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Near-Wall Formulati...
Near-Wall Formulation of the Partially Averaged Navier-Stokes Turbulence Model
- Artikel/kapitelEngelska2011
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American Institute of Aeronautics and Astronautics (AIAA),2011
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LIBRIS-ID:oai:research.chalmers.se:bd046632-95ea-480e-b9f2-c453ef40925f
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https://research.chalmers.se/publication/152582URI
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https://doi.org/10.2514/1.j050967DOI
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Språk:engelska
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Sammanfattning på:engelska
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Ämneskategori:art swepub-publicationtype
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Ämneskategori:ref swepub-contenttype
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The variable-resolution partially averaged Navier-Stokes bridging strategy is applied to the four-equation k-epsilon-zeta-f turbulence model. In this approach, the popular two-equation model is enhanced with an additional transport equation for the velocity scale ratio zeta and an equation for the elliptic relaxation function f for the purpose of improved near-wall behavior. By using the elliptic relaxation technique to model the wall blocking effect, the new four-equation partially averaged Navier-Stokes model retains the simplicity of the previous two-equation partially averaged Navier-Stokes versions but significantly improves predictions in the near-wall region. The proposed partially averaged Navier-Stokes k-epsilon-zeta-f model is evaluated in a turbulent channel flow and flow around a three-dimensional circular cylinder mounted vertically on a flat plate. The results clearly show benefits of the improved near-wall modeling and extend partially averaged Navier-Stokes applicability to a broader range of smooth bluff-body separated flows.
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Krajnovic, Sinisa,1970Chalmers tekniska högskola,Chalmers University of Technology(Swepub:cth)sinisa
(författare)
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Girimaji, S.Texas A and M University
(författare)
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Pavlovic, Z.
(författare)
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Chalmers tekniska högskolaTexas A and M University
(creator_code:org_t)
Sammanhörande titlar
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Ingår i:AIAA Journal: American Institute of Aeronautics and Astronautics (AIAA)49:12, s. 2627-26361533-385X0001-1452
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