Effects of modeled terms in the Reynolds-stress transport equations

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A discussion of the origins and interpretation of various previously proposed models for the terms in the incompressible Reynolds-stress equation is given. It is hoped that the interpretations will provoke thoughts that will help in the future modeling of Reynolds-stress transport equations. Different forms of the closed Reynolds-stress equation have been solved numerically for the given mean velocity field of the wake flow behind a flat plate at a Reynolds number of 1000. A finite-difference/finite-volume collocation scheme was used to approximate the spatial derivatives, which were implemented in a time-marching scheme. The numerical time integration produced values for the six ... continued below

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91 p.

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Linn, R.R. December 31, 1993.

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Description

A discussion of the origins and interpretation of various previously proposed models for the terms in the incompressible Reynolds-stress equation is given. It is hoped that the interpretations will provoke thoughts that will help in the future modeling of Reynolds-stress transport equations. Different forms of the closed Reynolds-stress equation have been solved numerically for the given mean velocity field of the wake flow behind a flat plate at a Reynolds number of 1000. A finite-difference/finite-volume collocation scheme was used to approximate the spatial derivatives, which were implemented in a time-marching scheme. The numerical time integration produced values for the six independent Reynolds-stress components, the turbulent kinetic energy decay rate, and the turbulent length scale for each of the models tried. The results of the different cases were compared and some conclusions were drawn on the effects of the various investigated modeled terms.

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91 p.

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OSTI as DE96015167

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  • Other Information: TH: Thesis (Ph.D.)

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  • Other: DE96015167
  • Report No.: LA-SUB--96-20
  • Grant Number: W-7405-ENG-36
  • Office of Scientific & Technical Information Report Number: 374160
  • Archival Resource Key: ark:/67531/metadc675810

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  • December 31, 1993

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  • July 25, 2015, 2:20 a.m.

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  • July 28, 2016, 7:32 p.m.

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Linn, R.R. Effects of modeled terms in the Reynolds-stress transport equations, thesis or dissertation, December 31, 1993; New Mexico. (digital.library.unt.edu/ark:/67531/metadc675810/: accessed September 20, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.