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Computational Simulation of Flow over a Cylinder in Ground Effect, Using PANS

Nirooei, M ; Sharif University of Technology | 2013

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  1. Type of Document: Article
  2. Publisher: 2013
  3. Abstract:
  4. Recently, very large eddy simulation approach has attracted a great deal of attention among researchers. This approach can be thought of as an intermediate approach in flow field filtering view point compared with Direct Numerical Simulation and Reynolds-Averaged Navier-Stokes. One famous method to this approach is Partially Averaged Navier-Stokes. Early studies have demonstrated the capability of this technique in flow prediction; however, this method still needs to be evaluated under more flow conditions to ensure its reliable performance. In this study, the performance of PANS k-ω method in the simulation of turbulent flow around a cylinder with square cross section close to a flat surface, and at Reynolds number of 13200, has been evaluated. Flow around a cylinder provides a good criterion to assess capabilities of the proposed method. To do so, three different filters have been evaluated dynamically and compared with each other and Wilcox k-ω model. Results indicate that at such a Reynolds number, method is as accurate as k-ω method
  5. Keywords:
  6. PANS method ; Turbulent flow ; Very large eddy simulation ; Wilcox model
  7. Source: Life Science Journal ; Volume 10, Issue SUPPL 8 , 2013 , Pages 195-202 ; 10978135 (ISSN)
  8. URL: http://www.lifesciencesite.com/lsj/life1008s/027_19251life1008s_195_202.pdf