|January 10, 2011, 12:36||
Join Date: Apr 2009
Posts: 140Rep Power: 8
I am solving a problem for pipe flow i know inlet flow conditions such as:
mass flow rate
This flow has temp almost 700K so there is some insulation on pipe ad after some numerical calculation i found Tsurf for pipe is 477K.
Now i am giving boundary consition in CFX to find exit flow conditions.
1. At inlet i put T,P and I dont know any exit condition so i took mdot(in) = mdot(out) is it ok?
2. Secondly i dont know how to treat that wall can i impose Twall 477K? it will work? or otherwise what should i have to put.
|January 10, 2011, 17:41||
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 11,592Rep Power: 90
Sounds like you need to define a pressure inlet with T and P defined, and a mass flow rate outlet with the mass flow rate defined.
Your calculated wall temp will only apply at one location along the flow and will change as the flow temperature changes. Best to use a heat transfer coefficient boundary and let it work out the wall temperature as it goes along.
|Thread||Thread Starter||Forum||Replies||Last Post|
|LRR Rstm pipe flow takes too long to get fully developed||kjetil||OpenFOAM Running, Solving & CFD||0||February 13, 2010 12:26|
|some weird results about a simple pipe flow:||Ning||FLUENT||2||March 11, 2007 14:23|
|Flow in a Pipe having protrusion inside it||Hari Analakkat||Main CFD Forum||0||January 25, 2006 07:22|
|Flow through circular curved stationary pipe||R.Sripriya||Main CFD Forum||0||May 13, 2005 06:07|
|Pipe flow||John Grimm||Main CFD Forum||8||March 11, 2002 13:15|