Open AccessHEAT EXCHANGE IN A PLANE CHANNEL IN A TURBULENT FLOW REGIME IN THE CASE OF SMALL VALUES OF PRANDTL NUMBER ACCORDING TO DATA OF DIRECT NUMERICAL SIMULATION
Author(s) -
Yurii G. Chesnokov
Publication year - 2021
Publication title -
izvestiâ sankt-peterburgskogo gosudarstvennogo tehnologičeskogo instituta (tehničeskogo universiteta)
Language(s) - English
Resource type - Journals
ISSN - 1998-9849
DOI - 10.36807/1998-9849-2020-56-82-57-60
Subject(s) - turbulent prandtl number , prandtl number , péclet number , mechanics , reynolds number , turbulence , direct numerical simulation , magnetic prandtl number , physics , plane (geometry) , flow (mathematics) , heat transfer , nusselt number , statistical physics , mathematics , geometry
Using the results obtained by the method of direct numerical simulation of the heat transfer process in a flat channel by various authors, it is shown that at small values of Prandtl number quite a few characteristics of the heat transfer process in a flat channel depend not on Reynolds and Prandtl numbers separately, but on Peclet number. Peclet number is calculated from the so-called dynamic speed