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Initializing simulation from previous results help |
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April 27, 2010, 07:21 |
Initializing simulation from previous results help
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#1 |
Senior Member
Stuart
Join Date: Jul 2009
Location: Portsmouth, England
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Hi,
The other day I ran a simulation with the first-order accurate method. Now I'd like to use those results (it's on the same mesh with the same boundary conditions) to initialize a run with a high-order accurate method. I've checked the User Guide but I cannot see how to initialize a run with another saved simulation result file. Can anyone tell me how? Thanks |
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April 27, 2010, 08:57 |
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#2 |
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Leonardo Giampani Morita
Join Date: Apr 2009
Location: Paris, France
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If you use the same mesh, you can open the same .dat file and "continue" your simulation with new set up.
If this doesn't work for any reason, you can open your first case, write an .ip file (File > Interpolate > Write data) and then read it for the new one (File > Interpolate > Read). |
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April 27, 2010, 09:17 |
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#3 |
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Stuart
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Thank you.
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June 13, 2011, 14:05 |
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#4 |
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Saima
Join Date: Apr 2009
Location: Canada
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I am working on CFX and my mesh every time change a bit and i want to use previous result file.
Could you pls help me out...how can i do this? Best Regards,
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Best Redards, Saima Last edited by Saima; June 13, 2011 at 14:55. Reason: wrong spell |
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June 13, 2011, 19:19 |
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#5 |
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Pranab N Jha
Join Date: Nov 2009
Location: Houston, TX
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You should use a .ip file as suggested by Leonardo. It does not matter if your mesh resolution changes a bit, this interpolation file will interpolate the values at your current nodes. I also had similar issue and I finally resolved it.
http://www.cfd-online.com/Forums/flu...ther-case.html |
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June 13, 2011, 20:27 |
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#6 |
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Saima
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Location: Canada
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Thank you very much for your reply.
I have one more query. I want to stope solver by the efficiency smoothness. That means I want to see efficiency curve if its not changes than want to stope my solver. I found in CFX solver control there is an option interrupt control and i can define efficiency expression. But How can i cake difference of two iteration (smoothness)? Hope you understand my question. Regards,
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Best Redards, Saima |
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June 13, 2011, 20:31 |
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#7 |
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Pranab N Jha
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Location: Houston, TX
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Can't help you on this one... I use Fluent 6.3 (as my university has it). Is efficiency smoothness related to the residuals by any chance?
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June 13, 2011, 20:34 |
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#8 |
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Saima
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Location: Canada
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No smoothness is different from residual RMS is root mean square error. which is based on average value.
Anyways thank you very much for the first part.
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Best Redards, Saima |
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March 22, 2013, 16:46 |
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#9 | |
New Member
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Quote:
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December 28, 2013, 12:08 |
Use Solution Data from File as Initialization Method
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#10 | |
New Member
Mahdi Torabi Asr
Join Date: Dec 2013
Posts: 10
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Quote:
Go to "Calculation Activities" menu → Tick the "Automatically Initialize Solution and Modify Case" option → Click "Edit" → Go to "Initialization Method" tab→ Choose "Use Solution Data from File" option → Locate the existing result file with ".dat.gz" extension → Ok and then run calculation as usual. |
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July 12, 2016, 16:45 |
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#11 |
Senior Member
Have a nice time!
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When I follow your steps, the solution begins and then stops after 30 iterations...what should I do? the number of time steps is changed to automatic and I wanna 10000
Thanks |
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March 6, 2017, 09:27 |
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#12 |
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saurabh kumar gupta
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Hi Ahmed Saeed Mansour,
Have you solved this problem? I am also facing the same problem. my unsteady solution stopped because of less memory space. now how can i start simulation from previous time step data? i have previous time steps case and data files and tried with method suggested by mahditorabiasr but it stop after few iteration. i will appreciate if you can help. Thanks Saurabh |
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March 6, 2017, 13:03 |
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#13 |
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Hello dear Rsaurabh, Open Fluent from its single Icon without opening Ansys workbench...Then click on File ..read...Select the last case and data file .cas like the attached snapshot...then the program has to read the solution at this time step..I have made this many times..Thanks
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March 7, 2017, 09:06 |
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#14 |
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saurabh kumar gupta
Join Date: Jul 2016
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Thanks Ahmed Saeed Mansour. i was doing it with mahditorabiasr suggestion that was not working but just simply load case and data works.
Thanks again Saurabh |
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March 7, 2017, 10:32 |
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#15 |
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Not at all sir
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October 24, 2018, 09:08 |
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#16 | |
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October 25, 2018, 13:14 |
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#17 |
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????????????? ????????? ??????? ??????? ? ?????? ?????? | ???? ????????????? ANSYS | This thread | Refback | October 3, 2013 23:35 |
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