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Near-Wall Formulati...
Near-Wall Formulation of the Partially Averaged Navier-Stokes Turbulence Model
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Basara, B. (författare)
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- Krajnovic, Sinisa, 1970 (författare)
- Chalmers tekniska högskola,Chalmers University of Technology
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- Girimaji, S. (författare)
- Texas A and M University
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Pavlovic, Z. (författare)
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(creator_code:org_t)
- American Institute of Aeronautics and Astronautics (AIAA), 2011
- 2011
- Engelska.
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Ingår i: AIAA Journal. - : American Institute of Aeronautics and Astronautics (AIAA). - 1533-385X .- 0001-1452. ; 49:12, s. 2627-2636
- Relaterad länk:
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http://dx.doi.org/10...
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https://research.cha...
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https://doi.org/10.2...
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Abstract
Ämnesord
Stäng
- 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.
Ämnesord
- TEKNIK OCH TEKNOLOGIER -- Maskinteknik (hsv//swe)
- ENGINEERING AND TECHNOLOGY -- Mechanical Engineering (hsv//eng)
Nyckelord
- meshes
- 2005
- phys fluids
- computer methods in applied mechanics and engineering
- 1995
- flow structure
- v238
- p325
- v17
- aouat b
- 2001
- heat-transfer
- mirdzic i
- finite circular-cylinder
- zulj v
- 1992
- journal of fluid mechanics
- 20012593 aiaa
- p1
- large-eddy simulation
- rmano m
Publikations- och innehållstyp
- art (ämneskategori)
- ref (ämneskategori)
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