Analytical model of the time developing turbulent boundary layer |
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| Authors: | V S L’vov A Pomyalov A Ferrante S Elghobashi |
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| Institution: | (1) Department of Chemical Physics, The Weizmann Institute of Science, Rehovot, 76100, Israel;(2) Department of Mechanical and Aerospace Engineering, University of California, Irving, CA 92697, USA;(3) Graduate Aeronautical Laboratories, California Institute of Technology, Pasadena, CA 91125, USA |
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| Abstract: | An analytical model for the time-developing turbulent boundary layer (TD TBL) over a flat plate is presented. The model provides
explicit formulae for the temporal behavior of the wall-shear stress and both the temporal and spatial distributions of the
mean streamwise velocity, the turbulence kinetic energy and Reynolds shear stress. The resulting profiles are in good agreement
with the DNS results of spatially-developing turbulent boundary layers at momentum thickness Reynolds numbers equal to 1430
and 2900 5–7]. Our analytical model is, to the best of our knowledge, the first of its kind for TD TBL.
The text was submitted by the authors in English. |
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