Drag and Lift forces extremely low
I am trying to perform an aerodynamic characterization of an aircraft. I created an unstructured mesh using Ansys ICEM and imported it to Fluent. The mesh is relatively good but still has a small number of bad quality cells.
I ran a case using an AOA of 6 degrees and monitored the residuals, including turbulent quantities and both CL and CD. The results I got for CL and CD were extremely low. For CL around 10E-4 and CD around 10-5. I've checked that the scaling of the mesh was correct, the references values were also correct, the boundary conditions were well defined, the force vectors were OK and that the surfaces I am monitoring the forces on were just the ones on the aircraft surface. I ran out of ideas! Can anyone please help me? Thank you in advance for your patience and time spent reading this long post. Regards, João |
Re: Drag and Lift forces extremely low
check the units
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Re: Drag and Lift forces extremely low
I checked the units too.
Thanks anyway! |
Re: Drag and Lift forces extremely low
I suggest that you model in Gambit using metres.
Sham. |
Re: Drag and Lift forces extremely low
i too found the same problem now, if you got any solution for this please help me.
Thank you in advance if have a solution. |
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