Toward accurate simulation of Shockwave-turbulence interaction on unstructured meshes: A coupling of high-order FR and LAD schemes

Takanori Haga, Soshi Kawai

Research output: Contribution to conferencePaperpeer-review

8 Citations (Scopus)

Abstract

A high-order flux reconstruction (FR) scheme on unstructured hexahedral grids is coupled with the localized artificial diffusivity (LAD) scheme for aiming at accurate simulation of shock-turbulence interactions. Suitable flux reconstruction procedure is derived for ensuring the global discrete conservation. We then propose a simple and efficient filter for obtaining smooth distribution of the artificial diffusivity on unstructured hexahedral meshes, which is one of the key issues for developing robust LAD method on unstructured meshes. The proposed scheme has favorable properties of sub-cell shock capturing with the length scale of O(h/p) and superior high-order-accuracy preservation for smooth flows. The proposed scheme is tested on typical shock-related problems, including 1D shock tube, 1D shock-entropy wave interaction, 2D steady shock flows, and 2D shock-vortex interaction. The comparisons between the proposed scheme, a conventional finite volume method and the FR scheme with a limiter illustrate the superior performance of the proposed FR-LAD scheme for the simulation of flows involving shocks, acoustic waves, turbulence, and their interaction.

Original languageEnglish
DOIs
Publication statusPublished - 2013
Externally publishedYes
Event21st AIAA Computational Fluid Dynamics Conference - San Diego, CA, United States
Duration: 2013 Jun 242013 Jun 27

Other

Other21st AIAA Computational Fluid Dynamics Conference
CountryUnited States
CitySan Diego, CA
Period13/6/2413/6/27

ASJC Scopus subject areas

  • Fluid Flow and Transfer Processes
  • Energy Engineering and Power Technology
  • Aerospace Engineering
  • Mechanical Engineering

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