How to define hRef for a variable bottom (bathymetry) ?

cfd_saad · August 22, 2022, 10:53

Hi foamers,

I am using interFoam to study a breakwater with a variable bathymetry so the reference of the free surface changes depending on the location.

My free surface at the inlet is at 32m and it decreases until 10m at the outlet.

In p and p_rgh it does include hRef (gh = g*hRef), I have put hRef=32m (constant) but I am getting high pressures so I think I need to have a variable hRef depending on the location, how can I manage to do this ?

Thanks!!

cfd_saad · August 24, 2022, 04:44

the idea is to substract the instantaneous hydrostatic pressure at the wave impact on the wall, any ideas ?

August 22, 2022, 10:53	How to define hRef for a variable bottom (bathymetry) ?	#1
cfd_saad New Member Join Date: May 2022 Posts: 29 Rep Power: 3	Hi foamers, I am using interFoam to study a breakwater with a variable bathymetry so the reference of the free surface changes depending on the location. My free surface at the inlet is at 32m and it decreases until 10m at the outlet. In p and p_rgh it does include hRef (gh = g*hRef), I have put hRef=32m (constant) but I am getting high pressures so I think I need to have a variable hRef depending on the location, how can I manage to do this ? Thanks!!

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August 24, 2022, 04:44		#2
cfd_saad New Member Join Date: May 2022 Posts: 29 Rep Power: 3	the idea is to substract the instantaneous hydrostatic pressure at the wave impact on the wall, any ideas ?