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Reynolds-Averaged Governing Equations and Closure Problem

  • Anupam DewanEmail author
Chapter
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Abstract

This chapter presents a widely used approach to model turbulent flows, i.e., to consider the time-averaged governing equations. It is shown that though this approach leads to a considerable simplification, an undesirable outcome is the closure problem, i.e., the number of unknowns exceeding the number of equations available. The closure problem sets the ground for a wide range and variety of RANS equations based turbulence models available in the literature.

Keywords

Large Eddy Simulation Reynolds Stress Flow Property Closure Problem Turbulent Shear Stress 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

References

  1. Hanjalic K (2005) Will RANS survive LES? A view of perspectives. Trans ASME J Fluids Eng 127:831–839CrossRefGoogle Scholar
  2. Reynolds O (1895) On the dynamical theory of incompressible viscous fluids and the determination of criterion. Phil Trans Royal Soc Lond Ser A 186:123zbMATHCrossRefGoogle Scholar

Copyright information

© Springer-verlag Berlin Heidelberg 2011

Authors and Affiliations

  1. 1.Department of Applied MechanicsIndian Institute of Technology, DelhiHauz Khas India

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