Hello,nnMy turbofan is solid but the control volume is air. I have used ideal gas law for density and Sutherland for viscosity. nBelow shows the contours vector plot. For some reason it does not flow around the Turbofan, i don't know why it doesn't do that. nnHere is the image of the cell zone condition:nnnHere is the Boundary Condition:nnnhere is the Inlet BC: nnand here is the outlet pressure:nnHere is the mesh:nnnI know the mesh control volume needs to be increased but for some reason the flow does not recognise that the solid turbofan is there. I really need to just show how the air flows around the nacelle inlet, i have been struggling to do this, any help would be grateful.Regardsnn