A high-resolution scheme for compressible multicomponent flows with shock waves

Soshi Kawai, Hiroshi Terashima

Research output: Contribution to journalArticlepeer-review

37 Citations (Scopus)

Abstract

A simple methodology for a high-resolution scheme to be applied to compressible multicomponent flows with shock waves is investigated. The method is intended for use with direct numerical simulation or large eddy simulation of compressible multicomponent flows. The method dynamically adds non-linear artificial diffusivity locally in space to capture different types of discontinuities such as a shock wave, contact surface or material interface while a high-order compact differencing scheme resolves a broad range of scales in flows. The method is successfully applied to several one-dimensional and two-dimensional compressible multicomponent flow problems with shock waves. The results are in good agreement with experiments and earlier computations qualitatively and quantitatively. The method captures unsteady shock and material discontinuities without significant spurious oscillations if initial start-up errors are properly avoided. Comparisons between the present numerical scheme and high-order weighted essentially non-oscillatory (WENO) schemes illustrate the advantage of the present method for resolving a broad range of scales of turbulence while capturing shock waves and material interfaces. Also the present method is expected to require less computational cost than popular high-order upwind-biased schemes such as WENO schemes. The mass conservation for each species is satisfied due to the strong conservation form of governing equations employed in the method.

Original languageEnglish
Pages (from-to)1207-1225
Number of pages19
JournalInternational Journal for Numerical Methods in Fluids
Volume66
Issue number10
DOIs
Publication statusPublished - 2011 Aug
Externally publishedYes

Keywords

  • Artificial diffusivity method
  • Compact differences
  • Compressible multicomponent flows
  • Discontinuity capturing
  • High-order methods
  • Shock waves
  • Turbulence

ASJC Scopus subject areas

  • Computational Mechanics
  • Mechanics of Materials
  • Mechanical Engineering
  • Computer Science Applications
  • Applied Mathematics

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