考虑自由液面和不规则颗粒的流体-颗粒相互作用的元球离散元物质点耦合算法
ID:275 View Protection:ATTENDEE Updated Time:2024-04-30 10:48:26 Hits:653 Oral Presentation

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Abstract
自然界和工业领域中的流体-颗粒相互作用往往涉及自由液面大变形和不规则颗粒形状。为精确模拟该过程,本文作者提出了一种元球离散元(MDEM, Metaball Discrete Element Method)-物质点(MPM, Material Point Method)耦合算法。该方法集成了MPM在处理自由液面大变形的能力,和MDEM在描述不规则形状颗粒的优势。针对MPM点和MDEM颗粒之间尺寸差异大的难点,本文还引入了一种新的碰撞检测方案,以确定MPM点与MDEM颗粒之间的碰撞参数。通过对圆球入水、溃坝流冲击块体和不规则颗粒沉降的模拟,验证了本文耦合方法的有效性。
 
Keywords
元球离散元法,物质点法,不规则颗粒,流体-颗粒相互作用
Speaker
任松凯
杭州电子科技大学

Submission Author
任松凯 杭州电子科技大学
张沛 西湖大学
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Important Date
  • Conference Date

    May 31

    2024

    to

    Jun 03

    2024

  • Jun 03 2024

    Abstract Submission Deadline

  • Jun 03 2024

    Draft paper submission deadline

  • Jun 03 2024

    Registration deadline

Sponsored By
Panel of Computational Mechanics on Granular Materials
Working Party of Computational Mechanics
Chinese Society of Theoretical and Applied Mechanics
Organized By
Hohai University
Dalian University of Technology
Chinese Society of Particuology
Jiangsu Society of Theoretical and Applied Mechanics
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