Convergence Problem

AAJ

Hi all!!

I am running a coupled solver for an inviscid flow simulation, my geometry is very much complex.

I am using pressure far field and pressure outlet boundry conditions. Apart from residuals am monitoring Cl and Cd for the problem. Cl and Cd seems to be preety constant with max 0.5 percent variation from the max value.

The residuals of x,y,z velocity, continuity and energy are not converging. They come down to a max of 1e-2 and then they start going up again, or they fluctuate arround some mean value.

My question is that: Can i take this solution as a converged one? What are the factors that may exffect convergence of the problem?