%0 Journal Article %T Acceleration of Bluff Body Calculation Using Mdgrape-2 %J International Journal of Engineering %I Materials and Energy Research Center %Z 1025-2495 %A Sheel, Tarun Kumar %D 2010 %\ 04/01/2010 %V 23 %N 2 %P 169-176 %! Acceleration of Bluff Body Calculation Using Mdgrape-2 %K Vortex Method %K MDGRAPE %K 2 %K Bluff Body %K Drag and lift coefficient %R %X 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. %U https://www.ije.ir/article_71851_b621fdea82174ec0e1c937345dd79487.pdf