|
[Sponsors] |
Difference between (DEFINE_VR_RATE) & (DEFINE_HET_RXN_RATE) |
|
LinkBack | Thread Tools | Search this Thread | Display Modes |
February 1, 2018, 10:35 |
Difference between (DEFINE_VR_RATE) & (DEFINE_HET_RXN_RATE)
|
#1 |
New Member
Mohamed Sobhi
Join Date: Sep 2017
Posts: 4
Rep Power: 9 |
Dear all;
Can anyone help me in understanding the main difference(s) between (DEFINE_VR_RATE) & (DEFINE_HET_RXN_RATE) user-defined function types? |
|
July 13, 2018, 11:29 |
|
#2 |
New Member
Adriana
Join Date: Oct 2012
Location: Canada
Posts: 7
Rep Power: 14 |
Hi there,
One of the main difference is the number of phases involved in your simulation. If you have one phase, then you use DEFINE_VR_RATE, while if you have multiple phases, where there is reaction among phases, then you use DEFINE_HET_RXN_RATE. There could be other differences depending on your simulation, so I encourage you to look at the theory guide and the UDF manual for further description on the macros. They are helpful. |
|
January 8, 2019, 10:10 |
|
#3 | |
Member
Emerson
Join Date: May 2018
Posts: 35
Rep Power: 8 |
Quote:
DEFINE_VR_RATE and DEFINE_HET_RXN_RATE at the same time? And one more thing, the DEFINE_VR_RATE macro could be used in a heterogeneous reaction environment? Like, the reaction C + O2 = CO2 Where I used one UDF to modify the Reaction Rate with DEFINE_HET_RXN_RATE, and now I'm having trouble with carbon (C) consumption, it's not lowering =/ |
||
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
[snappyHexMesh] snappyHexMesh and cyclic boundaries | Ruli | OpenFOAM Meshing & Mesh Conversion | 2 | December 9, 2013 07:51 |
Periodic Boundary Condition for upwind difference | yohey44 | Main CFD Forum | 0 | October 27, 2010 14:10 |
the effect of upwind difference | hades | Main CFD Forum | 8 | March 15, 2009 00:43 |
Difference between scaled residuals and... | Dieter | FLUENT | 0 | April 28, 2006 18:52 |
Fininte difference and Finite element Technique | Mahendra Singh Mehra | FLUENT | 3 | December 23, 2005 00:49 |