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Shiyang Li
Key Laboratory of Thermo-Fluid Science and Engineering, Ministry of Education, School of Energy and Power Engineering, Xi’an Jiaotong University, Xi’an 710049, China

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Journal article
Published: 15 April 2018 in Energies
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Packed beds are widely used in catalytic reactors or nuclear reactors. Reducing the pressure drop and improving the heat transfer performance of a packed bed is a common research aim. The dimpled structure has a complex influence on the flow and heat transfer characteristics. In the present study, the flow and heat transfer characteristics in structured packed beds with smooth or dimpled spheres are numerically investigated, where two different low channel to particle diameter ratios (N = 1.00 and N = 1.15) are considered. The pressure drop and the Nusselt number are obtained. The results show that, for N = 1.00, compared with the structured packed bed with smooth spheres, the structured packed bed with dimpled spheres has a lower pressure drop and little higher Nusselt number at 1500 < ReH < 14,000, exhibiting an improved overall heat transfer performance. However, for N = 1.15, the structured packed bed with dimpled spheres shows a much higher pressure drop, which dominantly affects the overall heat transfer performance, causing it to be weaker. Comparing the different channel to particle diameter ratios, we find that different configurations can result in: (i) completely different drag reduction effect; and (ii) relatively less influence on heat transfer enhancement.

ACS Style

Shiyang Li; Lang Zhou; Jian Yang; Qiuwang Wang. Numerical Simulation of Flow and Heat Transfer in Structured Packed Beds with Smooth or Dimpled Spheres at Low Channel to Particle Diameter Ratio. Energies 2018, 11, 937 .

AMA Style

Shiyang Li, Lang Zhou, Jian Yang, Qiuwang Wang. Numerical Simulation of Flow and Heat Transfer in Structured Packed Beds with Smooth or Dimpled Spheres at Low Channel to Particle Diameter Ratio. Energies. 2018; 11 (4):937.

Chicago/Turabian Style

Shiyang Li; Lang Zhou; Jian Yang; Qiuwang Wang. 2018. "Numerical Simulation of Flow and Heat Transfer in Structured Packed Beds with Smooth or Dimpled Spheres at Low Channel to Particle Diameter Ratio." Energies 11, no. 4: 937.

Journal article
Published: 01 December 2017 in Energy
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ACS Style

Yan Liu; Liu Yang; Liqiang Hou; Shiyang Li; Jian Yang; Qiuwang Wang. A porous building approach for modelling flow and heat transfer around and inside an isolated building on night ventilation and thermal mass. Energy 2017, 141, 1914 -1927.

AMA Style

Yan Liu, Liu Yang, Liqiang Hou, Shiyang Li, Jian Yang, Qiuwang Wang. A porous building approach for modelling flow and heat transfer around and inside an isolated building on night ventilation and thermal mass. Energy. 2017; 141 ():1914-1927.

Chicago/Turabian Style

Yan Liu; Liu Yang; Liqiang Hou; Shiyang Li; Jian Yang; Qiuwang Wang. 2017. "A porous building approach for modelling flow and heat transfer around and inside an isolated building on night ventilation and thermal mass." Energy 141, no. : 1914-1927.

Journal article
Published: 01 July 2017 in Applied Thermal Engineering
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ACS Style

Shiyang Li; Jian Yang; Qiuwang Wang. Large eddy simulation of flow and heat transfer past two side-by-side spheres. Applied Thermal Engineering 2017, 121, 810 -819.

AMA Style

Shiyang Li, Jian Yang, Qiuwang Wang. Large eddy simulation of flow and heat transfer past two side-by-side spheres. Applied Thermal Engineering. 2017; 121 ():810-819.

Chicago/Turabian Style

Shiyang Li; Jian Yang; Qiuwang Wang. 2017. "Large eddy simulation of flow and heat transfer past two side-by-side spheres." Applied Thermal Engineering 121, no. : 810-819.