[SWLABeardedRbow]

Hi, I am very new to ansys fluent.


I believe I am having issues simulating 2D subsonic flow through a nozzle. My residuals plot for velocities and continuity does not seem to significantly decrease and remains constant (horizontal/flat). From what I have read, convergence of residual is satisfactory with a few orders of magnitude, which is not occurring here.

From various forums and google searches, I have found that convergence issues mainly arise from mesh quality, possibly incorrect boundary conditions, and schemes utilized. I have tried to refine my mesh near the nozzle wall and review my boundary conditions, but still have not had much success. I've attached a number of screen shots of my setup and results of running simulation.

Solver type - pressure based
velocity inlet w/ magnitude set, velocity outlet with magnitude set (negative number for flow leaving)


I'm kind of stuck on ideas on what to tweak or if there is something I'm missing, I can't seem to find it.


Appreciate any help or advice!