Residence Time Distribution with Periodic Boundary Conditions

sanjose · October 18, 2010, 11:11

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.

Saeedssh · September 7, 2016, 05:13

dear sanjose
how can i do this?
"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."

October 18, 2010, 11:11	Residence Time Distribution with Periodic Boundary Conditions	#1
sanjose New Member Ignacio Join Date: Oct 2010 Posts: 4 Rep Power: 17	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 16:36.

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September 7, 2016, 05:13		#2
Saeedssh New Member Saeed Join Date: Jul 2016 Posts: 3 Rep Power: 11	dear sanjose how can i do this? "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."