Flow dynamics and mixing of a sonic jet into supersonic crossflow

Liwei Zhang, Vigor Yang

Research output: Contribution to conferencePaperpeer-review

4 Citations (Scopus)

Abstract

The flow dynamics and mixing process of a sonic ethylene jet into supersonic air crossflow is numerically investigated based on the large-eddy-simulation (LES) technique, with special attention given to the near-injector and near-wall turbulence treatment. The salient turbulent, vortical, and shock structures are examined to identify the mechanisms dictating the supersonic mixing layer. Results reveal that the periodic shedding of shear-layer vortices accounts significantly for the crossflow entrainment through the stretching-tilting-tearing mechanism. The calculated mixing is qualitatively comparable to the experimental data. The possible roles of the low-speed regions, both ahead of the jet and in the wake region, are also explored to further elucidate the system characteristics.

Original languageEnglish
DOIs
Publication statusPublished - 2012
Event50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition - Nashville, TN, United States
Duration: 2012 Jan 92012 Jan 12

Conference

Conference50th AIAA Aerospace Sciences Meeting Including the New Horizons Forum and Aerospace Exposition
CountryUnited States
CityNashville, TN
Period12-01-0912-01-12

All Science Journal Classification (ASJC) codes

  • Aerospace Engineering

Fingerprint Dive into the research topics of 'Flow dynamics and mixing of a sonic jet into supersonic crossflow'. Together they form a unique fingerprint.

Cite this