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Moving-body simulations using overset framework with rigid body dynamics

Author

Listed:
  • Koomullil, Roy
  • Cheng, Gary
  • Soni, Bharat
  • Noack, Ralph
  • Prewitt, Nathan

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.

Suggested Citation

  • Koomullil, Roy & Cheng, Gary & Soni, Bharat & Noack, Ralph & Prewitt, Nathan, 2008. "Moving-body simulations using overset framework with rigid body dynamics," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 78(5), pages 618-626.
    • Handle: RePEc:eee:matcom:v:78:y:2008:i:5:p:618-626
    DOI: 10.1016/j.matcom.2008.04.009
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    Cited by:

    1. Cheng, Gary C. & Koomullil, Roy P. & Ito, Yasushi & Shih, Alan M. & Sittitavornwong, Somsak & Waite, Peter D., 2014. "Assessment of surgical effects on patients with obstructive sleep apnea syndrome using computational fluid dynamics simulations," Mathematics and Computers in Simulation (MATCOM), Elsevier, vol. 106(C), pages 44-59.

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