help needed in residence time distribution case

eswar · March 2, 2011, 00:27

hi sir/mam myself eswar

my question is how to find the residence distribution of tracer sample using pulse input in fluent.

my project is study on static mixing.
my tracer sample is (CONGO RED DYE).
my experiment procedure is

1) inlet fluid water ( continuous flow)
2) inlet tracer sample (pulse injection)
3) i want to find the concentration of tracer sample at regular time intervals.

please help me

thanks in advance

Amir · March 2, 2011, 02:52

Hi eswar,
I think you can do that with solving a scalar transport equation in unsteady mode. for pulse input you can use a simple UDF and write data at specific intervals.

March 2, 2011, 00:27	help needed in residence time distribution case	#1
eswar New Member eswar Join Date: Feb 2011 Location: india Posts: 2 Rep Power: 0	hi sir/mam myself eswar my question is how to find the residence distribution of tracer sample using pulse input in fluent. my project is study on static mixing. my tracer sample is (CONGO RED DYE). my experiment procedure is 1) inlet fluid water ( continuous flow) 2) inlet tracer sample (pulse injection) 3) i want to find the concentration of tracer sample at regular time intervals. please help me thanks in advance

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March 2, 2011, 02:52		#2
Amir Senior Member Amir Join Date: May 2009 Location: Montreal, QC Posts: 735 Blog Entries: 1 Rep Power: 22	Hi eswar, I think you can do that with solving a scalar transport equation in unsteady mode. for pulse input you can use a simple UDF and write data at specific intervals.