Numerical investigation of transition delay for various controlled breakdown scenarios in a Mach 6 Boundary Layer using porous walls

Christoph Hader, Christoph Brehm, H. F. Fasel

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

1 Scopus citations

Abstract

The influence of porous walls on the transition process of a Mach 6 Boundary Layer for different controlled breakdown scenarios is investigated using temporal direct numerical simulations. This study focusses on the non-linear regime where prior studies have mainle focussed on the linear stage. The fundamental and subharmonic resonance scenario are compared for a smooth wall case and a porous wall geometry. The porous walls showed potential to delay transition for the fundamental resonance scenario. The goal in this paper is to show that for other breakdown scenarios the porous walls still remain effective in delaying transition.

Original languageEnglish (US)
Title of host publicationAIAA AVIATION 2014 -7th AIAA Theoretical Fluid Mechanics Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc.
ISBN (Print)9781624102936
DOIs
StatePublished - 2014
EventAIAA AVIATION 2014 -7th AIAA Theoretical Fluid Mechanics Conference 2014 - Atlanta, GA, United States
Duration: Jun 16 2014Jun 20 2014

Publication series

NameAIAA AVIATION 2014 -7th AIAA Theoretical Fluid Mechanics Conference

Other

OtherAIAA AVIATION 2014 -7th AIAA Theoretical Fluid Mechanics Conference 2014
CountryUnited States
CityAtlanta, GA
Period6/16/146/20/14

ASJC Scopus subject areas

  • Aerospace Engineering
  • Mechanical Engineering

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    Hader, C., Brehm, C., & Fasel, H. F. (2014). Numerical investigation of transition delay for various controlled breakdown scenarios in a Mach 6 Boundary Layer using porous walls. In AIAA AVIATION 2014 -7th AIAA Theoretical Fluid Mechanics Conference (AIAA AVIATION 2014 -7th AIAA Theoretical Fluid Mechanics Conference). American Institute of Aeronautics and Astronautics Inc.. https://doi.org/10.2514/6.2014-2500