pressure iteration didnt converge
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how can I edit this error? what is that mean?
Solver Messages: pressure iteration did not converge in itmax= 100 iterations at time= 1.03537E02 cycle= 90 iter= 100 nocon= 0 epsi= 4.083E01 maximum residual= 5.539E01 at i= 124 j= 2 k= 70 block= 5 convective flux exceeded stability limit at t= 3.2759E02 cycle= 306 iter= 5 delt= 3.4220E05 mesh block 5 restarting cycle with smaller time step maximum failure ratio = 2.95606E+00 is in zcoordinate direction at cell ( 233, 2, 215) mesh block 5 
Dear Melek
The solver, solve 100 times an iteration, if the stop criteria accepted then go to next iteration, but if it unaccepted so stop the solving. So, no way to get the accurate simulation results. Regards, M. R. sharifabadi 
Thank you Sharifabadi. so do you have any idea how can I correct the mistake... I tried to increase GMPRES number and decrease messh sell sizes. However the simulation runned with 2 gb and again took this message. pressure iteration didnt converse itmax =100

As far as I know, there is no way to take away from this problems, restart your simulation from first ( call STL files ) and do simulation again may you haven't problem.
Don't hesitate if you have any question. this is my email address: mo.sharifabadi@gmail.com 
Have you corrected you problem? i am stuck in such a situaiton too

Do you have different mesh blocks in your model ?
It can be due to connection problems between mesh blocks (or bad cell size ratio). 
Quote:

If you have thin thickness, it could be interesting to add mesh planes.
Usually, a list of messages as your comes from bad mesh conditions. When you analyze results, geometry visualization is good ? 
Thank you for answers, mesh and geo was crossed I thınk but only I wrote relaxatıon factor = 0,5 and downed tıme step all problems are over

And mesh was strong I thınk chanced mesh desıgn

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thank you for answers

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