[Bradley R]

Hi Everyone


I am new to fluent and I am currently busy with my honors project on a solar car. I am using air for my fluid domain with the temperature set to 298 K and pressure of 101325 Pa. In my boundary conditions I am using the pressure far field option. I am also using a density based solver and ideal gas law for air. When I set my reference values based on the pressure far field, it is giving me a density of 2.37 kg/m3 for the air. This means that I am getting a very high drag force and I'm not sure if this affects my Cd during computation?

I am also using k-epsilon as my solver. Is it necessary to check solver independence because my results with k-omega are quite different.

Why is it giving me such a high density as the reference value?

Also would you suggest using pressure based for speeds of 120km/h although air is compressible?

I would appreciate any ones help. Thank You


Bradley