Laminar-turbulent transition on a flared cone at mach 6

Christoph Hader, Hermann F. Fasely

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

12 Scopus citations

Abstract

Direct Numerical Simulations (DNS) are carried out to investigate the laminar-turbulent transition for a flared cone at Mach 6. The cone geometry of the flared cone experiments in the Boeing/AFOSR Mach 6 Quiet Tunnel (BAM6. QT) at Purdue University is used for the simulations. In the linear regime, an increasing stagnation pressure leads to higher N-factors and an increase of the most unstable frequency band. Low grid-resolution simulations are carried out to identify the azimuthal wave number for a specific set of conditions that led to the strongest secondary growth rate in a fundamental resonance scenario. Sub-sequently, for the case which led to the strongest resonance onset, detailed investigations were carried out using high-resolution DNS. The simulations results exhibit streamwise streaks of high skin friction and of high heat transfer at the cone surface. Streamwise streaks on the flared cone surface were also observed in the experiments carried out at the BAM6. QT facility using temperature sensitive paint.

Original languageEnglish (US)
Title of host publication46th AIAA Fluid Dynamics Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624104367
DOIs
StatePublished - 2016
Externally publishedYes
Event46th AIAA Fluid Dynamics Conference, 2016 - Washington, United States
Duration: Jun 13 2016Jun 17 2016

Publication series

Name46th AIAA Fluid Dynamics Conference

Conference

Conference46th AIAA Fluid Dynamics Conference, 2016
Country/TerritoryUnited States
CityWashington
Period6/13/166/17/16

ASJC Scopus subject areas

  • Engineering (miscellaneous)
  • Aerospace Engineering

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