Case description


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  


Modified viscosity: nuTilda

Patch Condition Value
Inlet mappedFixedValue  
Outlet zeroGradient  
Walls zeroGradient  


The following images show examples of the instantaneous- and mean-velocity predictions

Velocity Velocity
Mean velocity Mean velocity

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]

x/h = -1 x/h = -0.5
x/h = 1 x/h = 1.5
x/h = 2.5 x/h = 4