Large-eddy simulation of shock-wave-induced turbulent mixing

Ben Thornber, Dimitris Drikakis

Research output: Contribution to journalArticle

9 Citations (Scopus)

Abstract

The paper presents implicit large-eddy simulation (ILES) simulation of a shock tube experiment involving compressible turbulent mixing. A new characteristic-based approximate Riemann solver is derived, and employed in a second-order and fifth-order finite volume Godunov-type ILES framework. The methods are validated against (qualitative) experimental data and then compared and contrasted in terms of resolved turbulent kinetic energy and mixing parameters as a function of grid resolution. It is concluded that both schemes represent the experiment with good accuracy. However, the fifth-order results are approximately equivalent to results gained on double the grid size at second order, whereas the fifth-order method requires only approximately 20% extra computational time.
Original languageEnglish
Pages (from-to)1504-1513
Number of pages10
JournalJournal of Fluids Engineering
Volume129
Issue number12
Early online date29 Jun 2007
DOIs
Publication statusPublished - 1 Dec 2007

Keywords

  • computer simulation
  • finite volume method
  • parameter estimation
  • shock tubes
  • turbulent flow
  • grid resolution
  • implicit large eddy simulation
  • mixing parameters
  • turbulent mixing
  • large eddy simulation

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