Restart CFX Analysis from last time step

Aashi171185 · May 14, 2019, 02:16

Sir i am performing the sloshing simulation i calculated the time to complete the simulation which is 3 days but when it reaches 2.5 day my electric power suddenly went off then on after couple of minutes
Sir i want to know is it possible to restart the analysis from the last time step where the power shut down occur please help me

AtoHM · May 14, 2019, 03:26

This will be possible provided you created some full back-up files or results files while running. Then you can rerun using the -ini option when calling the solver.
https://www.sharcnet.ca/Software/Ans.../i1304960.html

Aashi171185 · May 15, 2019, 07:50

thanks for your kind response can you please make it more clear in my situation when the analysis going on it also create the back up file folder but how to start from that back up as there is no option in cfx solver when i opened it as when i started it starts from beginning
please help me out

evcelica · May 15, 2019, 16:37

Did you write and .full or .bak files? Did your transient results you were writing have all variables? What results do you have? Just choose one of these files for your initial conditions if you wrote any. If you didn't, then you are SOL, and will have to start from the beginning.

Just be sure to write backup files during transient simulations.

Aashi171185 · May 18, 2019, 08:46

thanks for you kind reply erik sir yes i have wrote the backup file but when it restart from that particular time step that is back up file it runs up to to simulation end time but when i check the results it only shows result from backup file lets say time step of back up is 120 it shows results from 120 onwards why is it so can any one here to help plz

May 14, 2019, 02:16	Restart CFX Analysis from last time step	#1
Aashi171185 Member Aashi Join Date: Dec 2018 Posts: 43 Rep Power: 7	Sir i am performing the sloshing simulation i calculated the time to complete the simulation which is 3 days but when it reaches 2.5 day my electric power suddenly went off then on after couple of minutes Sir i want to know is it possible to restart the analysis from the last time step where the power shut down occur please help me

May 15, 2019, 07:50	restarting Cfx Analysis	#3
Aashi171185 Member Aashi Join Date: Dec 2018 Posts: 43 Rep Power: 7	thanks for your kind response can you please make it more clear in my situation when the analysis going on it also create the back up file folder but how to start from that back up as there is no option in cfx solver when i opened it as when i started it starts from beginning please help me out

May 18, 2019, 08:46	Run from back up file	#5
Aashi171185 Member Aashi Join Date: Dec 2018 Posts: 43 Rep Power: 7	thanks for you kind reply erik sir yes i have wrote the backup file but when it restart from that particular time step that is back up file it runs up to to simulation end time but when i check the results it only shows result from backup file lets say time step of back up is 120 it shows results from 120 onwards why is it so can any one here to help plz

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
courant number increases to rather large values	6863523	OpenFOAM Running, Solving & CFD	22	July 5, 2023 23:48
Time Step Continuity Errors simpleFoam	Dorian1504	OpenFOAM Running, Solving & CFD	1	October 9, 2022 09:23
[Other] Contribution a new utility: refine wall layer mesh based on yPlus field	lakeat	OpenFOAM Community Contributions	58	December 23, 2021 02:36
Star cd es-ice solver error	ernarasimman	STAR-CD	2	September 12, 2014 00:01
mixerVesselAMI2D's mass is not balancing	sharonyue	OpenFOAM Running, Solving & CFD	6	June 10, 2013 09:34

May 14, 2019, 03:26		#2
AtoHM Senior Member M Join Date: Dec 2017 Posts: 642 Rep Power: 12	This will be possible provided you created some full back-up files or results files while running. Then you can rerun using the -ini option when calling the solver. https://www.sharcnet.ca/Software/Ans.../i1304960.html

May 15, 2019, 16:37		#4
evcelica Senior Member Erik Join Date: Feb 2011 Location: Earth (Land portion) Posts: 1,167 Rep Power: 23	Did you write and .full or .bak files? Did your transient results you were writing have all variables? What results do you have? Just choose one of these files for your initial conditions if you wrote any. If you didn't, then you are SOL, and will have to start from the beginning. Just be sure to write backup files during transient simulations.