DISCUSSION OF EXTREMAL PRINCIPLES FOR TURBULENT FLOW BASED ON HYPOTHESIS OF MAXIMUM ENTROPY PRODUCTION

Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21220%2F16%3A00309595" target="_blank" >RIV/68407700:21220/16:00309595 - isvavai.cz</a>
Result on the web
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DOI - Digital Object Identifier
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Result language
angličtina
Original language name
DISCUSSION OF EXTREMAL PRINCIPLES FOR TURBULENT FLOW BASED ON HYPOTHESIS OF MAXIMUM ENTROPY PRODUCTION
Original language description
The formulation of fundamental thermodynamics inequality representing second law of thermodynamics is given. The entropy production is expressed in the flow of Newtonian fluid. An overall entropy production is evaluated for case of selected basic flow configurations like pipe flow and boundary layer. Both the principle of maximal rate of kinetic energy dissipation and the principle of maximal kinetic energy production are formulated and discussed. By using variational calculus it is shown that flow configurations in equilibrium of turbulent kinetic energy production and dissipation such as channel flow, pipe flow and boundary layer are consistent with principle of maximal entropy production. It is shown that laminar flow is consistent with principle of minimal entropy production.
Czech name
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Czech description
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Project
<a href="/en/project/GA14-08888S" target="_blank" >GA14-08888S: Control of flow fields by means of fluid oscillation</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Publication year
2016
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

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