Immersed boundary method for compressible high-reynolds number viscous flow around moving bodies

Yong Cho, Jogesh Chopra, Philip J. Morris

Research output: Chapter in Book/Report/Conference proceedingConference contribution

7 Scopus citations

Abstract

This paper describes a methodology for the simulation of high Reynolds number flow over rigid and moving bodies. The calculations are performed on a structured Cartesian grid regardless of the geometric complexity or motion of the body. The approach is based on a modified version of the Brinkman Penalization method. This paper describes the implementation of a simple modified penalization method for compressible flows. To avoid oscillations in the vicinity of the body and to simulate shock-containing flows, a Weighted Essentially Non-Oscillatory scheme is used to discretize the spatial flux derivatives. Two turbulence models are used: the two-equation Menter SST Unsteady Reynolds-averaged Navier-Stokes model and a two-equation Detached Eddy Simulation. The method is implemented for both stationary and moving grids in a three-dimensional parallel code. Results are given for a grid dependence study, flow over airfoils at subsonic, transonic and supersonic conditions, and unsteady transonic flow over a cylinder and an airfoil at high angle of attack. The effect of the choice of turbulence model is shown. The moving grid capability is demonstrated for airfoils at a high angles of attack and a cylinder rotating at high speed. Finally, as a larger scale demonstration, the flow around a rotor blade with an active flap is simulated.

Original languageEnglish (US)
Title of host publicationCollection of Technical Papers - 45th AIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
Pages1413-1426
Number of pages14
ISBN (Print)1563478900, 9781563478901
DOIs
StatePublished - 2007
Event45th AIAA Aerospace Sciences Meeting 2007 - Reno, NV, United States
Duration: Jan 8 2007Jan 11 2007

Publication series

NameCollection of Technical Papers - 45th AIAA Aerospace Sciences Meeting
Volume3

Other

Other45th AIAA Aerospace Sciences Meeting 2007
CountryUnited States
CityReno, NV
Period1/8/071/11/07

All Science Journal Classification (ASJC) codes

  • Space and Planetary Science
  • Aerospace Engineering

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