计算物理 ›› 2019, Vol. 36 ›› Issue (4): 386-394.DOI: 10.19596/j.cnki.1001-246x.7876

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表征体元尺度渗流的离散统一动理学格式

陈玺君, 郭照立   

  1. 华中科技大学煤燃烧国家重点实验室, 武汉 430074
  • 收稿日期:2018-04-08 修回日期:2018-06-12 出版日期:2019-07-25 发布日期:2019-07-25
  • 通讯作者: 郭照立,E-mail:zlguo@hust.edu.cn
  • 作者简介:陈玺君(1994-),男,硕士,研究基于离散统一动理学格式的多孔介质单相流动,E-mail:xjchen@hust.edu.cn

Discrete Unified Gas Kinetic Scheme for Porous Media Flow at Representative Elementary Volume Scale

CHEN Xijun, GUO Zhaoli   

  1. State Key Laboratory of Coal Combustion, Huazhong University of Science and Technology, Wuhan 430074, China
  • Received:2018-04-08 Revised:2018-06-12 Online:2019-07-25 Published:2019-07-25

摘要: 结合表征体元尺度的通用渗流模型,提出离散统一动理学格式(DUGKS)渗流方法,分别用均匀网格和非均匀网格计算二维Poiseuille、Couette、方腔流等经典渗流问题,检验DUGKS渗流方法的有效性和非均匀网格应用的优势,将DUGKS渗流方法应用到裂缝系统中.

关键词: 多孔介质流动, 表征体元尺度, 离散统一动理学格式

Abstract: DUGKS is extended to model porous media flow at representative elementary volume scale combined with generalized porous media model. It is verified by several two-dimensional classical problems:Poiseuille flow, Couette flow and cavity flow. Effectiveness of DUGKS for porous media flow is tested and advantage of DUGKS in grid flexibility is demonstrated. A fracture system is modeled by DUGKS for porous media flow.

Key words: porous media flow, representative elementary volume scale, DUGKS

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