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

multiphase flow

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

Like Tree3Likes
  • 1 Post By Tonoy Mondol
  • 1 Post By bhargavbharathan
  • 1 Post By Asghari_M

Reply
 
LinkBack Thread Tools Search this Thread Display Modes
Old   September 22, 2018, 15:06
Default multiphase flow
  #1
New Member
 
Tonoy Mondol
Join Date: Sep 2018
Posts: 13
Rep Power: 8
Tonoy Mondol is on a distinguished road
I am going to simulate solar still using nanofluid. upper a glass surface and constant temp. lower is a wood surface of constant temp.VOF model is used.now my question is: what is the phase interaction I will provide? water to vapor and vapor to water or only the first? and also is there any option to put latent heat of vaporization in ANSYS? and if I add nanoparticle with water then is it possible to do with VOF? or mixture model is necessary?
Asghari_M likes this.
Tonoy Mondol is offline   Reply With Quote

Old   September 24, 2018, 10:16
Default
  #2
Member
 
Bhargav Bharathan
Join Date: Jun 2015
Location: Montreal, Canada
Posts: 71
Rep Power: 11
bhargavbharathan is on a distinguished road
Quote:
Originally Posted by Tonoy Mondol View Post
I am going to simulate solar still using nanofluid. upper a glass surface and constant temp. lower is a wood surface of constant temp.VOF model is used.now my question is: what is the phase interaction I will provide? water to vapor and vapor to water or only the first? and also is there any option to put latent heat of vaporization in ANSYS? and if I add nanoparticle with water then is it possible to do with VOF? or mixture model is necessary?
Hi,

To use VOF you need to have 2 or more immiscible fluids. Check out the link below:
https://www.sharcnet.ca/Software/Flu...ug/node881.htm

-BB
Tonoy Mondol likes this.
bhargavbharathan is offline   Reply With Quote

Old   September 24, 2018, 14:55
Default
  #3
Senior Member
 
Mehdi Asghari
Join Date: Feb 2010
Posts: 127
Rep Power: 16
Asghari_M is on a distinguished road
Quote:
Originally Posted by Tonoy Mondol View Post
I am going to simulate solar still using nanofluid. upper a glass surface and constant temp. lower is a wood surface of constant temp.VOF model is used.now my question is: what is the phase interaction I will provide? water to vapor and vapor to water or only the first? and also is there any option to put latent heat of vaporization in ANSYS? and if I add nanoparticle with water then is it possible to do with VOF? or mixture model is necessary?
Hi.

Also , you need the implementation of phase change in VOF model.

There are a lot of papers & references for this purpose.

Good luck.

M.Asghari
Tonoy Mondol likes this.
Asghari_M is offline   Reply With Quote

Old   September 25, 2018, 12:49
Default
  #4
New Member
 
Tonoy Mondol
Join Date: Sep 2018
Posts: 13
Rep Power: 8
Tonoy Mondol is on a distinguished road
Quote:
Originally Posted by bhargavbharathan View Post
Hi,

To use VOF you need to have 2 or more immiscible fluids. Check out the link below:
https://www.sharcnet.ca/Software/Flu...ug/node881.htm

-BB
the problem consists of water initially at the bottom.which is provided with a patch. after time has gone the water produces vapor through natural convection.
please give me your mail id then I will give you the problem description and you help me if you can
Tonoy Mondol is offline   Reply With Quote

Old   September 25, 2018, 12:51
Default
  #5
New Member
 
Tonoy Mondol
Join Date: Sep 2018
Posts: 13
Rep Power: 8
Tonoy Mondol is on a distinguished road
Quote:
Originally Posted by Asghari_M View Post
Hi.

Also , you need the implementation of phase change in VOF model.

There are a lot of papers & references for this purpose.

Good luck.

M.Asghari
if you have any reference then give me.what is the procedure for implementaion? is it UDF?
my mail - tonoymondol@gmail.com
Tonoy Mondol is offline   Reply With Quote

Reply

Tags
evaporation condensation, latent heat, multiphase flow, vof

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
About Some Concepts:Laminar flow, turbulent flow, steady flow and time-dependent flow Jing Main CFD Forum 8 October 5, 2018 18:02
multiphase flow ,mass and volume fraction imbalance sope111 CFX 16 September 3, 2018 01:10
Review: Reversed flow CRT FLUENT 1 May 7, 2018 06:36
Multiphase flow in a pipe with a CHT wissal CFX 4 June 12, 2017 13:15
Capillary pressure in multiphase flow in porous media Lalit FLUENT 0 March 21, 2013 02:24


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