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Stabilization of th...
Stabilization of the hypersonic boundary layer by finite-amplitude streaks
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Ren, Jie (författare)
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Fu, Song (författare)
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- Hanifi, Ardeshir (författare)
- KTH,SeRC - Swedish e-Science Research Centre,Mekanik,Linné Flow Center, FLOW,Swedish Def Res Agcy FOI, Stockholm, Sweden
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(creator_code:org_t)
- American Institute of Physics (AIP), 2016
- 2016
- Engelska.
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Ingår i: Physics of fluids. - : American Institute of Physics (AIP). - 1070-6631 .- 1089-7666. ; 28:2
- Relaterad länk:
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https://urn.kb.se/re...
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visa fler...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- Stabilization of two-dimensional disturbances in hypersonic boundary layer flows by finite-amplitude streaks is investigated using nonlinear parabolized stability equations. The boundary-layer flows at Mach numbers 4.5 and 6.0 are studied in which both first and second modes are supported. The streaks considered here are driven either by the so-called optimal perturbations (Klebanoff-type) or the centrifugal instability (Gortler-type). When the streak amplitude is in an appropriate range, i.e., large enough to modulate the laminar boundary layer but low enough to not trigger secondary instability, both first and second modes can effectively be suppressed. (C) 2016 AIP Publishing LLC.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Teknisk mekanik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Applied Mechanics (hsv//eng)
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- art (ämneskategori)
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