Least squares moving particle semi-implicit method: An arbitrary high order accurate meshfree Lagrangian approach for incompressible flow with free surfaces

Tasuku Tamai*, Seiichi Koshizuka

*この研究の対応する著者

研究成果: Article査読

70 被引用数 (Scopus)

抄録

In this paper, a consistent meshfree Lagrangian approach for numerical analysis of incompressible flow with free surfaces, named least squares moving particle semi-implicit (LSMPS) method, is developed. The present methodology includes arbitrary high-order accurate meshfree spatial discretization schemes, consistent time integration schemes, and generalized treatment of boundary conditions. LSMPS method can resolve the existing major issues of widely used strong-form particle method for incompressible flow—particularly, the lack of consistency condition for spatial discretization schemes, difficulty in enforcing consistent Neumann boundary conditions, and serious instability like unphysical pressure oscillation. Applications of the present proposal demonstrate remarkable enhancements of stability and accuracy.

本文言語English
ページ(範囲)277-305
ページ数29
ジャーナルComputational Particle Mechanics
1
3
DOI
出版ステータスPublished - 2014 9 1
外部発表はい

ASJC Scopus subject areas

  • 計算力学
  • 土木構造工学
  • 数値解析
  • モデリングとシミュレーション
  • 流体および伝熱
  • 計算数学

フィンガープリント

「Least squares moving particle semi-implicit method: An arbitrary high order accurate meshfree Lagrangian approach for incompressible flow with free surfaces」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル