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Residence Time Distribution with Periodic Boundary Conditions

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Old   October 18, 2010, 10:11
Unhappy Residence Time Distribution with Periodic Boundary Conditions
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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.

Last edited by sanjose; October 19, 2010 at 15:36.
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