Multigrid computation of stratified flow over two-dimensional obstacles (Q1372002)
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scientific article; zbMATH DE number 1084040
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Multigrid computation of stratified flow over two-dimensional obstacles |
scientific article; zbMATH DE number 1084040 |
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Multigrid computation of stratified flow over two-dimensional obstacles (English)
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6 November 1997
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A robust multigrid method for the incompressible Navier-Stokes equations is applied to the computation of viscous flow over obstacles in a bounded domain under conditions of neutral stability and stable density stratification. Two obstacle shapes have been used, namely a vertical barrier, for which the grid is Cartesian, and a smooth cosine-shaped obstacle, for which a boundary-conforming transformation is incorporated. Results are given for laminar flows at low Reynolds numbers and turbulent flows at a high Reynolds number, when a simple mixing length turbulence model is included.
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neutral stability
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vertical barrier
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smooth cosine-shaped obstacle
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boundary-conforming transformation
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laminar flows
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turbulent flows
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mixing length turbulence model
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0.9460085
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0.93186504
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0.89717114
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0.88540566
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0.8839465
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0.88323015
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0.88288903
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