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https://hdl.handle.net/20.500.14279/8742
Τίτλος: | On the linear stability of turbulent plane strain flow in a rotating frame | Συγγραφείς: | Akylas, Evangelos Langer, C.A. Kassinos, S. C. Demosthenous, E. |
Major Field of Science: | Engineering and Technology | Field Category: | Civil Engineering | Λέξεις-κλειδιά: | Turbulent flows;Tensor methods;Rotating flows;Reynolds stress modeling;Isotropic turbulence | Ημερομηνία Έκδοσης: | 25-Ιου-2007 | Πηγή: | Physics of fluids (1994), 2007, vol. 19, no. 7, pp. 075108 | Volume: | 19 | Issue: | 7 | Start page: | 075108 | End page: | 075108 | Περιοδικό: | Physics of Fluids | Περίληψη: | We apply inviscid rapid distortion theory to the limiting hyperbolic case of turbulent plain strain flow in a rotating frame and investigate the dependence of the evolution of the turbulent kinetic energy on the frame rotation rate. We derive an analytical two-dimensional solution that, unlike previous oversimplified pressureless analyses, allows for an accurate approximation of the three-dimensional initially isotropic problem. From the analytical solutions, we determine the correct stability criterion for the evolution of the turbulent kinetic energy in this flow. Also, we calculate the asymptotic states of the turbulence, in terms of the normalized Reynolds stresses and structure dimensionality tensor components, which coincide with the exact three-dimensional numerical results. | URI: | https://hdl.handle.net/20.500.14279/8742 | ISSN: | 10897666 | DOI: | 10.1063/1.2750683 | Rights: | © American Institute of Physics | Type: | Article | Affiliation: | Institute of Environmental Research Stanford University |
Publication Type: | Peer Reviewed |
Εμφανίζεται στις συλλογές: | Άρθρα/Articles |
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