Development of new techniques for studying unsteady behavior in hypersonic boundary layer interactions

Ozgur Tumuklu, Deborah Levin Fliflet, Vassilis Theofilis

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

Abstract

Shock dominated separated laminar hypersonic flows over a double cone geometry were investigated by analyzing unsteady direct simulation Monte Carlo signals with the residuals algorithm for unit Reynolds numbers gradually increasing from 9.35×104 to 3.74×105 m−1 at a Mach number of 16. To investigate the origin of the striations in the bow shock observed in the amplitude functions of the highest Re number case, the momentum density was decoupled into thermal and acoustic parts using Doak’s momentum potential theory. The spatial distribution of the acoustic and thermal fields was found to be uniform for the lowest Reynolds number case whereas alternating patterns, especially in the vicinity of the separation zone and the triple point were observed for the acoustic field of the highest Reynolds number case. The thermal component of the momentum density was found to be large at the cone shoulder at later times due to a Kelvin-Helmholtz instability.

Original languageEnglish (US)
Title of host publication2018 Fluid Dynamics Conference
PublisherAmerican Institute of Aeronautics and Astronautics Inc, AIAA
ISBN (Print)9781624105531
DOIs
StatePublished - Jan 1 2018
Event48th AIAA Fluid Dynamics Conference, 2018 - Atlanta, United States
Duration: Jun 25 2018Jun 29 2018

Publication series

Name2018 Fluid Dynamics Conference

Other

Other48th AIAA Fluid Dynamics Conference, 2018
CountryUnited States
CityAtlanta
Period6/25/186/29/18

Fingerprint

Hypersonic boundary layers
Momentum
Reynolds number
Cones
Acoustics
Hypersonic flow
Acoustic fields
Spatial distribution
Mach number
Geometry
Hot Temperature

ASJC Scopus subject areas

  • Aerospace Engineering
  • Engineering (miscellaneous)

Cite this

Tumuklu, O., Levin Fliflet, D., & Theofilis, V. (2018). Development of new techniques for studying unsteady behavior in hypersonic boundary layer interactions. In 2018 Fluid Dynamics Conference [AIAA 2018-3709] (2018 Fluid Dynamics Conference). American Institute of Aeronautics and Astronautics Inc, AIAA. https://doi.org/10.2514/6.2018-3709

Development of new techniques for studying unsteady behavior in hypersonic boundary layer interactions. / Tumuklu, Ozgur; Levin Fliflet, Deborah; Theofilis, Vassilis.

2018 Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics Inc, AIAA, 2018. AIAA 2018-3709 (2018 Fluid Dynamics Conference).

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

Tumuklu, O, Levin Fliflet, D & Theofilis, V 2018, Development of new techniques for studying unsteady behavior in hypersonic boundary layer interactions. in 2018 Fluid Dynamics Conference., AIAA 2018-3709, 2018 Fluid Dynamics Conference, American Institute of Aeronautics and Astronautics Inc, AIAA, 48th AIAA Fluid Dynamics Conference, 2018, Atlanta, United States, 6/25/18. https://doi.org/10.2514/6.2018-3709
Tumuklu O, Levin Fliflet D, Theofilis V. Development of new techniques for studying unsteady behavior in hypersonic boundary layer interactions. In 2018 Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics Inc, AIAA. 2018. AIAA 2018-3709. (2018 Fluid Dynamics Conference). https://doi.org/10.2514/6.2018-3709
Tumuklu, Ozgur ; Levin Fliflet, Deborah ; Theofilis, Vassilis. / Development of new techniques for studying unsteady behavior in hypersonic boundary layer interactions. 2018 Fluid Dynamics Conference. American Institute of Aeronautics and Astronautics Inc, AIAA, 2018. (2018 Fluid Dynamics Conference).
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