A dynamic characteristic filter for DNS/LES of compressible turbulent flows

Noma Park, Krishnan Mahesh

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

Abstract

We propose a novel shock-capturing method that is based on the ideas of characteristic filters and dynamic suboptimal control. A cost function is based on the smoothness of the solution, and formally minimized to obtain the unknown coefficient in the shock-capturing numerical fluxes. The proposed dynamic procedure is applied to one-dimensional Euler equation equation and two-dimensional Navier-Stokes equation. The proposed dynamic filter achieved noticeable success in capturing shock while minimizing the overall impact on the solution.

Original languageEnglish (US)
Title of host publication47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
StatePublished - Dec 1 2009
Event47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition - Orlando, FL, United States
Duration: Jan 5 2009Jan 8 2009

Other

Other47th AIAA Aerospace Sciences Meeting including the New Horizons Forum and Aerospace Exposition
CountryUnited States
CityOrlando, FL
Period1/5/091/8/09

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