Reply To: ROV propeller simulation

[CFD_Friend]

Hi Lahiru,

Some things you can check on are;

• Check if the mesh statistics look okay. You can find this in the OUT file(the message shown on the right side of the solver manager) Make sure that many of the mesh parameters are within acceptable limits.
• Instead of Opening boundary condition, try using pressure inlet and pressure outlet boundary conditions as these are more robust. Try extending the inlet and outlet away from the propeller to get optimum results with such boundary conditions.
• Using Alternate rotation model can also be good advice. The alternate rotation model is generally recommended, especially for axial fans. In most realistic flow situations, this model reduces (or at least will not increase) numerical errors.
• Are the hub and blade assigned as rotating walls? If not assign them as rotating walls.