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Nonequilibrium Ther...
Nonequilibrium Thermodynamics and the Optimal Path to Turbulence in Shear Flows
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- Monokrousos, Antonios (författare)
- KTH,Stabilitet, Transition, Kontroll,Linné Flow Center, FLOW
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Bottaro, Alessandro (författare)
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- Brandt, Luca (författare)
- KTH,Mekanik,Linné Flow Center, FLOW
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Di Vita, Andrea (författare)
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- Henningson, Dan S. (författare)
- KTH,Stabilitet, Transition, Kontroll,Linné Flow Center, FLOW
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(creator_code:org_t)
- 2011
- 2011
- Engelska.
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Ingår i: Physical Review Letters. - 0031-9007 .- 1079-7114. ; 106:13, s. 134502-
- Relaterad länk:
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https://urn.kb.se/re...
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https://doi.org/10.1...
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Abstract
Ämnesord
Stäng
- We determine the initial condition on the laminar-turbulent boundary closest to the laminar state using nonlinear optimization for plane Couette flow. Resorting to the general evolution criterion of nonequilibrium systems we optimize the route to the statistically steady turbulent state, i.e., the state characterized by the largest entropy production. This is the first time information from the fully turbulent state is included in the optimization procedure. We demonstrate that the optimal initial condition is localized in space for realistic flow domains.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik -- Strömningsmekanik och akustik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering -- Fluid Mechanics and Acoustics (hsv//eng)
Nyckelord
- maximum-entropy production
- pipe-flow
- transition
- dissipation
- growth
- waves
- Fluid mechanics
- Strömningsmekanik
Publikations- och innehållstyp
- ref (ämneskategori)
- art (ämneskategori)
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