JIRKOVSKÝ, Luděk and L. Ma BO-OT. Laminar-turbulent transition in Taylor-Couette flow from a molecule dependent transport equation. Physics Letters A. AMSTERDAM, NETHERLANDS: ELSEVIER, vol. 408, AUG 27 2021, p. 1 - 4, 5 pp. ISSN 0375-9601. 2021.
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Basic information
Original name Laminar-turbulent transition in Taylor-Couette flow from a molecule dependent transport equation
Authors JIRKOVSKÝ, Luděk (203 Czech Republic, guarantor, belonging to the institution) and L. Ma BO-OT.
Edition Physics Letters A, AMSTERDAM, NETHERLANDS, ELSEVIER, 2021, 0375-9601.
Other information
Original language English
Type of outcome Article in a journal
Field of Study 10305 Fluids and plasma physics
Country of publisher Netherlands
Confidentiality degree is not subject to a state or trade secret
WWW URL
RIV identification code RIV/75081431:_____/21:00002093
Organization unit Institute of Technology and Business in České Budějovice
UT WoS 000658810100001
Keywords in English Modified NSE; Taylor-Couette; Phase transition; Laminar-turbulent
Tags FYS, RIV21, WOS
Changed by Changed by: Mgr. Nikola Petříková, učo 28324. Changed: 24/6/2021 17:07.
Abstract
In this Letter, a previously utilized higher-order momentum transport equation obtained using a projection-perturbation formalism from the most general equation of classical transport for the N-particle distribution function, the Liouville equation, is applied to the Taylor-Couette flow, e.g. fluid flow enclosed between two concentric cylinders where the inner cylinder is rotating with some constant speed and the outer cylinder is stationary. The results of the numerical simulation of azimuthal velocity profiles are analyzed to see how an initial laminar velocity profile evolves in time into a velocity profile characteristic for turbulent flow. Although the experiments were not very accurate, they all point to the near uniformity of the velocity profiles in turbulent regime in the central region of the annulus. Using the time evolution of the velocity profiles, we further investigate possibility of observing double phase transition from a laminar to turbulent regime.
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