to reset iteration number in FLUENT

August 15, 2006, 05:14

If u are fed up of the large iteration numbers. (this happens generally when parameter sensitivity of the same case file is set and iterated further.....)

Try this ...

Step1. Read Case/Data file for which the iteration number can be restarted

Step2. save data of all variables in the domain using INTERPOLATION. (File> Interpolate) For Eg. "xyz.ip"

Step3. Initialize the same case (Solve> Initialize> Int)so the iteration counter is set to 0

Step4. read the interpolated file (File> Interpolate> Read and Interpolate) for eg. "xyz.ip"

Step5. Start iterating !

Iterations number will start from 1, and also the output fles will be store with the same iteration number.

Thanks

happysimulant · August 15, 2006, 09:17

or just type solve/montiors/residual/reset/yes in the TUI!

August 16, 2006, 02:30

Sorry cadaei, ur method will just show the reset in iteration number, but if u see the contors, or write the history files u will get have the old iteration number.

SJSW · June 18, 2014, 02:16

Dear Mohan R,

is there any additional software that needs to be installed before I try this method?

Thank you.

Guera · August 16, 2017, 06:18

You can try this as well: File\Solution files then choose one of the saved iterations to restart calculation from and click "READ" to retrieve the solution, you can press "calculate" to continue calculations (Before this you should have done: Calculation Activities\Save every - choose a number of iterations (for ex. 50 to get solution saved every
50 iterations. By doing so, you'll be able to retrieve solutions at 50 - 100 - 150 - 200 .. etc iterations).

Hope this will be helpfull

Dr.TDAJones · July 25, 2019, 04:57

In Ansys Fluent V19.2 you can also resent the iteration count by clicking 'solution' tab, and under Reports click 'residuals'. In here change the 'iterations to store' to '0' and 'plot'. This appears to reset the iteration monitors.

August 15, 2006, 05:14	to reset iteration number in FLUENT	#1
Mohan R Guest Posts: n/a	If u are fed up of the large iteration numbers. (this happens generally when parameter sensitivity of the same case file is set and iterated further.....) Try this ... Step1. Read Case/Data file for which the iteration number can be restarted Step2. save data of all variables in the domain using INTERPOLATION. (File> Interpolate) For Eg. "xyz.ip" Step3. Initialize the same case (Solve> Initialize> Int)so the iteration counter is set to 0 Step4. read the interpolated file (File> Interpolate> Read and Interpolate) for eg. "xyz.ip" Step5. Start iterating ! Iterations number will start from 1, and also the output fles will be store with the same iteration number. Thanks

August 15, 2006, 09:17	Re: to reset iteration number in FLUENT	#2
cadaei Guest Posts: n/a	or just type solve/montiors/residual/reset/yes in the TUI! happysimulant, wc34071209 and DaveD! like this.

August 16, 2006, 02:30	Re: to reset iteration number in FLUENT	#3
Mohan R Guest Posts: n/a	Sorry cadaei, ur method will just show the reset in iteration number, but if u see the contors, or write the history files u will get have the old iteration number.

August 16, 2017, 06:18	Retrieve solution from a given iteration	#5
Guera New Member Kevin Join Date: Feb 2017 Posts: 2 Rep Power: 0	You can try this as well: File\Solution files then choose one of the saved iterations to restart calculation from and click "READ" to retrieve the solution, you can press "calculate" to continue calculations (Before this you should have done: Calculation Activities\Save every - choose a number of iterations (for ex. 50 to get solution saved every 50 iterations. By doing so, you'll be able to retrieve solutions at 50 - 100 - 150 - 200 .. etc iterations). Hope this will be helpfull

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June 18, 2014, 02:16		#4
SJSW Senior Member Join Date: Jun 2014 Location: Taiwan Posts: 100 Rep Power: 12	Dear Mohan R, is there any additional software that needs to be installed before I try this method? Thank you.

July 25, 2019, 04:57		#6
Dr.TDAJones New Member Tom Join Date: Jan 2019 Posts: 5 Rep Power: 7	In Ansys Fluent V19.2 you can also resent the iteration count by clicking 'solution' tab, and under Reports click 'residuals'. In here change the 'iterations to store' to '0' and 'plot'. This appears to reset the iteration monitors.