Could anyone please advice on the above mentioned problem please. I'm trying to obtain the structural responses of the boat in the heave and pitch directions (translational motion in the y axis and rotational motion in the z if the screen is the x-y plane). Please see below the details of my simulation:
The above mesh is created with min orthogonality of 0.57 and max skewness of 0.603. Edge sizing is added for the Hull. the geometry is sliced so that the hull is moving through water.
UDF file is below:
Models used are Multiphase VOF with open channel flow, open channel wave BC and implicit body force enabled and viscous model of k-omega with SST.
Boundary conditions are as follow:
water_inlet: velocity inlet with open channel wave BC enabled and details of wave inserted.
air_inlet: velocity inlet
water_outlet: pressure outlet with open channel wave BC enabled and details of wave inserted.
air_outlet: pressure outlet
except the interface line is defined as a wall and given the same udf as the hull but with passive enabled.
moving mesh is with 0.5 spring factor and remeshing details are from mesh scale info.
time step is 0.01.
I keep getting negative cell volume detected error.
could you please advice.