|October 11, 2007, 08:57||
Help HIGH RESIDUALS
Hope any mathematician can help me.
I am not using a cfd code but using a propriety code (not much inofrmation is avaiable about it) based on two fluid model with staggered mesh scheme. I have used steady state flowrates values as input BC with outlet BC constant at atmospheric pressure, I got results that were far from experimental values.
next I tired putting experimental values (flow rates) as input BC keeping outletBC constant at atmpospheric pr. I also tried the reverse keeping experimental measured time series at outlet and keeping inlet BC (steady state values) at inlet BC. what I want to know is that in both cases there are few scattered high residual peaks in initial simulation till 400s and then the residuals drops down to 10-8 and below. I was wondering whether the trends (of varaibles like P, V etc) obtained in first 500s are the artfacts of these initail high residuals peaks or physics behind the phenomena?
looking forward to hear any suggestion.
|Thread||Thread Starter||Forum||Replies||Last Post|
|High residuals||ecram||CD-adapco||3||November 26, 2008 09:19|
|Residuals converged but high||Gilles||CFX||2||September 30, 2008 19:05|
|help high initial residuals||Aly||FLUENT||0||October 11, 2007 09:04|
|residuals||Karl||CFX||2||June 24, 2003 23:13|
|residuals||andrea||CD-adapco||0||March 6, 2002 10:41|