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: 16	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.

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
mesh file for flow over a circular cylinder	Ardalan	Main CFD Forum	7	December 15, 2020 14:06
Periodic boundary conditions	happy5jump	FLUENT	6	May 3, 2017 01:36
periodic boundary conditions at the inlet	Nacho Tauste	FLUENT	0	January 14, 2009 13:34
IcoFoam parallel woes	msrinath80	OpenFOAM Running, Solving & CFD	9	July 22, 2007 03:58
residence time distribution	markus	CFX	5	December 19, 2005 12:48

September 7, 2016, 05:13		#2
Saeedssh New Member Saeed Join Date: Jul 2016 Posts: 3 Rep Power: 10	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."