Moving-body simulations using overset framework with rigid body dynamics

Roy Koomullil, Gary Cheng, Bharat Soni, Ralph Noack and Nathan Prewitt

Mathematics and Computers in Simulation (MATCOM), 2008, vol. 78, issue 5, 618-626

Abstract: The simulation of flow past bodies in relative motion is a challenging task due to the presence of complex flow features, moving grids, and rigid body movements under the action of external forces and moments. A generalized grid-based overset framework is presented for the simulation of this class of problems. The equations that govern the fluid flows are cast in an integral form and are solved using a cell-centered finite volume upwind scheme. The rigid body dynamics equations are formulated using quaternion and are solved using fourth-order Runge–Kutta (RK) time integration. The overset framework and the six degree of freedom (6-DOF) rigid body dynamics simulators are developed in a library form for easy incorporation into existing flow solvers. The details of the flow solver, the 6-DOF library, and the overset framework are presented in this paper along with the validation results of the developed system.

Keywords: Overset grids; Rigid body dynamics; Moving-body problems; Library approach (search for similar items in EconPapers)
Date: 2008
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Citations: View citations in EconPapers (1)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:matcom:v:78:y:2008:i:5:p:618-626

DOI: 10.1016/j.matcom.2008.04.009

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