|
[Sponsors] |
July 19, 2011, 10:28 |
Atomization and Breakup model
|
#1 |
Member
chenkai
Join Date: May 2010
Location: munich
Posts: 44
Rep Power: 16 |
Hi everyone,
I am using OpenFOAM (SprayFoam) to simulate the spray problem in a gas turbine (liquid jet in cross flow) 1. In the spray class of OpenFAOM, there are two Atomization model: BlobsSchet and LISA model. I have try both of them in my problem, I notice a difference is that LISA calculate a rosin rammler distrubution after the liquidCore. But BlobsSheet does not. And I don't know why? Could any one tell me the main difference of this two Atomization model? The atomization process happens in the liquidCore or out the liquidCore? 2. Another problem is about the Breakup Model. In OpenFOAM 2.0 I have noticed taht a new breakup model: PilchErdman model is implemented. And with this model I have got very good results for my spray problem. I have also try with other breakup model like TAB, ETAB, ReitzKHRT, ReitzDiwakar, but the results (spray penetration and SMD) ist not so good. Has anyone also try with those different breakup model and it would be nice that you can tell me some difference of these different breakup model. Thanks a lot in advance. |
|
October 11, 2011, 19:27 |
|
#2 |
Senior Member
Marco A. Turcios
Join Date: Mar 2009
Location: Vancouver, BC, Canada
Posts: 740
Rep Power: 28 |
I came across this thread while doing my own investigation in spray modeling. For most of the atomization and breakup models, you can find details of the implementation in
$FOAM_SRC/lagrangian/dieselSpray/spraySubModels/atomizationModel$MODEL/$MODEL.H I gave the example for atomization, but its similar for breakup as well. In the comments section it should give references to publications which give details. You can also look at the files through the online documentation. |
|
May 16, 2014, 09:11 |
|
#3 |
Member
|
Dear chenkai,
I am try to model a pressure-swirl atomizer with LISA model in sprayFoma, but I don't know how to set up the case (I am really fresh on OpenFOAM). Can you share the setting files for the LISA model? Thanks a lot in advance! |
|
May 27, 2014, 00:24 |
|
#4 | |
Member
CFDUser
Join Date: Mar 2014
Posts: 59
Rep Power: 13 |
Quote:
Specify you Atomization model as LISA and run. It will give an error message saying keyword LISACoffs missing. then enter that keyward are run again. it will ask for all the keywards and corresponding values. All the best!! Regards, CFDUser_ |
||
May 31, 2014, 04:43 |
|
#5 | |
Member
|
Quote:
Thanks a lot for the suggestion, I will have a try. Best, Likun |
||
Thread Tools | Search this Thread |
Display Modes | |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
dieselfoam LISA spray model | leejc | OpenFOAM Running, Solving & CFD | 8 | May 16, 2014 10:48 |
breakup model SHF | sbu | OpenFOAM Pre-Processing | 1 | August 22, 2011 09:41 |
LISA model for biomedical application | jeff_F | CFX | 1 | July 16, 2009 19:28 |
the role of the atomization model | Jay | Siemens | 2 | March 7, 2008 20:16 |
atomization model vs breakup model | Jay | Siemens | 7 | January 24, 2008 19:51 |