On the thermal boundary conditions of particulate-fluid modeling

被引：6

作者：

Zhang, Hao ^{[1
]}

Shao, Yingjuan ^{[1
]}

Li, Kaixi ^{[2
]}

Hu, Yang ^{[3
]}

机构：

[1] Southeast Univ, Key Lab Energy Thermal Convers & Control, Minist Educ, Sch Energy & Environm, Nanjing 210096, Jiangsu, Peoples R China

[2] Chinese Acad Sci, Inst Coal Chem, Taiyuan 030001, Peoples R China

[3] Beijing Jiaotong Univ, Sch Mech Elect & Control Engn, Beijing 100044, Peoples R China

来源：

POWDER TECHNOLOGY | 2017年 / 314卷

基金：

中国博士后科学基金;

关键词：

Lattice Boltzmann method; Immersed boundary method; Discrete element method; Dirichlet boundary condition; Neumann boundary condition; LATTICE BOLTZMANN METHOD; DIRECT NUMERICAL-SIMULATION; IMMERSED-BOUNDARY; HEAT-TRANSFER; HORIZONTAL ANNULUS; NATURAL-CONVECTION; PARTICLE-SCALE; FLOWS;

D O I：

10.1016/j.powtec.2016.08.038

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Sedimentation processes of solid particles in a fluid with heat transfer are simulated using a coupled Lattice Boltzmann Method, Immersed Boundary Method and Discrete Element Method (LBM-IBM-DEM) scheme. In the numerical simulations, solid particles are specified either by a given temperature which is termed Dirichlet boundary condition or by a temperature gradient which is termed Neumann boundary condition. Several cases are examined containing one, two and 504 solid particles settling in a fluid, respectively. All the considered cases could be divided into two groups: Group Dirichlet and Group Neumann according to different styles of boundary conditions employed but under exactly the same initial states. The effects of these two boundary conditions on the partide behavior are quantized. (C) 2016 Elsevier B.V. All rights reserved.

引用

页码：315 / 327

页数：13

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