[Sumit007]

Hello
i am using flow 3D for simulating sediment transport in hydro power head-works.
I am using multiple mesh block and their aspect ratio, inter block mesh size and boundary condition linked is very fine but I am still getting the error massage "pressure iteration did not converge". Now the problem is, for convergence criteria it requires very small time steps ( around 10^-4 sec), which abnormally increases my computational time so my questions are:
how can I increase the convergence criteria, so that the convergence criteria would meet in larger time steps no matter whatever it would cost in my accuracy of result.

note: i am using implicit SOR pressure solver

[Farzam]

Increase epsadj to 10 or 100

you can find it in Model setup/Numerics/Pressure solver options/convergence control/ multiplier for dynamically...