流体シミュレーションにおける粒子法：MPS法とLSMPS法の数値解析精度の比較

• 室谷 浩平

  東京大学大学院工学系研究科システム創成学専攻

• 玉井 佑

  東京大学大学院工学系研究科システム創成学専攻

• 越塚 誠一

  東京大学大学院工学系研究科システム創成学専攻

書誌事項

タイトル別名

• Comparison of Numerical Accuracy between MPS Method and LSMPS Method as Particle Methods in Computational Fluid Simulation
• リュウタイ シミュレーション ニ オケル リュウシホウ : MPSホウ ト LSMPSホウ ノ スウチ カイセキ セイド ノ ヒカク

抄録

In this paper, the moving particle simulation(MPS) method and the least squares moving particle semi-implicit(LSMPS) method are compared by numerical verification. The MPS method was developed in 1996 by Koshizuka and Oka in order to solve incompressible flow with free surface. Although the original MPS method was difficult to solve various industrial problems with accuracy and stability, the todayʼs MPS method becomes one of the most popular particle method in the engineering fields by various numerical stabilization techniques. However, since spatial discretization models of the MPS method do not have consistency, the MPS method can not solve mathematically precisely differential equations. In order to solve this problem, the LSMPS method was developed in 2014 by Tamai and Koshizuka. The LSMPS method have arbitrary high-order accurate meshfree spatial discretization schemes, consistent time integration schemes, and generalized treatment of boundary conditions. In this paper, after summaries of the MPS method and the LSMPS method are described, two kinds of numerical verifications are performed for both methods.

収録刊行物

• 応用数理

  応用数理 26 (2), 2-13, 2016-06-24

  一般社団法人 日本応用数理学会

詳細情報

• CRID: 1390282680743698176
• NII論文ID: 130005267467
• NII書誌ID: AN10288886
• ISSN: 09172270
• ISSN: 24321982
• DOI: 10.11540/bjsiam.26.2_2
• NDL書誌ID: 027506255
• Web Site: http://id.ndl.go.jp/bib/027506255
• Web Site: https://ndlsearch.ndl.go.jp/books/R000000004-I027506255
• 本文言語コード: ja
• データソース種別:
  • JaLC
  • NDL
  • CiNii Articles
  • KAKEN
• 抄録ライセンスフラグ: 使用不可