[ad1314]

Hello everyone!

I just started with convergeCFD. To get familiar with the package i am running a laminar flow simulation through a tapered pipe. I ran a steady case at first and the result converges after a few cycles. As a steady state monitor i set up the mass flow rate through the outlet. i have no grid scaling in the simulation, so converge should stop the simulation when the variation of the mass flow rate is within defined tolerances. But is seems like i making some kind of error and the simulation runs up to the last cycle even though the mass flow rate flattens after a few cycles (See picture). I have attached pictures of the monitor setup window, its input file and the mass flow rate plot form output file.

In addition i have tried changing the tolerance type to absolute, and running the simulation for longer cycles but the result was same. Thanks for your help.
regards

[rvigneshwar]

Originally Posted by ad1314

Hello everyone!

I just started with convergeCFD. To get familiar with the package i am running a laminar flow simulation through a tapered pipe. I ran a steady case at first and the result converges after a few cycles. As a steady state monitor i set up the mass flow rate through the outlet. i have no grid scaling in the simulation, so converge should stop the simulation when the variation of the mass flow rate is within defined tolerances. But is seems like i making some kind of error and the simulation runs up to the last cycle even though the mass flow rate flattens after a few cycles (See picture). I have attached pictures of the monitor setup window, its input file and the mass flow rate plot form output file.

In addition i have tried changing the tolerance type to absolute, and running the simulation for longer cycles but the result was same. Thanks for your help.
regards

Hi Adnan,

I received your email will communicate to you in email.