Particle flow simulations with homogenised lattice Boltzmann methods
Particle flow simulations with homogenised lattice Boltzmann methods作者机构：Institute for Applied and Numerical Mathematics Karlsruhe Institute of Technology 76021 Karlsruhe Germany Institute for Mechanical Process Engineering and Mechanics Karlsruhe Institute of Technology 76021 Karlsruhe Germany
出 版 物：《Particuology》 (颗粒学报（英文版）)
年 卷 期：2017年第15卷第5期
页 面：1-13页
核心收录：
学科分类：080704[工学-流体机械及工程] 080103[工学-流体力学] 081401[工学-岩土工程] 08[工学] 0807[工学-动力工程及工程热物理] 0814[工学-土木工程] 0801[工学-力学（可授工学、理学学位）]
主 题：Particulate flow simulationsArbitrarily shaped particlesLattice Boltzmann methodsValidationSedimentation processes
摘 要：An alternative approach to simulating arbitrarily shaped particles submersed in viscous fluid in two dimensions is proposed, obtained by adapting the velocity parameter of the equilibrium distribution function of a standard lattice Boltzmann method （LBM）. Comparisons of exemplifying simulations to results in the literature validate the approach as well as the convergence analysis. Pressure fluctuations occurring in Ladd＇s approach are greatly reduced. In comparison with the immersed boundary method, this approach does not require cost intensive interpolations. The parallel efficiency of LBM is retained. An intrinsic momentum transfer is observed during particle-particle collisions. To demonstrate the capa- bilities of the approach, sedimentation of particles of several shapes is simulated despite omitting an explicit particle collision model.
维普期刊数据库