Contribution towards the second-moment closure modelling of separating turbulent flows (Q1129603)
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scientific article; zbMATH DE number 1192823
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Contribution towards the second-moment closure modelling of separating turbulent flows |
scientific article; zbMATH DE number 1192823 |
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Contribution towards the second-moment closure modelling of separating turbulent flows (English)
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26 April 1999
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We analyze numerically six cases of turbulent flows over backward-facing steps and in sudden plane and axisymmetric expansions in a range of Reynolds numbers, using two variants of high-Re number second-moment closures and a new model which accounts separately for low-Re number, wall blockage and pressure reflection effects, thus allowing integration up to the wall. Attention was focused on a back-step flow at a step-height Reynolds number of 5000, for which detailed experimental data are available.
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backward-facing steps
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sudden plane and axisymmetric expansions
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wall blockage
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pressure reflection effects
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