Partially Averaged Navier Stokes (PANS) Method for Turbulence Simulations: Theory and Practice

Conference paper
Part of the Notes on Numerical Fluid Mechanics and Multidisciplinary Design book series (NNFM, volume 117)

Abstract

Variable-resolution (VR) turbulence simulations possess ideal attributes for engineering applications as they purport to yield the best accuracy possible for any prescribed level of computational effort. However, at the current time, these accuracy-on-demand approaches are not considered theoretically rigorous. It is argued that pragmatic considerations that motivate the formulation of VR methods automatically preclude a theoretically rigorous approach. In this paper, we argue that VR approaches can be based on strong theoretical underpinnings without sacrificing numerical robustness and practical utility. We demonstrate that the partially-averaged Navier-Stokes (PANS) VR approach is based on strong physical and mathematical foundation and yet is robust enough for complex practical flows. We present important PANS theoretical attributes followed by results from complex flow computations.

Keywords

Large Eddy Simulation Direct Numerical Simulation Closure Model Swirl Number RANS Simulation 
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.

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Copyright information

© Springer-Verlag Berlin Heidelberg 2012

Authors and Affiliations

  1. 1.Aerospace Engineering DepartmentTexas A&M UniversityTexasUSA

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