CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > Software User Forums > ANSYS > FLUENT > Fluent Multiphase

Eulerian wall film: missing mass

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

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   April 20, 2017, 11:25
Default Eulerian wall film: missing mass
  #1
New Member
 
Alexey
Join Date: Mar 2017
Posts: 3
Rep Power: 4
MrBennet is on a distinguished road
Dear Colleagues,

I have a problem with modelling of ewf through dpm collection. When I do "sum" in "volume integrals" window the calculated total mass of film doesn't correspond to injection mass (subtracting droplets mass in flow). Anybody had the same problem and how did you solve it? I changed time steps, urf, dpm and ewf solution options but unsuccessfully.

Best regards,
Mr Bennet.
MrBennet is offline   Reply With Quote

Old   June 7, 2017, 12:57
Default Mass low in EWF model
  #2
New Member
 
pkumar
Join Date: Jun 2010
Posts: 7
Rep Power: 11
purushotam85 is on a distinguished road
Hi there,

Were you able to solve the issue? I am experiencing similar problem of mass loss.

Thanks,
Puru
purushotam85 is offline   Reply With Quote

Old   June 7, 2017, 13:39
Default
  #3
New Member
 
Alexey
Join Date: Mar 2017
Posts: 3
Rep Power: 4
MrBennet is on a distinguished road
Quote:
Originally Posted by purushotam85 View Post
Hi there,

Were you able to solve the issue? I am experiencing similar problem of mass loss.

Thanks,
Puru
Hi, Mr. Puru,

Select minimal thickness as small as possible and the discrepancy will be smaller.

Best regards,
Mr. Bennet.
MrBennet is offline   Reply With Quote

Old   June 8, 2017, 06:58
Default
  #4
Member
 
Ahmed Alkaisi's Avatar
 
Ahmed Alkaisi
Join Date: Aug 2015
Location: Australia
Posts: 80
Rep Power: 6
Ahmed Alkaisi is on a distinguished road
Send a message via Skype™ to Ahmed Alkaisi
Hi
I have water evaporate need to be condense on the glass
Is it required to activate the Eulieran wall film please?
I can't intialize it says can't intialize Eulieran wall film!!!

Sent from my SM-G900I using CFD Online Forum mobile app
Ahmed Alkaisi is offline   Reply With Quote

Old   October 27, 2019, 21:13
Default
  #5
New Member
 
Jinxiang xi
Join Date: May 2019
Posts: 1
Rep Power: 0
xjinxiang is on a distinguished road
Hello MrBennet and Puru,

Have you solved this problem of mass inconsistency between injected mass and film mass? From version 18, there is no option to specify minimal film thickness. The film mass depends a lot on the maximum film thickness, while is independent of the mass rate.

Have you found a method to ensure the mass consistency between injection and deposited film in V18 or V19?

BTW, have you found a method to consider the liquid-wall interaction, which determines the maximal film thickness?

Regards,

Jinxiang
xjinxiang is offline   Reply With Quote

Reply

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
mass flow in is not equal to mass flow out saii CFX 12 March 19, 2018 06:21
BUG: "Unable to read Transient airflow+Transient DPM and Eulerian wall film .gz file" Jeeloong FLUENT 0 November 27, 2015 11:38
How to monitor Eulerian Wall Film Convergence Jeeloong FLUENT 0 October 26, 2015 11:42
[ICEM] Export ICEM mesh to Gambit / Fluent romekr ANSYS Meshing & Geometry 1 November 26, 2011 13:11
Errors running allwmake in OpenFOAM141dev with WM_COMPILE_OPTION%3ddebug unoder OpenFOAM Installation 11 January 30, 2008 21:30


All times are GMT -4. The time now is 23:00.