A Variational Multiscale Method for Particle Dispersion Modeling in the Atmosphere

作     者：Y.Nishio B.Janssens K.Limam J.van Beeck 

作者机构：Royal Military Academy(RMA)Brussels1000Belgium Universite de La Rochelle(ULR)La Rochelle17000France Von Karman Institute for Fluid Dynamics(VKI)Sint-Genesius-Rode1640Belgium 

出 版 物：《Fluid Dynamics & Materials Processing》 (流体力学与材料加工（英文）)

年 卷 期：2023年第19卷第3期

页      面：743-753页

核心收录：

学科分类：07[理学] 070602[理学-大气物理学与大气环境] 0706[理学-大气科学] 0701[理学-数学] 0812[工学-计算机科学与技术（可授工学、理学学位）] 

基　　金：The authors received the funding of the Royal Higher Institute for Defence(MSP16-06) 

主　　题：ABL(Atmospheric boundary layer) CFD FEM LES SUPG(Streamline upwind petrov–Galerkin) Turbulent flow VMS(Variational MultiScale method) 

摘      要：A LES model is proposed to predict the dispersion of particles in the atmosphere in the context of Chemical,Biological,Radiological and Nuclear(CBRN)*** code relies on the Finite Element Method(FEM)for both the fluid and the dispersed solid *** from the Navier-Stokes equations and a general description of the FEM strategy,the Streamline Upwind Petrov-Galerkin(SUPG)method is formulated putting some emphasis on the related assembly matrix and stabilization ***,the Variational Multiscale Method(VMS)is presented together with a detailed illustration of its algorithm and hierarchy of computational *** is demonstrated that the VMS can be considered as a more general version of the SUPG *** final part of the work is used to assess the reliability of the implemented predictor/multicorrector solution strategy.