Journal article
A Note on the Numerical Treatment of the k-epsilon Turbulence Model
International journal of computational fluid dynamics, Vol.14(3), pp.201-209
01/01/2001
DOI: 10.1080/10618560108940724
Abstract
Numerical solution of the equations arising from the κ mdash; ε turbulence model has difficulties inherent to nonlinear convection-reaction-diffusion equations with strong reaction terms, resulting in that numerical schemes easily become unstable. We present a formulation that stresses on the robustness of the solution method, tackling common problems that produce instability. The main contribution concerns the loss of positivity of κ and ε, which is addressed by acting on the coefficients of the reaction and diffusion terms rather than on the turbulent variables themselves. In addition, a linearized implicit, non-iterative, treatment of the wall law is proposed.
Details
- Title: Subtitle
- A Note on the Numerical Treatment of the k-epsilon Turbulence Model
- Creators
- ADRIAN J LEW† - Centro Atómico Bariloche and Instituto BalseiroGUSTAVO C BUSCAGLIA - Centro Atómico Bariloche and Instituto BalseiroPABLO M CARRICA - Centro Atómico Bariloche and Instituto Balseiro
- Resource Type
- Journal article
- Publication Details
- International journal of computational fluid dynamics, Vol.14(3), pp.201-209
- Publisher
- Taylor & Francis Group
- DOI
- 10.1080/10618560108940724
- ISSN
- 1061-8562
- eISSN
- 1029-0257
- Language
- English
- Date published
- 01/01/2001
- Academic Unit
- Mechanical Engineering; IIHR--Hydroscience and Engineering
- Record Identifier
- 9984064117802771
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