Consider revisions to the model
• Are physical models appropriate?
– Is flow turbulent?
– Is flow unsteady?
– Are there compressibility effects?
– Are there 3D effects?
– Are boundary conditions correct?
• Is the computational domain large enough?
– Are boundary conditions appropriate?
– Are boundary values reasonable?
• Is grid adequate?
– Can grid be adapted to improve results?
– Does solution change significantly with adaption, or is the solution
grid independent?
– Does boundary resolution need to be improved?