Acceleration of bluff body calculation using MDGRAPE-2

Sheel, Tarun K.;Obi, S.
(2010) International Journal of Engineering — Vol. 23, n° 2, p. 169-176 (2010)

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Authors
  • Sheel, Tarun K.UCLouvain
    Author
  • Obi, S.Department of Mechanical Engineering, Keio University, Tokyo, Japan
    Author
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.
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Sheel, T. K., & Obi, S. (2010). Acceleration of bluff body calculation using MDGRAPE-2. International Journal of Engineering, 23(2), 169-176. https://hdl.handle.net/2078.5/75307 (Original work published 2010)