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-   -   Residence Time Distribution with Periodic Boundary Conditions (http://www.cfd-online.com/Forums/fluent/81148-residence-time-distribution-periodic-boundary-conditions.html)

sanjose October 18, 2010 10:11

Residence Time Distribution with Periodic Boundary Conditions
 
Hello ppl.
I have a question for all of you!
Is it possible to obtain a residence time distribution (RTD) of a tubular reactor using periodic boundary conditions (PBC)??!!
I'm determining the RTD with the tracer method, injecting a step of a non-diffusive tracer into the computational domain. The change of the tracer concentration, both in time and space, provides the RTD.
Now, I want to reduce the domain length (resulting to a substantial reduction of the required computational power and time) using PBC. But I do not know how to obtain the RTD using PBC!!
Thank you for your helping hand.


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