CIESC Journal ›› 2009, Vol. 17 ›› Issue (4): 535-545.

• •    下一篇

Challenges in Study of Single Particles and Particle Swarms

毛在砂, 杨超   

  1. Key Lab of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
  • 收稿日期:2009-06-08 修回日期:2009-07-12 出版日期:2009-08-28 发布日期:2010-12-30
  • 通讯作者: MAO Zaisha, E-mail: zsmao@home.ipe.ac.cn
  • 作者简介:
  • 基金资助:
    Supported by the National Natural Science Foundation of China(20490206,20676134);the National Basic Research Program of China(2009CB623406,2004CB217604);the National Project of Scientific and Technical Supporting Program(2008BAF33B03);the National High Technology Research and Development Program of China(2007AA060904)

Challenges in Study of Single Particles and Particle Swarms

MAO Zaisha, YANG Chao   

  1. Key Lab of Green Process and Engineering, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China
  • Received:2009-06-08 Revised:2009-07-12 Online:2009-08-28 Published:2010-12-30
  • Supported by:
    Supported by the National Natural Science Foundation of China(20490206,20676134);the National Basic Research Program of China(2009CB623406,2004CB217604);the National Project of Scientific and Technical Supporting Program(2008BAF33B03);the National High Technology Research and Development Program of China(2007AA060904)

摘要: Numerical simulation of multiphase flows in processing equipment in industry with two-fluid models and Eulerian-Lagrangian approaches requires the constitutive equations describing the interactions between the dispersed phase of high concentration and the continuous phase.The status of research on the forces on dispersed solid and fluid particles is reviewed in this article.As compared with the knowledge on drag of single solid particles,study on particle swarms and on other forces is not sufficient to meet the demand of reliable and efficient numerical simulation of multiphase flows.Thus,thorough study on the particle swarms becomes the key to accurate multi-scale simulation of multiphase flows.Besides,the development of efficient algorithm dealing with the non-uniformity on both equipment and mesoscopic scales is recognized as an important issue to be resolved.The research topics in the near future are suggested.

关键词: particle, drop, bubble, swarm, interphase force, multiphase flow, numerical simulation

Abstract: Numerical simulation of multiphase flows in processing equipment in industry with two-fluid models and Eulerian-Lagrangian approaches requires the constitutive equations describing the interactions between the dispersed phase of high concentration and the continuous phase.The status of research on the forces on dispersed solid and fluid particles is reviewed in this article.As compared with the knowledge on drag of single solid particles,study on particle swarms and on other forces is not sufficient to meet the demand of reliable and efficient numerical simulation of multiphase flows.Thus,thorough study on the particle swarms becomes the key to accurate multi-scale simulation of multiphase flows.Besides,the development of efficient algorithm dealing with the non-uniformity on both equipment and mesoscopic scales is recognized as an important issue to be resolved.The research topics in the near future are suggested.

Key words: particle, drop, bubble, swarm, interphase force, multiphase flow, numerical simulation