Asad Islam

Dr. Asad Islam

Beihang University
orcid

Research Focus & Metrics

Academic Career Length

8Years (2019-Present)

(Calculated once Scilit publication data is synced: current year − year of first publication + 1)

Representative Publications

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11 February 2021 in International Journal of Numerical Methods for Heat & Fluid Flow
Verified
Journal Article
Closed access
MNMuhammad Nadeem
Muhammad Nadeem
JHJi-Huan He
Ji-Huan He
AIAsad Islam
Asad Islam
Purpose: This study aims that very lately, Mohand transform is introduced to solve the ordinary and partial differential equations (PDEs). In this paper, the authors modify this transformation and associate it with a further analytical method called homotopy perturbation method (HPM) for the fractional view of Newell–Whitehead–Segel equation (NWSE). As Mohand transform is restricted to linear obstacles only, as a consequence, HPM is used to crack the nonlinear terms arising in the illustrated problems. The fractional derivatives are taken into the Caputo sense. Design/methodology/approach: The specific objective of this study is to examine the problem which performs an efficient role in the form of stripe orders of two dimensional systems. The authors achieve the multiple behaviors and properties of fractional NWSE with different positive integers. Findings: The main finding of this paper is to analyze the fractional view of NWSE. The obtain results perform very good in agreement with exact solution. The authors show that this strategy is absolutely very easy and smooth and have no assumption for the constriction of this approach. Research limitations/implications: This paper invokes these two main inspirations: first, Mohand transform is associated with HPM, secondly, fractional view of NWSE with different positive integers. Practical implications: In this paper, the graph of approximate solution has the excellent promise with the graphs of exact solutions. Social implications: This paper presents valuable technique for handling the fractional PDEs without involving any restrictions or hypothesis. Originality/value: The authors discuss the fractional view of NWSE by a Mohand transform. The work of the present paper is original and advanced. Significantly, to the best of the authors’ knowledge, no such work has yet been published in the literature.

20 April 2021 in Applied Sciences
Verified
Journal Article
Open access
PDF file
Muhammad Umer SohailMuhammad Umer Sohail
Muhammad Umer Sohail
HHHossein Raza Hamdani
Hossein Raza Hamdani
AIAsad Islam
Asad Islam
KPKhalid Parvez
Khalid Parvez
AKAbdul Munem Khan
Abdul Munem Khan
Hassan ElahiHassan Elahi
Hassan Elahi
Non-uniform inlet flows frequently occur in aircrafts and result in chronological distortions of total temperature and total pressure at the engine inlet. Distorted inlet flow operation of the axial compressor deteriorates aerodynamic performance, which reduces the stall margin and increases blade stress levels, which in turn causes compressor failure. Deep learning is an efficient approach to predict catastrophic compressor failure, and its stability for better performance at minimum computational cost and time. The current research focuses on the development of a transonic compressor instability prediction tool for the comprehensive modeling of axial compressor dynamics. A novel predictive approach founded by an extensive CFD-based dataset for supervised learning has been implemented to predict compressor performance and behavior at different ambient temperatures and flow conditions. Artificial Neural Network-based results accurately predict compressor performance parameters by minimizing the Root Mean Square Error (RMSE) loss function. Computational results show that, as compared to the tip radial pressure distortion, hub radial pressure distortion has improved the stability range of the compressor. Furthermore, the combined effect of pressure distortion with the bulk flow has a qualitative and deteriorator effect on the compressor.

24 June 2021 in Fractals
Verified
Journal Article
Closed access
PDF file
SHSiddra Habib
Siddra Habib
ABAmreen Batool
Amreen Batool
AIAsad Islam
Asad Islam
MNMuhammad Nadeem
Muhammad Nadeem
KGKhaled A. Gepreel
Khaled A. Gepreel
Ji-Huan HeJi-Huan He
Ji-Huan He

9 April 2021 in GEM - International Journal on Geomathematics
Verified
Journal Article
Closed access
PDF file
SHSiddra Habib
Siddra Habib
AIAsad Islam
Asad Islam
ABAmreen Batool
Amreen Batool
MSMuhammad Umer Sohail
Muhammad Umer Sohail
MNMuhammad Nadeem
Muhammad Nadeem

6 July 2023 in Symmetry
Verified
Journal Article
Open access
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MNMuhammad Nadeem
Muhammad Nadeem
AIAsad Islam
Asad Islam
SKShazia Karim
Shazia Karim
SMSorin Nicolae Muresan
Sorin Nicolae Muresan
Loredana Florentina IamborLoredana Florentina Iambor
Loredana Florentina Iambor
In nature, symmetry is all around us. The symmetry framework represents integer partial differential equations and their fractional order in the sense of Caputo derivatives. This article suggests a semi-analytical approach based on Aboodh transform (AT) and the homotopy perturbation scheme (HPS) for achieving the approximate solution of time-fractional porous media and heat transfer equations. The AT converts the fractional problems into simple ones and obtains the recurrence relation without any discretization or assumption. This nonlinear recurrence relation can be decomposed via the use of the HPS to obtain the iterations in terms of series solutions. The initial conditions play an important role in determining the successive iterations and yields towards the exact solution. We provide some numerical applications to analyze the accuracy of this proposed scheme and show that the performance of our scheme has strong agreement with the exact results.

25 January 2021 in PLOS ONE
Verified
Journal Article
Open access
PDF file
AIAsad Islam
Asad Islam
HMHongwei Ma
Hongwei Ma
The paper shows the effect of the probe on the performance of a transonic axial speed compressor. The unobstructed flow case with the experimental data was validated and used as a guide for all subsequent study cases. The aerodynamic performance for different probe parameters were calculated numerically using ANSYS-CFX. This covered the results on compressor output from changing probe axial positions, the radial immersion depths, the size of the probe, and the total number of probes. The findings were evaluated in relation to the total pressure ratio, performance, margin of deflation and stability. The velocity part distributions further showed that the probe block and raises the flow Mach value, which is the explanation why the compressor rotor’s total pressure ratio is lost. In fact, the parameters of the sample will significantly influence the calculation outcomes and affect the standard margin. The range of stability was also affected, which changes the performance trend from the choke to the stall. Consequently, the collection of correct probe parameters with fewer impact on compressor output is addressed.