Attempt to cast type zeroGradient to type nutWallFunction
Summary
When trying to simulate turbulent flow over open terrain using a k-epsilon model and RAS turbulence with inlet and outlet as type patch, the solver begins to solve for ux, uy, uz it then fails with the warning 'FOAM FATAL ERROR: Attempt to cast type zeroGradient to type nutWallFunction
However when the patch types are changed to wall, the solution begins to run. As I am trying to simulate turbulent flow over terrain, these patch types are not suitable
Steps to reproduce
The boundary file setup is seen at this link https://www.cfd-online.com/Forums/openfoam-solving/232526-attempt-cast-type-zerogradient-type-nutwallfunction.html.
It is being simulated through a simple cuboid blockMesh with an STL file connected via snappyHexMesh, however it does not run, even without the STL turbulenceProperties
Example case
What is the current bug behaviour?
It creates an error when I try and have any of the patch types as 'zeroGradient' inside the nut file when inlet, outlet or top type is type patch boundary
What is the expected correct behavior?
It should run without cancelling as type patch, and making the type be wall in order to run
Relevant logs and/or images
dimensions [0 2 -1 0 0 0 0];
internalField uniform 0;
boundaryField { #include "include/ABLConditions"
inlet
{
type zeroGradient;
//value uniform 0.0;
}
outlet
{
type zeroGradient;
//value uniform 0;
}
top
{
type zeroGradient;
//value uniform 0;
}
DuneField
{
type nutkAtmRoughWallFunction;
z0 $z0;
value uniform 0;
}}
Environment information
- OpenFOAM version :7
- Operating system :ubuntu
- Hardware info :
- Compiler :
Possible fixes
FOAM FATAL ERROR:Attempt to cast type zeroGradient to type nutWallFunction
From function To& Foam::refCast(From&) [with To = const Foam::nutWallFunctionFvPatchScalarField; From = const Foam::fvPatchField] in file /home/ubuntu/OpenFOAM/OpenFOAM-7/src/OpenFOAM/lnInclude/typeInfo.H at line 114'
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