Plot output parameter’s oscillation

Pierre1 · March 21, 2015, 05:30

When I model cases with boundary layer separation, the output parameters always oscillate with iterations. That is normal and usually can’t be avoided easily. When I run a large number of simulations automatically, the simulations just can be set to run all automatically and only output parameters values without oscillation information can be given and listed automatically as well. But in this case, I won’t know whether oscillations happen in any of the simulations I just run and how strong the numerical oscillations are.

I once used Numeca Fine Turbo to do turbomachinery simulations. It could plot the oscillations of each design point automatically which brings huge convenience.

I’m wondering could CFX or Fluent also do that?

LuckyTran · March 22, 2015, 20:55

Create some monitors for your output parameter. Plot or print to file as you like.

March 21, 2015, 05:30	Plot output parameter’s oscillation	#1
Pierre1 Member Pierre Join Date: Mar 2015 Posts: 37 Rep Power: 11	When I model cases with boundary layer separation, the output parameters always oscillate with iterations. That is normal and usually can’t be avoided easily. When I run a large number of simulations automatically, the simulations just can be set to run all automatically and only output parameters values without oscillation information can be given and listed automatically as well. But in this case, I won’t know whether oscillations happen in any of the simulations I just run and how strong the numerical oscillations are. I once used Numeca Fine Turbo to do turbomachinery simulations. It could plot the oscillations of each design point automatically which brings huge convenience. I’m wondering could CFX or Fluent also do that?

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[swak4Foam] outputTime in Swak function	immortality	OpenFOAM Community Contributions	20	October 6, 2022 13:08
[swak4Foam] Foam warnings - related to swak4Foam	Salam-H	OpenFOAM Community Contributions	20	August 2, 2015 16:40
new variable output as a file in openfoam for Ensight plot	conceptone	OpenFOAM Post-Processing	1	February 18, 2014 15:54
writing execFlowFunctionObjects	immortality	OpenFOAM Post-Processing	30	September 15, 2013 07:16
Macro to output a plot curve	E Fardream	Fidelity CFD	5	July 9, 2007 09:13

March 22, 2015, 20:55		#2
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,761 Rep Power: 66	Create some monitors for your output parameter. Plot or print to file as you like.