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A high order compact scheme for hypersonic aerothermodynamics

Fico, Vincenzo and Emerson, David and Reese, Jason (2010) A high order compact scheme for hypersonic aerothermodynamics. In: 48th AIAA Aerospace Sciences Meeting, 2010-01-04 - 2010-01-07.

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Abstract

A novel high order compact scheme for solving the compressible Navier-Stokes equations has been developed. The scheme is an extension of a method originally proposed for solving the Euler equations, and combines several techniques for the solution of compressible flowfields, such as upwinding, limiting and flux vector splitting, with the excellent properties of high order compact schemes. Extending the method to the Navier-Stokes equations is achieved via a Kinetic Flux Vector Splitting technique, which represents an unusual and attractive way to include viscous effects. This approach offers a more accurate and less computationally expensive technique than discretizations based on more conventional operator splitting. The Euler solver has been validated against several inviscid test cases, and results for several viscous test cases are also presented. The results confirm that the method is stable, accurate and has excellent shock-capturing capabilities for both viscous and inviscid flows.