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

Need help to choose the based tutorial for my case

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

Reply
 
LinkBack Thread Tools Display Modes
Old   July 13, 2016, 05:26
Smile Need help to choose the based tutorial for my case
  #1
New Member
 
Dali Yu
Join Date: Jul 2016
Posts: 1
Rep Power: 0
yudali is on a distinguished road
My Case: a round tube, continuous vapor with dispersed droplets, turbulent flow. Between two phases, there has heat transfer and mass transfer, there also has heat transfer between tube wall and two phases.

I am curious about what tutorials in OpenFoam code should I choose as a base. I have two options for my poor experience: 1. twoPhaseEulerFoam/RAS/bubbleColumn ; 2. reactingTwoPhaseEulerFoam/RAS/wallBoiling

I use the version 4.0, and I am a new openfoam learner, so plaese someone can offer me some options and attach little introduction of the tutorial would be very appreciated. Thank you so much!
yudali is offline   Reply With Quote

Old   July 25, 2016, 17:01
Default
  #2
New Member
 
mohsen ari.
Join Date: Apr 2013
Posts: 12
Rep Power: 7
arianam is on a distinguished road
Hi,
It depends on which phenomenon is of more importance to you.
I suggest you to start with bubbleColumn case. It is closer to your goal. Off course, if there is no heterogeneous (wall) phase change in your case.
The wallBoiling case can be also a good case if there is heat transfer and boiling at the walls and it is important for you.
Best,
Mohsen


Quote:
Originally Posted by yudali View Post
My Case: a round tube, continuous vapor with dispersed droplets, turbulent flow. Between two phases, there has heat transfer and mass transfer, there also has heat transfer between tube wall and two phases.

I am curious about what tutorials in OpenFoam code should I choose as a base. I have two options for my poor experience: 1. twoPhaseEulerFoam/RAS/bubbleColumn ; 2. reactingTwoPhaseEulerFoam/RAS/wallBoiling

I use the version 4.0, and I am a new openfoam learner, so plaese someone can offer me some options and attach little introduction of the tutorial would be very appreciated. Thank you so much!
arianam is offline   Reply With Quote

Old   February 8, 2018, 11:00
Default
  #3
us7
New Member
 
Umer
Join Date: Aug 2016
Posts: 27
Rep Power: 4
us7 is on a distinguished road
Quote:
Originally Posted by arianam View Post
Hi,
It depends on which phenomenon is of more importance to you.
I suggest you to start with bubbleColumn case. It is closer to your goal. Off course, if there is no heterogeneous (wall) phase change in your case.
The wallBoiling case can be also a good case if there is heat transfer and boiling at the walls and it is important for you.
Best,
Mohsen
Hello,
Can any one tell me that what is major difference in twoPhaseEulerFoam and
reactingTwoPhaseEulerFoam?
Other thing i want to confirm for reactingTwoPhaseEulerFoam: is it based on volume fraction or mass fraction? tutorials are same for both solvers.

Regards,
Umer
us7 is offline   Reply With Quote

Old   February 16, 2018, 15:31
Default
  #4
New Member
 
Join Date: Dec 2014
Posts: 6
Rep Power: 5
roshanak878 is on a distinguished road
Quote:
Originally Posted by us7 View Post
Hello,
Can any one tell me that what is major difference in twoPhaseEulerFoam and
reactingTwoPhaseEulerFoam?
Other thing i want to confirm for reactingTwoPhaseEulerFoam: is it based on volume fraction or mass fraction? tutorials are same for both solvers.

Regards,
Umer
I think reactingTwoPhaseEulerFoam is based on volume fraction called alpha.gas, alpha.liquid.
I think difference between these solvers is that reactingTwoPhaseEulerFoam is suitable for simulation when you have phase change like condensation or boiling.
I mostly work in reactingTwoPhaseEulerFoam and example you mentioned "wallBoiling"?
did you work on that? if yes, can you tell that did you obtain the same heat flux you applied in wall? (in this example instead of constant temperature we applied heat flux (100000W/m2)), when you run this example and calculate heat flux at wall's control volume, did you get the exact value you set at wall?
roshanak878 is offline   Reply With Quote

Reply

Tags
reactingtwophaseeulerfoam, twophaseeulerfoam

Thread Tools
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 On
Pingbacks are On
Refbacks are On


Similar Threads
Thread Thread Starter Forum Replies Last Post
[DesignModeler] DesignModeler Scripting: How to get Full Command Access ANT ANSYS Meshing & Geometry 48 November 17, 2016 04:12
NREL SOWFA Tutorial case mohsen.boojari OpenFOAM Running, Solving & CFD 0 March 8, 2016 10:35
OpenFoam.1.7.x floatingObject tutorial case & MULES:alpha1 greater than 1 anmartin OpenFOAM Bugs 18 September 8, 2013 01:30
Propeller tutorial case enquiries chujeh2020 OpenFOAM 0 August 26, 2012 01:18
Case in Fluent Tutorial 1 Lam FLUENT 0 August 24, 2004 11:25


All times are GMT -4. The time now is 03:23.