Simulations of viscous hypersonic double-cone flows: Influence of numerics

Marie Claude Druguet, Graham V. Candler, Ioannis Nompelis

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

6 Scopus citations

Abstract

This paper presents the results of a study on the effects of the numerics on the simulation of a hypersonic flow past a sharp doublecone. Previous studies have shown that the double-cone flow is challenging to compute, making it interesting for testing both numerical schemes and physical models. In the present study we focus on the numerical aspects only, and show that the results are very sensitive to the numerical flux evaluation method used. However, when the grid is fine enough, all the flux evaluation schemes give the same results, though this may require a very large number of points for the most dissipative schemes. On the other hand, the most accurate schemes have the great advantage of giving the final results on a coarser grid, and are therefore cheaper. Interestingly, this study also shows that the modified StegerWarming solver gives as accurate results as other wellknown accurate schemes, such as the Roe scheme. Finally, it is important to point out that this work could not have been done without an implicit code.

Original languageEnglish (US)
Title of host publication16th AIAA Computational Fluid Dynamics Conference
StatePublished - Dec 1 2003
Event16th AIAA Computational Fluid Dynamics Conference 2003 - Orlando, FL, United States
Duration: Jun 23 2003Jun 26 2003

Publication series

Name16th AIAA Computational Fluid Dynamics Conference

Other

Other16th AIAA Computational Fluid Dynamics Conference 2003
CountryUnited States
CityOrlando, FL
Period6/23/036/26/03

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