Simulation of nanofluid natural convection based on single-particle hydrodynamics in energy-conserving dissipative particle dynamics(eDPD)

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外文摘要：In the present study,the nanofliud natural convection is investigated by the energy-conserving dissipative particle dynamics(eDPD)method,where the nanoparticles are considered at the single-particle level.The thermal expansion coefficient β and the viscosity μ of the simulated system containing nanoparticles are calculated and found to be in close alignment with the previous simulation results.The single-particle hy-drodynamics in eDPD enables simulations of nanofluid natural convection with higher Rayleigh numbers and greater nanoparticle volume fractions.Additionally,this approach is utilized to simulate the nanoparticle distribution during the enhanced heat transfer process in the nanofluid natural convection.The localized aggregation of nanoparticles enhances the heat transfer performance of the nanofluid under specific Rayleigh numbers and nanoparticles volume fractions.

外文关键词：

single-particle hydrodynamicsenergy-conserving dissipative particle dy-namics(eDPD)nanoparticlenanofluidheat transfer

作者：

Wei LU、Shuo CHEN、Zhiyuan YU、Jiayi ZHAO

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作者单位：

School of Aerospace Engineering and Applied Mechanics,Tongji University,Shanghai 200092,China

Shanghai Key Laboratory of Vehicle Aerodynamics and Vehicle Thermal Management Systems,Tongji University,Shanghai 201804,China

School of Energy and Power Engineering,University of Shanghai for Science and Technology,Shanghai 200093,China

基金：

National Natural Science Foundation of ChinaNational Natural Science Foundation of ChinaSailing Program of Shanghai,China

项目编号：

Nos.118722832002212No.20YF1432800

出版年：

2024

DOI：

10.1007/s10483-024-3130-9

应用数学和力学(英文版)

上海大学

应用数学和力学(英文版)

影响因子：0.294

ISSN：0253-4827

年,卷(期)：2024.45(8)