|
[Sponsors] |
How to define particle-wall restitution coefficient in Eulerian multiphase model ? |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
May 31, 2011, 00:35 |
How to define particle-wall restitution coefficient in Eulerian multiphase model ?
|
#1 |
New Member
Sangram Roy
Join Date: Jul 2010
Posts: 18
Rep Power: 16 |
Hi,
I am using Eulerian multiphase along with granular model to simulate a circulating fluidized bed. Where do I specify the value for particle-wall restituition coefficient? Thanks |
|
May 31, 2011, 04:32 |
|
#2 |
New Member
Angie
Join Date: Nov 2010
Posts: 17
Rep Power: 16 |
hi,
you cannot define it. Instead use specularity coeffcient. |
|
May 31, 2011, 04:57 |
|
#3 |
New Member
Sangram Roy
Join Date: Jul 2010
Posts: 18
Rep Power: 16 |
Is there any relation between specularity coefficient and particle-wall restitution coefficient?
|
|
June 1, 2011, 02:59 |
|
#4 |
New Member
Angie
Join Date: Nov 2010
Posts: 17
Rep Power: 16 |
I am not sure about this............May be some UDF can be written....
|
|
June 1, 2011, 03:05 |
|
#5 |
New Member
Sangram Roy
Join Date: Jul 2010
Posts: 18
Rep Power: 16 |
hi,
Many results on simulation have been published using both 'particle-particle restitution coeffcient' and 'particle-wall restitution coeffcient' along with 'specularity coefficient'. I am just wondering how is it possible. Are you sure that one cannot specify 'particle-wall coefficient' ? Thanks |
|
June 1, 2011, 07:29 |
|
#6 |
New Member
Rok Sibanc
Join Date: Sep 2009
Posts: 9
Rep Power: 17 |
define -> phases, select secondary phase, set and set Granular Temperature Model to Partial Differential Equation
now you can set coefficient of restitution under Boundary Conditions, wall (for second phase) under multiphase. |
|
June 1, 2011, 07:32 |
|
#7 |
New Member
Sangram Roy
Join Date: Jul 2010
Posts: 18
Rep Power: 16 |
Thanks a lot...!
|
|
Tags |
eulerian multiphase model, fluidized bed, granular flow |
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
Effect of restitution coefficient: Eulerian model | Kushagra Mittal | CFX | 0 | August 7, 2007 00:11 |
about compresive phase | James | CFX | 10 | September 12, 2006 04:16 |
Two-Phase Buoyant Flow Issue | Miguel Baritto | CFX | 4 | August 31, 2006 13:02 |
particle tracking | mike | CFX | 3 | April 17, 2006 01:05 |
Eulerian multiphase model with multicomponents? | Shankar | FLUENT | 1 | July 4, 2002 05:36 |