My use of SimCFD is limited to fluids in closed volumes and I am always concerned about results accuracy. Mesh design is a key to good accuracy. I recently learned that the mass flow rate for the input and output is actually logged in one of the multitude of files the program generates. Since mass should to be conserved, the values should be very close.
I'd like to see this information as an output in the message window when the run of a study finishes so that a user doesn't need to go looking for it. It could be reported as a ratio to imply model accuracy and printed in a red font if outside of parameters (preferably user selectable). I can see the message suggesting that a study is really not complete, even if the study fully converged. It could direct the user to further iterations, tightening of convergence parameters or the addition of mesh. I could also see it being used to suggest that the user incorporate the adaptation features (perhaps to avoid starting the study from 0 with an all new mesh).