Moving-body simulations using overset framework with rigid body dynamics

Academic Article


  • 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. © 2008 IMACS.
  • Authors

    Digital Object Identifier (doi)

    Author List

  • Koomullil R; Cheng G; Soni B; Noack R; Prewitt N
  • Start Page

  • 618
  • End Page

  • 626
  • Volume

  • 78
  • Issue

  • 5-6