Tarun Kumar Sheel - Modelling and Simulation, University of Rostock

Bluff body calculation was accelerated by using a special-purpose computer, MDGRAPE-۲, that was exclusively designed for molecular dynamics simulations. The three main issues were solved regarding the implementation of the MDGRAPE-۲ 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-۲. 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.

Vortex Method, MDGRAPE, ۲, Bluff Body, Drag and lift coefficient