1). Allows for the use of zeroGradient or fixedFluxPressure for p_rgh. I am undecided which is more correct, so at least we have the option for both ways and the solver seamlessly deals with it through different modes of the use of adjustPhi.
2). A fix to the Schumann Grotzbach surface stress model to make it no have a divide by zero error when the flow speed above is zero.
Two updates:
1). Allows for the use of zeroGradient or fixedFluxPressure for p_rgh. I am undecided which is more correct, so at least we have the option for both ways and the solver seamlessly deals with it through different modes of the use of adjustPhi.
2). A fix to the Schumann Grotzbach surface stress model to make it no have a divide by zero error when the flow speed above is zero.