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Steady state monitor does not stop simulation

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Old   May 25, 2021, 15:38
Default Steady state monitor does not stop simulation
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Adnan
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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
Attached Images
File Type: png monitor.PNG (38.6 KB, 9 views)
File Type: png file.PNG (11.4 KB, 8 views)
File Type: png plot.png (28.7 KB, 8 views)
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Old   May 25, 2021, 16:15
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Vigneshwar Ravisankar
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Quote:
Originally Posted by ad1314 View Post
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.
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