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Simulation of supersonic turbulent non-reactive flow in ramp-cavity combustor using a discontinuous spectral element method

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

The flow inside the combustion chamber of a scramjet engine is a prime example of multi-scale and multi-physics flow and is often accompanied by the concurrent presence of shock waves and turbulence. In this work, a high-order discontinuous spectral element method (DSEM) is employed to simulate the supersonic non-reactive flow inside a ramp-cavity combustor. The Mach number is Ma = 2. An entropy viscosity method is implemented to capture the shocks, and the standard Smagorinsky-Lilly model is used as the turbulence model. Results are presented for two simulations with and without an injector and the results are compared. The effect of the Reynolds number is also studied. Stronger mixing effects are observed within the cavity for the case with the injector. Higher Reynolds number also results in a steeper and stronger shock and reflection waves.

Original languageEnglish (US)
Title of host publication54th AIAA Aerospace Sciences Meeting
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624103933
DOIs
StatePublished - 2016
Externally publishedYes
Event54th AIAA Aerospace Sciences Meeting, 2016 - San Diego, United States
Duration: Jan 4 2016Jan 8 2016

Publication series

Name54th AIAA Aerospace Sciences Meeting
Volume0

Other

Other54th AIAA Aerospace Sciences Meeting, 2016
Country/TerritoryUnited States
CitySan Diego
Period1/4/161/8/16

ASJC Scopus subject areas

  • Aerospace Engineering

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