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Building Science. 2021, (10) Core

Fast Unsteady Simulation of Outdoor Wind Turbulence Flow Based on LBM-LESChinese Full TextEnglish Full Text (MT)

HAN Mengtao;School of Architecture and Urban Planning,Huazhong University of Science and Technology;

Abstract: The lattice Boltzmann method-based LES（ LBM-LES）,a new fluid simulation method,features the advantages of simpler algorithms and more significant computational speed compared to the finite volume methodbased large-eddy simulation（ FVM-LES）; and therefore arouses wide attention in unsteady flow simulation.However,LBM-LES requires finer grids to achieve the same simulation accuracy as FVM-LES is due to the defects of Bounce-Back,LBM’s default wall boundary. This study introduces a new wall boundar... More
Keywords：

lattice Boltzmann method; large-eddy simulation; wall boundary model; outdoor flow; computational speed;

  • DOI：

    10.13614/j.cnki.11-1962/tu.2021.10.27

  • Series：

    (C) Architecture/ Energy/ Traffic/ Electromechanics, etc

  • Subject：

    Architecture and Engineering

  • Classification Code：

    TU973.213

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