Numerical investigation of transverse hydrogen jet into supersonic crossflow using detached-eddy simulation

Su Hee Won, In Seuck Jeung, Bernard Parent, Jeong Yeol Choi

Research output: Contribution to journalArticlepeer-review

64 Scopus citations

Abstract

A three-dimensional unsteady reacting flowfield that is generated by transverse hydrogen injection into a supersonic mainstream is numerically investigated using detached-eddy simulation and a finite-rate chemistry model. Grid refinement with the grid-convergence-index concept is applied to the instantaneous flowfield for assessing the grid resolution and solution convergence. Validation is performed for the jet penetration height, and the predicted result is in good agreement with experimental trends. The results indicate that jet vortical structures are generated as the interacting counter-rotating vortices become alternately detached in the upstream recirculation region. Although the numerical OH distribution reproduces the experimental OH-planar-laser-induced fluorescence well, there are some disparities in the ignition delay times due to the restricted availability of experimental and numerical data. The effects of the turbulence model on combustion are identified by a comparative analysis of the Reynolds-averaged Navier-Stokes and detached-eddy simulation approaches. Their effects are quantified by the production of H2O, which is the primary species of hydrogen combustion.

Original languageEnglish (US)
Pages (from-to)1047-1058
Number of pages12
JournalAIAA journal
Volume48
Issue number6
DOIs
StatePublished - Jun 2010
Externally publishedYes

ASJC Scopus subject areas

  • Aerospace Engineering

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