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

Non-newtonian flow in open tank doesn't fall due to gravity

Register Blogs Community New Posts Updated Threads Search

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   July 4, 2017, 19:41
Default Non-newtonian flow in open tank doesn't fall due to gravity
  #1
New Member
 
Alexis Yanez
Join Date: Apr 2015
Posts: 2
Rep Power: 0
ayanezc is on a distinguished road
Hi! I'm modeling an open tank, using mutiphase model, phase1: air; phase2: non-newtonian fluid.

My problem is the flow throught the hole in the separating plate goes up to the top of the tank, like no gravity was set (in apparience).

I have checked a lot of settings and I think they are fine:

- Non-newtonian model activated and choosed
- Negative gravity on Y axis
- Pressure 1.73psig as boundary condition on inlet
- Pressure 0psig as boundary condition on outlet
- Pressure 0psig as boundary condition on ambient (top of tank)
- Air density 1225 kg/m3 as Operation Condition
- Patching in bottom region of tank, liquid fraction volume = 1
- 900 iterations was executed
- When i try modeling water as Phase 1, results appear to be correct (fluid goes up to the bottom oulet).

I will be grateful if someone can help to find the cause of error.
Thanks!

Last edited by ayanezc; July 9, 2017 at 17:55. Reason: Delete image
ayanezc is offline   Reply With Quote

Old   July 9, 2017, 17:56
Default
  #2
New Member
 
Alexis Yanez
Join Date: Apr 2015
Posts: 2
Rep Power: 0
ayanezc is on a distinguished road
Solved, missing phase asignation to phase 2. Thanks.
ayanezc is offline   Reply With Quote

Reply

Tags
open tank multiphase


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
[OpenFOAM.org] Error creating ParaView-4.1.0 OpenFOAM 2.3.0 tlcoons OpenFOAM Installation 13 April 20, 2016 17:34
[Other] Adding solvers from DensityBasedTurbo to foam-extend 3.0 Seroga OpenFOAM Community Contributions 9 June 12, 2015 17:18
[swak4Foam] swak4foam building problem GGerber OpenFOAM Community Contributions 54 April 24, 2015 16:02
Open Channel Flow ElanMorin FLUENT 4 February 25, 2015 16:26
centOS 5.6 : paraFoam not working yossi OpenFOAM Installation 2 October 9, 2013 01:41


All times are GMT -4. The time now is 09:18.