of microplastic particles in coastal zones is still a challenge. In this paper, the trajectories of microplastic particles released from four river mouths around Laizhou Bay are investigated using the lattice Boltzmann method coupled with the Lagrangian particle-tracking method, involving inter-particle and particle-wall collisions. The trajectories of particles released from four river mouths are recorded within 30 days.

ACS Style

Yu Ding; Haifei Liu; Wei Yang. Numerical Prediction of the Short-Term Trajectory of Microplastic Particles in Laizhou Bay. Water 2019, 11, 2251 .

AMA Style

Yu Ding, Haifei Liu, Wei Yang. Numerical Prediction of the Short-Term Trajectory of Microplastic Particles in Laizhou Bay. Water. 2019; 11 (11):2251.

Chicago/Turabian Style

Yu Ding; Haifei Liu; Wei Yang. 2019. "Numerical Prediction of the Short-Term Trajectory of Microplastic Particles in Laizhou Bay." Water 11, no. 11: 2251.

Journal article
Published: 17 October 2019 in Computer Methods in Applied Mechanics and Engineering
Reads 0
Downloads 0

Using a novel particle coupling method (PCM), the one-dimensional (1D) and two-dimensional (2D) hydrodynamic lattice Boltzmann models (LBM) are coupled at the mesoscopic level. The kinetic vector of particles at coupling boundary lattices is calculated according to kinetic particle velocity and particle distributions of both models at certain directions. Taking advantage of the coupling boundary treatment, the fluid continuity and momentum conservation are satisfied. Using the PCM, the coupled numerical model is accurate at both microscopic and macroscopic levels, achieving better efficiency performance compared to the full 2D LBM model. Furthermore, the derived equations mathematically illustrate the interaction mechanism of cross-dimensional shallow water modeling.

ACS Style

Hongda Wang; Haifei Liu. Cross-dimensional modeling of shallow water flow. Computer Methods in Applied Mechanics and Engineering 2019, 360, 112686 .

AMA Style

Hongda Wang, Haifei Liu. Cross-dimensional modeling of shallow water flow. Computer Methods in Applied Mechanics and Engineering. 2019; 360 ():112686.

Chicago/Turabian Style

Hongda Wang; Haifei Liu. 2019. "Cross-dimensional modeling of shallow water flow." Computer Methods in Applied Mechanics and Engineering 360, no. : 112686.

Journal article
Published: 02 October 2019 in Water
Reads 0
Downloads 0

Antibiotics are extensively applied in aquaculture for the treatment of microbial infections and to improve production. Among various antibiotics, sulfonamides (SA) are popular in fish farming, and SA residues in the aquatic environment have detrimental effects on both ecosystem and human health. Understanding the fate of SA in the aquatic environment is a basic necessity to provide an approach for solving the current problem. In this study, a two-dimensional lattice Boltzmann model was introduced to investigate the transport and occurrence of SA in Laizhou Bay, a prosperous aquaculture area in China. The model is based on the shallow-water equations and advection-diffusion equation with the Bhatnagaar–Gross–Krook scheme. Experimental data are used to verify the model after numerical simulations and the results illustrate the accuracy of the proposed model. This model provides a potential universal method for the simulation of the fate of antibiotics in the aquatic environment.

ACS Style

Liming Xing; Haifei Liu; Wenxian Guo; Yu Ding; Zhiming Ru; Gangqin Tu; Xuerong Wu. Numerical Study of Sulfonamide Occurrence and Transport at the Near-Shore Area of Laizhou Bay. Water 2019, 11, 2065 .

AMA Style

Liming Xing, Haifei Liu, Wenxian Guo, Yu Ding, Zhiming Ru, Gangqin Tu, Xuerong Wu. Numerical Study of Sulfonamide Occurrence and Transport at the Near-Shore Area of Laizhou Bay. Water. 2019; 11 (10):2065.

Chicago/Turabian Style

Liming Xing; Haifei Liu; Wenxian Guo; Yu Ding; Zhiming Ru; Gangqin Tu; Xuerong Wu. 2019. "Numerical Study of Sulfonamide Occurrence and Transport at the Near-Shore Area of Laizhou Bay." Water 11, no. 10: 2065.

Journal article
Published: 01 June 2019 in Journal of Hydro-environment Research
Reads 0
Downloads 0

Ecological water replenishment is an effective approach to the wetlands suffering water shortage. However, optimizing the replenishment is a tough problem, considering local flow pattern, water exchange and environmental crisis. Therefore, determining the inlet position and the flow rate of water diversion remains an interesting and important topic. This study developed an applicable and reliable method to identify the preferable inlet location and inflow rates of the transferred water, which considers the influence of the factors on environmental risks in receiving water bodies based on numerical results using the lattice Boltzmann method (LBM) in both Lagrangian and Eulerian frameworks. An environmental risk assessment system with comprehensive utilization of water age was established. The Water Transfer Project for the Baiyangdian Lake from the Yellow River is a representative and well-known water replenishment event in China, which served as a case study. The results show that under the static and NNE wind conditions, the north open inlet is a suitable inlet position, while the south one is preferable under the SSW wind condition. Considering the environmental risk of the water transfer, it indicates that higher inflow rate would bring less environmental risk generally and the optimal inflow rate is 20 m3/s, regardless of the wind conditions and the inlet position. The methods aforementioned played a vital role in optimizing the inlet position of water delivery and selecting the optimal plan of the recharge rate. It could provide a useful reference for ecological restoration and a guarantee for sustainable development of wetlands.

ACS Style

Yu Ding; Haifei Liu; Wei Yang; Liming Xing; Gangqin Tu; Zhiming Ru; Zhihao Xu. The assessment of ecological water replenishment scheme based on the two-dimensional lattice-Boltzmann water age theory. Journal of Hydro-environment Research 2019, 25, 25 -34.

AMA Style

Yu Ding, Haifei Liu, Wei Yang, Liming Xing, Gangqin Tu, Zhiming Ru, Zhihao Xu. The assessment of ecological water replenishment scheme based on the two-dimensional lattice-Boltzmann water age theory. Journal of Hydro-environment Research. 2019; 25 ():25-34.

Chicago/Turabian Style

Yu Ding; Haifei Liu; Wei Yang; Liming Xing; Gangqin Tu; Zhiming Ru; Zhihao Xu. 2019. "The assessment of ecological water replenishment scheme based on the two-dimensional lattice-Boltzmann water age theory." Journal of Hydro-environment Research 25, no. : 25-34.

Journal article
Published: 16 January 2019 in Water
Reads 0
Downloads 0

Wetland acts as an important part of climatic regulation, water purification, and biodiversity maintenance. As an integral part of wetlands, large shallow lakes play an essential role in protecting ecosystem diversity and providing water sources. Baihe Lake in the Momoge Wetland is one such example, so it is necessary to study the flow pattern characteristics of this lake under different conditions. A new model, based on the lattice Boltzmann method, was used to investigate the effects of different impact factors on flow fields, such as water discharge from surrounding farmland, rainfall, wind speed, and aquatic vegetation. Importantly, this study provides a hydrodynamic basis for local ecological protection and restoration work.

ACS Style

Haifei Liu; Zhexian Zhu; Jingling Liu; Qiang Liu. Numerical Analysis of the Impact Factors on the Flow Fields in a Large Shallow Lake. Water 2019, 11, 155 .

AMA Style

Haifei Liu, Zhexian Zhu, Jingling Liu, Qiang Liu. Numerical Analysis of the Impact Factors on the Flow Fields in a Large Shallow Lake. Water. 2019; 11 (1):155.

Chicago/Turabian Style

Haifei Liu; Zhexian Zhu; Jingling Liu; Qiang Liu. 2019. "Numerical Analysis of the Impact Factors on the Flow Fields in a Large Shallow Lake." Water 11, no. 1: 155.

Conference paper
Published: 17 September 2018 in MATEC Web of Conferences
Reads 0
Downloads 0

Wetland is a multifunctional and biodiversity ecosystem on the earth, and it is also one of the most important living environments for human beings. Large shallow lakes play an important role in providing water and maintaining ecosystem diversity in wetlands. Vegetation growing in lakes and could affect the water flow by drag force. In the paper, a two-dimensional hydrodynamic model is developed and is applied to a large shallow lake, Baihe Lake in North China and the lattice Boltzmann method is selected as the simulation approach. The water velocity field of the lake is produced by the model and the distribution of the study area is investigated. Then, the hydrodynamic characteristics of lakes under different vegetation density are studied to find its influence on the water flow. This study provides a theoretical basis through a numerical tool for the administration of local hydraulic and ecological engineering.

ACS Style

Zhexian Zhu; Haifei Liu. Numerical Study of the Flow Fields in the Vegetated Baihe Lake. MATEC Web of Conferences 2018, 203, 07007 .

AMA Style

Zhexian Zhu, Haifei Liu. Numerical Study of the Flow Fields in the Vegetated Baihe Lake. MATEC Web of Conferences. 2018; 203 ():07007.

Chicago/Turabian Style

Zhexian Zhu; Haifei Liu. 2018. "Numerical Study of the Flow Fields in the Vegetated Baihe Lake." MATEC Web of Conferences 203, no. : 07007.

Journal article
Published: 01 July 2018 in Journal of Hydrology
Reads 0
Downloads 0

Complex rainfall situations can generate overland flow with complex hydrodynamic characteristics, affecting the surface configuration (i.e. sheet erosion) and environment to varying degrees. Reliable numerical simulations can provide a scientific method for the optimization of environmental management. A mesoscopic numerical method, the lattice Boltzmann method, was employed to simulate overland flows. To deal with complex rainfall, two schemes were introduced to improve the lattice Boltzmann equation and the local equilibrium function, respectively. Four typical cases with differences in rainfall, bed roughness, and slopes were selected to test the accuracy and applicability of the proposed schemes. It was found that the simulated results were in good agreement with the experimental data, analytical values, and the results produced by other models.

ACS Style

Yu Ding; Haifei Liu; Yong Peng; Liming Xing. Lattice Boltzmann method for rain-induced overland flow. Journal of Hydrology 2018, 562, 789 -795.

AMA Style

Yu Ding, Haifei Liu, Yong Peng, Liming Xing. Lattice Boltzmann method for rain-induced overland flow. Journal of Hydrology. 2018; 562 ():789-795.

Chicago/Turabian Style

Yu Ding; Haifei Liu; Yong Peng; Liming Xing. 2018. "Lattice Boltzmann method for rain-induced overland flow." Journal of Hydrology 562, no. : 789-795.

Editorial
Published: 15 May 2018 in Mathematical Problems in Engineering
Reads 0
Downloads 0
ACS Style

Jian G. Zhou; Alistair Borthwick; Haifei Liu; Ling Qian. Advances in Numerical Techniques for Modelling Water Flows. Mathematical Problems in Engineering 2018, 2018, 1 -2.

AMA Style

Jian G. Zhou, Alistair Borthwick, Haifei Liu, Ling Qian. Advances in Numerical Techniques for Modelling Water Flows. Mathematical Problems in Engineering. 2018; 2018 ():1-2.

Chicago/Turabian Style

Jian G. Zhou; Alistair Borthwick; Haifei Liu; Ling Qian. 2018. "Advances in Numerical Techniques for Modelling Water Flows." Mathematical Problems in Engineering 2018, no. : 1-2.

Research article
Published: 15 February 2018 in Mathematical Problems in Engineering
Reads 0
Downloads 0

Flow around cylinders is a classic issue of fluid mechanics and it has great significance in engineering fields. In this study, a two-dimensional hydrodynamic lattice Boltzmann numerical model is proposed, coupling wave radiation stress, bed shear stress, and wind shear stress, which is able to simulate wave propagation of flow around cylinders. It is based on shallow water equations and a weight factor is applied for the force term. An enhanced equilibrium Bhatnagar-Gross-Krook (BGK) scheme is developed to treat the wave radiation stress term in collision step. This model is tested and verified by two cases: the first case is the flow around a single circular cylinder, where the flow is driven by current, wave, or both wave and current, respectively, and the second case is the solitary waves moving around cylinders. The results illustrate the correctness of this model, which could be used to analyze the detailed flow pattern around a cylinder.

ACS Style

Liming Xing; Haifei Liu; Yu Ding; Wei Huang. Numerical Modeling of Wave-Current Flow around Cylinders Using an Enhanced Equilibrium Bhatnagar-Gross-Krook Scheme. Mathematical Problems in Engineering 2018, 2018, 1 -9.

AMA Style

Liming Xing, Haifei Liu, Yu Ding, Wei Huang. Numerical Modeling of Wave-Current Flow around Cylinders Using an Enhanced Equilibrium Bhatnagar-Gross-Krook Scheme. Mathematical Problems in Engineering. 2018; 2018 ():1-9.

Chicago/Turabian Style

Liming Xing; Haifei Liu; Yu Ding; Wei Huang. 2018. "Numerical Modeling of Wave-Current Flow around Cylinders Using an Enhanced Equilibrium Bhatnagar-Gross-Krook Scheme." Mathematical Problems in Engineering 2018, no. : 1-9.

Journal article
Published: 01 February 2018 in Journal of Cleaner Production
Reads 0
Downloads 0
ACS Style

Caihong Tang; Yujun Yi; Zhifeng Yang; Shanghong Zhang; Haifei Liu. Effects of ecological flow release patterns on water quality and ecological restoration of a large shallow lake. Journal of Cleaner Production 2018, 174, 577 -590.

AMA Style

Caihong Tang, Yujun Yi, Zhifeng Yang, Shanghong Zhang, Haifei Liu. Effects of ecological flow release patterns on water quality and ecological restoration of a large shallow lake. Journal of Cleaner Production. 2018; 174 ():577-590.

Chicago/Turabian Style

Caihong Tang; Yujun Yi; Zhifeng Yang; Shanghong Zhang; Haifei Liu. 2018. "Effects of ecological flow release patterns on water quality and ecological restoration of a large shallow lake." Journal of Cleaner Production 174, no. : 577-590.

Journal article
Published: 01 February 2018 in International Journal of Modern Physics C
Reads 0
Downloads 0

The age of tracer is a spatio-temporal scale, indicating the transition time of solute particles, which is helpful to monitor and manage the pollutant leakage accidents. In this study, an effective Lagrangian model for the age of tracer is developed based on the lattice Boltzmann method in [Formula: see text]5 lattices. A tracer age problem in an asymmetrical circular reservoir is then employed as a benchmark test to verify this method. Then it is applied to computing the age of tracers under two different reservoir operation schemes in the Danjiangkou Reservoir, the drinking water source for the Middle Route of South-to-North Water Transfer Project.

ACS Style

Yu Ding; Haifei Liu; Yujun Yi. A Lagrangian model for the age of tracer in surface water. International Journal of Modern Physics C 2018, 29, 1 .

AMA Style

Yu Ding, Haifei Liu, Yujun Yi. A Lagrangian model for the age of tracer in surface water. International Journal of Modern Physics C. 2018; 29 (2):1.

Chicago/Turabian Style

Yu Ding; Haifei Liu; Yujun Yi. 2018. "A Lagrangian model for the age of tracer in surface water." International Journal of Modern Physics C 29, no. 2: 1.