Numerical Investigation of the Nonlinear Transition Stages in a High-Enthalpy Hypersonic Boundary Layer on a Right Cone

Michelle Bailey, Christoph Hader, Hermann F. Fasel

Research output: Chapter in Book/Report/Conference proceedingChapter

Abstract

Direct Numerical Simulations (DNS) were used to investigate the laminar-turbulent transition process for a straight (right) cone for the high enthalpy conditions of the Caltech T5 hypersonic tunnel. Preliminary results of a three-dimensional wave packet simulation indicated that the so-called “fundamental breakdown” is most likely the dominant nonlinear mechanism for these conditions and geometry. Contours of the time-averaged Stanton number obtained from a preliminary “controlled” fundamental breakdown DNS exhibited the formation of “hot” streaks on the cone surface. “Hot” streak patterns have also been observed for low enthalpy experiments in the Boeing/AFOSR Mach 6 Quiet Tunnel (BAM6QT) at Purdue and in investigations using DNS for these conditions.

Original languageEnglish (US)
Title of host publicationIUTAM Bookseries
PublisherSpringer Science and Business Media B.V.
Pages553-563
Number of pages11
DOIs
StatePublished - 2022

Publication series

NameIUTAM Bookseries
Volume38
ISSN (Print)1875-3507
ISSN (Electronic)1875-3493

ASJC Scopus subject areas

  • Civil and Structural Engineering
  • Automotive Engineering
  • Materials Science(all)
  • Aerospace Engineering
  • Acoustics and Ultrasonics
  • Mechanics of Materials
  • Mechanical Engineering

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