[CenterRime]

For calculation of drag force and yaw moment of the hull we build the Python script.
moving and floating catamaran case solver

Main point is how we need understand the pressure data from OpenFoam?

For now that is we understand
1. For incompressible flow (p) it is pressure divided on density.
2. This pressure it is not Pascal or kgs/m2
3. It is not static pressure.
4. In script it is need to use date from surface cell area and normals.
https://www.phanquocthien.org/post-p...using-paraview
5. Para view filters:
# ExtractSurface
#Generate SurfaceNormals
#CellSize (Area)
#CellDataToPointData
6. Result raw data format:
#Point ID,Area,Normals_0,Normals_1,Normals_2,Points_0,Poi nts_1,Points_2,Points_Magnitude,p

Any advice or help how we need understand of OpenFoam pressure data for calculation of drag force and yaw moment of the hull will be really appreciated.

OSBL_GFD.zip
Flow_CFD.jpg