[hocon]

Hello,
Now I am simulating 2D-NACA 0012 with 0-degree angle of attack. I get drag coefficient is 10 times higher than the practical result. The simulation is 5e-2 and the practical is 6.7e-3. Do you have any suggestion to improve it? Thanks

[AHF]

Originally Posted by hocon

Hello,
Now I am simulating 2D-NACA 0012 with 0-degree angle of attack. I get drag coefficient is 10 times higher than the practical result. The simulation is 5e-2 and the practical is 6.7e-3. Do you have any suggestion to improve it? Thanks

1.make sure about grid independence
2.set references value correctly
3.make sure about turbulent model that choose correctly depend on your simulation

[hocon]

My mesh get very good with skwewness 0.3 and orthogonal Quality 0.6 and 95000 nodes. The lift coefficient is mosly zero but I still cannot get the correct drag coefficent. Do you have any detail suggestion?