I hope I'm not repeating the same issue everyone has been asking but here it goes. I looked around and saw people asking about flowsim and surfaces and I noticed that the solution to that would either knit the surfaces or add thickness such as shelling or so. I'm trying to run a 3D simulation(Ihave already done the 2D for this body). So it meshes fine but once I hit run it gives me this error :
"There is no fluid volume in the project. Please check geometry or boundary conditions."
This is an external flow obviously and I'm following the typical tutorial presented on flow over a sphere in 3D which doesn't specify boundary conditions. Also my global goals are set for force in y-direction along with the velocities in both directions.
Any suggestions ? Thanks in advance!