[cfang]

Hello.. I need help here.. Im doing a project which requires me to do turbulence modelling for an airfoil. Im a beginner in this field, just learn gambit and fluent.

As my 1st task, i was ask by my supervisor to compare the best mesh for my airfoil. Use fluent to get the Cl vs alpha and also the required contours. However, after running analysis using fluent for 3 different meshes, i realize that my data is very different from experimental data which i obtained from internet.

Im doing Naca 0012, so from internet, the stall angle for 2x10^6 is around 10-15 deg. However, for my mesh, i run the analysis until 25 deg, but the Cl is still not decreasing.

Can anyone help me and tell me what is wrong with my mesh? Thanx alot..