What residuals are?
 

I know that residual tell about the solution convergence, but how to define them, and understand that definition?

Re: What residuals are?
 

After solving N.S eqautions there is some imbalance. This is what residual are. They are the imbalance left inside cell. It should be very low like 0.0001 .

best regards john

Re: What residuals are?
 

u vcan define in convergence criteria of any commercial code .

Re: What residuals are?
 

Thanks,

And what if the residual is more than 0.0001 (oscillation above)?