CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > OpenFOAM

Evaporation Model

Register Blogs Members List Search Today's Posts Mark Forums Read

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   March 20, 2014, 04:33
Unhappy Evaporation Model
  #1
Member
 
bilal
Join Date: Mar 2014
Location: Germany
Posts: 30
Rep Power: 12
brbbhatti is on a distinguished road
Hi!

I am working on the Fuel Injection Model of Diesel Engine and I have some problem related to Evaporation of Urea and Water. I am using Open Foam 2.1.

I am using "LiquidEvaporation Model" for Water and for Urea i am using "SingleKineticRateDevolatilisation Model".

Is these two models are good Enough for Evaporation or is there any other Model better then that which i can use.
brbbhatti is offline   Reply With Quote

Old   March 20, 2014, 10:53
Default
  #2
Senior Member
 
dkxls's Avatar
 
Armin
Join Date: Feb 2011
Location: Helsinki, Finland
Posts: 156
Rep Power: 19
dkxls will become famous soon enough
Quote:
Originally Posted by brbbhatti View Post
Hi!

I am working on the Fuel Injection Model of Diesel Engine and I have some problem related to Evaporation of Urea and Water. I am using Open Foam 2.1.

I am using "LiquidEvaporation Model" for Water and for Urea i am using "SingleKineticRateDevolatilisation Model".

Is these two models are good Enough for Evaporation or is there any other Model better then that which i can use.
I have written it now already several times here in the forums:
The evaporation model in the lagrangian libraries of versions 2.0.x to 2.2.2 has serious flaws/bugs, which affect simulations with the sprayFoam solver (and possibly others) strongly.
Only the git branch of 2.2.x has all bug fixes included. Also version 2.3.0 should work fine as it also has all bug fixes included (though I haven't tested version 2.3.0 yet).

My advise: Switch to OpenFOAM 2.3.0 (or at least 2.2.x) and see if you still have problems.

Just to mention it: The dieselFoam solver in OF versions 2.0.x and earlier is working correctly.
dkxls is offline   Reply With Quote

Old   March 20, 2014, 10:55
Default
  #3
Senior Member
 
dkxls's Avatar
 
Armin
Join Date: Feb 2011
Location: Helsinki, Finland
Posts: 156
Rep Power: 19
dkxls will become famous soon enough
And read this thread very carefully:
http://www.cfd-online.com/Forums/ope...tml#post351117
dkxls is offline   Reply With Quote

Old   March 21, 2014, 04:50
Default
  #4
Member
 
bilal
Join Date: Mar 2014
Location: Germany
Posts: 30
Rep Power: 12
brbbhatti is on a distinguished road
Hay Armin,

Thanks for reply and the link you post. I am now doing some work with OpenFOAM 2.3.0 as (2.2.0 is not stable) and there is also some problem its not working properly with both Models. I will run that program again and post that problem and the details and then you can see and maybe you can correct me or help me in solving that problem. And i mention the details of my Model in other post but later i will post them here too with the error so that you can see.
brbbhatti is offline   Reply With Quote

Reply

Tags
devolatilisation model, diesle engine, evaporation model, fuel injection

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
Superlinear speedup in OpenFOAM 13 msrinath80 OpenFOAM Running, Solving & CFD 18 March 3, 2015 05:36
Water subcooled boiling Attesz CFX 7 January 5, 2013 03:32
K - epsilon VS SST turbulence model Maicol Main CFD Forum 0 November 30, 2012 16:25
Evaporation model in dieselSpray Tag OpenFOAM 25 July 13, 2011 08:57
Advanced Turbulence Modeling in Fluent, Realizable k-epsilon Model Jonas Larsson FLUENT 5 March 13, 2000 03:27


All times are GMT -4. The time now is 22:27.