Iteration List in Transient Statistics

ashtonJ · November 12, 2014, 17:48

Dear all,
I am trying to understand start and stop iteration list in transient statistics.
I looked at the CFX help documents, it says that
The start iteration for a given transient statistic specifies the timestep index at which statistic accumulation begins.

Lets say that I run my model for 1 [s] with time step of 0.1 [s] and I want to calculate the transient statistics between 0.4 and 0.6 [s], then the start and stop iteration list would be

Start Iteration List: 5
Stop Iteration List: 7

Please let me know if I am wrong.

Thanks
AshtonJ

JuPa · November 18, 2014, 07:41

Unfortunately it isn't very clear. I suspect what you wrote is correct. My suggestion is do a quick transient pipe flow problem with and without the transient statistics method you mentioned and see what happens.

ahmad95 · November 8, 2017, 02:04

Hello and how are you?
I modeled a vessel with 10 bits of heart. But, I did not save all the fluid information in all times(except end bit of heart). I checked the transient statistics for WSS(WHIT OUT initialize and stop section).
Now I wanna draw the contour of average of WSS on a surface in end bit off heart(NOT all the time of simulation which I checked before).
Exactly what should I do?

November 12, 2014, 17:48	Iteration List in Transient Statistics	#1
ashtonJ Senior Member Ashkan Javadzadegan Join Date: Sep 2010 Posts: 255 Rep Power: 17	Dear all, I am trying to understand start and stop iteration list in transient statistics. I looked at the CFX help documents, it says that The start iteration for a given transient statistic specifies the timestep index at which statistic accumulation begins. Lets say that I run my model for 1 [s] with time step of 0.1 [s] and I want to calculate the transient statistics between 0.4 and 0.6 [s], then the start and stop iteration list would be Start Iteration List: 5 Stop Iteration List: 7 Please let me know if I am wrong. Thanks AshtonJ

November 8, 2017, 02:04	part of all transient statistics	#3
ahmad95 New Member ahmad Join Date: Jun 2013 Posts: 11 Rep Power: 13	Hello and how are you? I modeled a vessel with 10 bits of heart. But, I did not save all the fluid information in all times(except end bit of heart). I checked the transient statistics for WSS(WHIT OUT initialize and stop section). Now I wanna draw the contour of average of WSS on a surface in end bit off heart(NOT all the time of simulation which I checked before). Exactly what should I do?

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November 18, 2014, 07:41		#2
JuPa Senior Member Mr CFD Join Date: Jun 2012 Location: Britain Posts: 361 Rep Power: 15	Unfortunately it isn't very clear. I suspect what you wrote is correct. My suggestion is do a quick transient pipe flow problem with and without the transient statistics method you mentioned and see what happens.