unsteady statistics of custom field functions

Musa · January 14, 2014, 03:22

I would like to obtain time averaged data of custom field functions in FLUENT 6.3. I know this feature is available in ANSYS FLUENT 14. How do I go about it?

sbaffini · January 17, 2014, 04:43

Dear Musa,

there is no easy way to do that. Your only option is to use User Defined Memory locations and cumulate there your statistics as integrals in time then divide by the cumulated time.

The above should be, of course, implemented in a DEFINE_ADJUST UDF with an UDM for each statistic. Also, consider using a DEFINE_ON_DEMAND UDF to erase the cumulated statistics on request.

January 14, 2014, 03:22	unsteady statistics of custom field functions	#1
Musa Member Musango Lungu Join Date: Dec 2011 Location: China Posts: 73 Rep Power: 14	I would like to obtain time averaged data of custom field functions in FLUENT 6.3. I know this feature is available in ANSYS FLUENT 14. How do I go about it?

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January 17, 2014, 04:43		#2
sbaffini Senior Member Paolo Lampitella Join Date: Mar 2009 Location: Italy Posts: 2,152 Blog Entries: 29 Rep Power: 39	Dear Musa, there is no easy way to do that. Your only option is to use User Defined Memory locations and cumulate there your statistics as integrals in time then divide by the cumulated time. The above should be, of course, implemented in a DEFINE_ADJUST UDF with an UDM for each statistic. Also, consider using a DEFINE_ON_DEMAND UDF to erase the cumulated statistics on request.