An Immersed Boundary Method for Compressible Flows with Complex Boundaries

Jie Yang; Song Ping Wu

doi:10.4028/www.scientific.net/AMM.477-478.281

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 477-478An Immersed Boundary Method for Compressible Flows...

An Immersed Boundary Method for Compressible Flows with Complex Boundaries

Abstract:

An immersed boundary method based on the ghost-cell approach is presented in this paper. The compressible Navier-Stokes equations are discretized using a flux-splitting method for inviscid fluxes and second-order central-difference for the viscous components. High-order accuracy is achieved by using weighted essentially non-oscillatory (WENO) and Runge-Kutta schemes. Boundary conditions are reconstructed by a serial of linear interpolation and inverse distance weighting interpolation of flow variables in fluid domain. Two classic flow problems (flow over a circular cylinder, and a NACA 0012 airfoil) are simulated using the present immersed boundary method, and the predictions show good agreement with previous computational results.

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Periodical:

Applied Mechanics and Materials (Volumes 477-478)

Pages:

281-284

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.477-478.281

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Online since:

December 2013

Authors:

Jie Yang*, Song Ping Wu

Keywords:

Compressible Navier-Stokes Equations, Ghost-Cell, Immersed Boundary Method

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