三维颗粒群沉降的格子Boltzmann模拟

doi:10.7523/j.issn.2095-6134.2016.02.015

中国科学院大学学报 ›› 2016, Vol. 33 ›› Issue (2): 240-246.DOI: 10.7523/j.issn.2095-6134.2016.02.015

• 中国工程热物理学会2014年多相流年会专栏 • 上一篇下一篇

三维颗粒群沉降的格子Boltzmann模拟

查露, 栗晶, 曹传胜, 黄议, 朱合华, 柳朝晖, 郑楚光

华中科技大学煤燃烧国家重点实验室, 武汉 430074

收稿日期:2015-03-13 修回日期:2015-07-07 发布日期:2016-03-15
通讯作者: 栗晶
基金资助:
国家自然科学基金(51306065,51390494,51276076)和煤燃烧国家重点实验室自主研发基金(FSKLCCB1409)资助

Lattice Boltzmann simulation of three-dimensional particle group settlement

ZHA Lu, LI Jing, CAO Chuansheng, HUANG Yi, ZHU Hehua, LIU Zhaohui, ZHENG Chuguang

State key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China

Received:2015-03-13 Revised:2015-07-07 Published:2016-03-15

摘要/Abstract

摘要：

颗粒悬浮运动研究一直是多相流领域中的热点和难点问题,而格子Boltzmann(LB)方法是一种天然并行、易于处理复杂边界的介观方法.本文采用LB-EBF方法对三维悬浮颗粒群进行全解析直接数值模拟,详细分析了1 152颗粒(1 000数量级)的沉降规律,具体分为3个方面:三维多颗粒沉降速度及统计量分析,三维多颗粒沉降位置及统计量分析,三维多颗粒沉降颗粒流场相互作用分析.

关键词: 颗粒群沉降, 格子Boltzmann方法, 统计分析, 相互作用

Abstract:

The motion of particle group has been a hot and difficult problem in the field of multiphase flow, and lattice Boltzmann (LB) method is a natural parallel mesoscopic method which is apt to handle complex boundaries. In this work, LB-EBF method is used for simulation of three-dimensional particle group settlement, and we give detailed analyses of the settlement laws of 1 152 particles in three aspects: velocity analysis and statistics analysis of three-dimensional multi-particle sedimentation, position analysis and statistics analysis of three-dimensional multi-particle sedimentation, and analysis of the interaction between particle group and flow field in the sedimentation.

Key words: particle group settlement, lattice Boltzmann method, statistical analysis, interaction

中图分类号:

O357.5
O359

查露, 栗晶, 曹传胜, 黄议, 朱合华, 柳朝晖, 郑楚光. 三维颗粒群沉降的格子Boltzmann模拟[J]. 中国科学院大学学报, 2016, 33(2): 240-246.

ZHA Lu, LI Jing, CAO Chuansheng, HUANG Yi, ZHU Hehua, LIU Zhaohui, ZHENG Chuguang. Lattice Boltzmann simulation of three-dimensional particle group settlement[J]. , 2016, 33(2): 240-246.

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三维颗粒群沉降的格子Boltzmann模拟

Lattice Boltzmann simulation of three-dimensional particle group settlement

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