Overview🔗
- Solver: pimpleFoam
- Experimental case described by Martinuzzi and Tropea [46]
- Reynolds number based on the cube height of \(Re_h\) 40000
- Turbulence is modelled using the SA-IDDES model
- $FOAM_TUTORIALS/incompressible/pimpleFoam/LES/surfaceMountedCube
Mesh🔗
- 3D structured mesh created using blockMesh
Boundary conditions🔗
A precursor boundaryFoam calculation is used to set the inlet flow conditions
onto which turbulent content is superimposed using the turbulentDFSEMInlet
velocity condition.
Common fields🔗
- \(U\) 1 m/s
- \(h\) 1 m
- \(\nu\) 2.5e-5 m2/s
Velocity: U
| Patch | Condition | Value |
|---|---|---|
| Inlet | turbulentDFSEMInlet |
|
| Outlet | zeroGradient | |
| Walls | noSlip |
Pressure: p
| Patch | Condition | Value |
|---|---|---|
| Inlet | zeroGradient | |
| Outlet | fixedValue | 0 Pa (static) |
| Walls | zeroGradient |
Turbulence fields🔗
Turbulence viscosity: nut
| Patch | Condition | Value |
|---|---|---|
| Inlet | calculated |
|
| Outlet | calculated |
|
| Walls | nutUSpaldingWallFunction |
Spalart-Allmaras
Modified viscosity: nuTilda
| Patch | Condition | Value |
|---|---|---|
| Inlet | mappedFixedValue | |
| Outlet | zeroGradient | |
| Walls | zeroGradient |
Results🔗
The following images show examples of the instantaneous- and mean-velocity predictions
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Profiles at a series of x/h positions are presented in the following images, where the predictions are compared against the experimental data of Martinuzzi and Tropea [46]
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