|
[Sponsors] |
May 16, 2014, 08:15 |
Modelling the Support Mat in exhaust DPF
|
#1 |
New Member
Join Date: Apr 2014
Posts: 6
Rep Power: 12 |
Hey everyone,
I am trying to analyze the flow distribution over DPF brick but i am not sure about how to model the mat. Should i model it as porous region like the brick or not? I need your help on this. |
|
May 28, 2014, 16:54 |
|
#2 |
New Member
Join Date: Apr 2014
Posts: 6
Rep Power: 12 |
Anyone can help? This is really important.
|
|
May 28, 2014, 17:19 |
|
#3 |
Senior Member
Join Date: Nov 2010
Location: USA
Posts: 1,232
Rep Power: 24 |
You'll likely have to help us first, I don't know what a DPF brick is.
|
|
May 29, 2014, 01:39 |
|
#4 |
New Member
Join Date: Apr 2014
Posts: 6
Rep Power: 12 |
A DPF is diesel particulate filter which is a component used in order to lower the exhaust emission levels. In this component there is a brick which filters the particules in exhaust gas and this brick is rolled with a mat to keep it stable in the canning. I want to model the flow through DPF . The brick is modeled as porous region but i am not sure how to model the mat or should i ignore the mat at all.
|
|
June 2, 2014, 04:13 |
|
#5 |
Senior Member
Ping
Join Date: Mar 2009
Posts: 556
Rep Power: 20 |
i would think it depends how much flow goes through the mat versus just axially down the paths between the mat
if cross flow does happen and you need to model it then you could apply some appropriate porous coeficients in the radial directions |
|
June 2, 2014, 05:37 |
|
#6 |
Member
kris
Join Date: May 2014
Posts: 73
Rep Power: 12 |
Hi,
As far as I know, the packing material around the DPF brick need not be modelled. Typically there is no flow through that. However, if you are interested in computing the heat transfer, then the material might become important. |
|
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Need some support in modelling a cylinder | naresh007 | Main CFD Forum | 1 | January 23, 2014 11:22 |
CFX11 + Fortran compiler ? | Mohan | CFX | 20 | March 30, 2011 18:56 |
two phase modelling: exhaust and air | Paweł | FLUENT | 0 | September 6, 2006 11:43 |
Modelling Flow from an Exhaust | Bob | CFX | 0 | July 26, 2002 05:38 |
Stack Exhaust modelling | Bob | CFX | 0 | June 27, 2002 13:37 |