Numerical investigation of unsteady heat transfer on a double wedge geometry in hypervelocity flows

Jeffrey R. Komives, Ioannis Nompehv, Graham V. Candler

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

9 Scopus citations

Abstract

In recent experiments performed at the University of Illinois, nitrogen and air flows over a double wedge geometry at Mach numbers varying from 4-7 and stagnation enthalpies varying from 2.1-8.0 MJ/kg were investigated. Selected cases from these experiments are simulated using US3D to ascertain the ability of state-of-the-art finite-volume hypersonic flow solvers to replicate experimental results. Two-dimensional simulations predict an unsteady separation and shock-shock interaction under both reacting and non-reacting conditions. The numerical solutions reach a time-periodic solution for certain experimental conditions. Good agreement is observed between experiment and two-dimensional simulations of the Mach 7 flow conditions when the simulations are limited to the experimental run-time. When run to a large number of flowtimes, the agreement is poor. Three-dimensional simulations of these free-stream conditions show non-uniformities in the wedge boundary layer during flow development.

Original languageEnglish (US)
Title of host publication44th AIAA Fluid Dynamics Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781624102899
DOIs
StatePublished - 2014
Event44th AIAA Fluid Dynamics Conference 2014 - Atlanta, GA, United States
Duration: Jun 16 2014Jun 20 2014

Publication series

Name44th AIAA Fluid Dynamics Conference

Other

Other44th AIAA Fluid Dynamics Conference 2014
Country/TerritoryUnited States
CityAtlanta, GA
Period6/16/146/20/14

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