RNG-based turbulence transport approximations with applications to transonic flows

Luigi Martinelli, Victor Yakhot

Research output: Contribution to conferencePaperpeer-review

5 Scopus citations


An algebraic eddy viscosity model, as well as a differential two equation k-ε model based on the Renormalization Group Theory of turbulence are proposed for closure of the compressible Reynolds averaged equations. The first model, although free from uncertainties related to the determination of modeling constants, still requires the specification of a length-scale which leads to a reduction of the generality of the model. The second model proposed is far more general. Not only does it remove the need for the determination of a length scale, but it also incorporates the low Reynolds number modeling in a form that does not depend directly on information about the wall location. This feature makes the RNG-based K-ε model suitable for calculation on unstructured meshes. The applicability of the RNG based turbulence transport approximations for mildly compressible flows is demonstrated by the successful simulation of several transonic flows.

Original languageEnglish (US)
StatePublished - Jan 1 1989
Externally publishedYes
Event9th Computational Fluid Dynamics Conference, 1989 - Buffalo, United States
Duration: Jun 13 1989Jun 15 1989


Other9th Computational Fluid Dynamics Conference, 1989
Country/TerritoryUnited States

All Science Journal Classification (ASJC) codes

  • Mechanical Engineering
  • Fluid Flow and Transfer Processes


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