Can I save flow time in Fluent

Prikane · July 15, 2016, 08:11

Dear colleagues,

I am working on transient analysis and I need to reach flow time of 0.8 seconds, but in order to satisfy Courant condition my time step size is 1e-7. As you can see I need very large number of time steps to reach flow time of 0.8 seconds, so I was wondering can I, at certain point of time, save my flow time and results, then turn off Fluent and then after while continue from the saved flow time?

Other option is to take lower size of time step in order to reach flow time of 0.8 seconds, but in that case Courant condition will not be 1, and I am afraid that will result with wrong results...

If you have any advice, I would be more then grateful.

Thanks in advance,

Prikane

LuckyTran · July 16, 2016, 15:13

Just save the data file... and then load it when you want to run again.

Prikane · July 17, 2016, 06:47

Dear LuckyTran,

Thank you very much for this information.

Best regards,

Prikane

July 15, 2016, 08:11	Can I save flow time in Fluent	#1
Prikane New Member Prikane Join Date: Mar 2016 Posts: 28 Rep Power: 10	Dear colleagues, I am working on transient analysis and I need to reach flow time of 0.8 seconds, but in order to satisfy Courant condition my time step size is 1e-7. As you can see I need very large number of time steps to reach flow time of 0.8 seconds, so I was wondering can I, at certain point of time, save my flow time and results, then turn off Fluent and then after while continue from the saved flow time? Other option is to take lower size of time step in order to reach flow time of 0.8 seconds, but in that case Courant condition will not be 1, and I am afraid that will result with wrong results... If you have any advice, I would be more then grateful. Thanks in advance, Prikane

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July 16, 2016, 15:13		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,761 Rep Power: 66	Just save the data file... and then load it when you want to run again.

July 17, 2016, 06:47		#3
Prikane New Member Prikane Join Date: Mar 2016 Posts: 28 Rep Power: 10	Dear LuckyTran, Thank you very much for this information. Best regards, Prikane