Reply To: Transonic Drag Under Predicted significantly

[Rob]

To clarify

• Pressure based is good to 2-3M so density based may not be needed. That shouldn't alter the result but may improve stability. 
• Compressability effects are linked to the fluid density, and not anything to do with turbulence. 

Otherwise, there are enough models run to know the solver will return the correct result. Have you checked the model scale? You won't be the first person to model something in mm or km as opposed to metres.