Acceleration of bluff body calculation using MDGRAPE-2

T. K. Sheel, Shinnosuke Obi

Research output: Contribution to journalArticle

Abstract

Bluff body calculation was accelerated by using a special-purpose computer, MDGRAPE-2, that was exclusively designed for molecular dynamics simulations. The three main issues were solved regarding the implementation of the MDGRAPE-2 on vortex methods. These issues were the efficient calculation of the Biot-Savart and stretching equation, the optimization of the table domain, and the round-off error caused by the partially single precision calculation in the MDGRAPE-2. Finally this technique was applied to calculation of flow around a circular cylinder. The drag and lift coefficient was investigated to check the validity of the proposed method.

Original languageEnglish
Pages (from-to)169-176
Number of pages8
JournalInternational Journal of Engineering, Transactions A: Basics
Volume23
Issue number2
Publication statusPublished - 2010 Apr

Fingerprint

Circular cylinders
Stretching
Drag
Molecular dynamics
Vortex flow
Computer simulation

Keywords

  • Bluff body
  • Drag and lift coefficient
  • MDGRAPE-2
  • Vortex method

ASJC Scopus subject areas

  • Engineering(all)

Cite this

Acceleration of bluff body calculation using MDGRAPE-2. / Sheel, T. K.; Obi, Shinnosuke.

In: International Journal of Engineering, Transactions A: Basics, Vol. 23, No. 2, 04.2010, p. 169-176.

Research output: Contribution to journalArticle

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