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

How to evaluate solution for inert particle in water

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

Reply
 
LinkBack Thread Tools Display Modes
Old   April 16, 2011, 07:52
Default How to evaluate solution for inert particle in water
  #1
Member
 
Sujay
Join Date: Apr 2010
Location: Karnataka, India
Posts: 38
Rep Power: 6
sujay is on a distinguished road
I am modelling inert solid particle (density ~ 950 kg/m3) in water. Domain is tank with inlet at top corner and outlet at opposite bottom corner. Top surface is open to atomisphere and particle leave once it reach to top.

Particles are injected at the inlet ( volume fraction < 1 %). I want to know how much particle fraction is carried away by water at outlet, left thorogh top surface and balnace in tank.

Sujay
sujay is offline   Reply With Quote

Old   April 17, 2011, 07:33
Default
  #2
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 9,150
Rep Power: 73
ghorrocks has a spectacular aura aboutghorrocks has a spectacular aura aboutghorrocks has a spectacular aura about
And your question is.......... ?

Please don't say "How do you model this?". I have written "Do the tutorials" enough on this forum.
ghorrocks is offline   Reply With Quote

Old   April 18, 2011, 00:13
Default
  #3
Member
 
Sujay
Join Date: Apr 2010
Location: Karnataka, India
Posts: 38
Rep Power: 6
sujay is on a distinguished road
I am trying in CFX & did tutorials needed for the present case ( Flow through butterfly valve, Gas liquid flow in airlift reactor & Coal combustion).

I had used appropriate models to set the case and solved but not able to how to check the balance of particle incoming in system, remain in system and leaving system.

Sujay
sujay is offline   Reply With Quote

Old   April 18, 2011, 06:47
Default
  #4
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 9,150
Rep Power: 73
ghorrocks has a spectacular aura aboutghorrocks has a spectacular aura aboutghorrocks has a spectacular aura about
So what is your question? Are you asking how to post-process the results to find where the particles go? Or are you asking how to model this sort of flow? Or that your model is not accurate?
ghorrocks is offline   Reply With Quote

Old   April 18, 2011, 07:27
Default
  #5
Member
 
Sujay
Join Date: Apr 2010
Location: Karnataka, India
Posts: 38
Rep Power: 6
sujay is on a distinguished road
Yes sir I am interested in post processing of results. i want to know distribution of particle preferably volume fraction leaving system and accumulated in system with respect to incoming particles.

Is it possible to get this in terms of particle size distribution ?

Also need fluid and particle distribution along few planes.

Sujay
sujay is offline   Reply With Quote

Old   April 18, 2011, 07:45
Default
  #6
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 9,150
Rep Power: 73
ghorrocks has a spectacular aura aboutghorrocks has a spectacular aura aboutghorrocks has a spectacular aura about
This is all straight forward post processing for a particle tracking simulation. This is covered in the tutorials I think.

Quote:
i want to know distribution of particle preferably volume fraction leaving system
Then look at the volume fraction at the outlet.

Quote:
and accumulated in system
Then look at the volume fraction in the system.

Quote:
Is it possible to get this in terms of particle size distribution ?
Do you use a particle tracking model which includes particle size distributions? If yes, then you can sort the particle tracks based on many parameters, including particle size.

As I said, this is all basic post-processing of a multiphase run. It should be pretty obvious.
ghorrocks is offline   Reply With Quote

Old   April 18, 2011, 08:35
Default
  #7
Member
 
Sujay
Join Date: Apr 2010
Location: Karnataka, India
Posts: 38
Rep Power: 6
sujay is on a distinguished road
Please tell more details from which function in post processing i get these values
sujay is offline   Reply With Quote

Reply

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
Water vapour condensation in CFX-5.7.1 hdj CFX 1 November 27, 2005 07:15
Particle track files Sankalp CFX 1 August 25, 2004 23:25
Particle Trajectory calculation when particle hit yueroo FLUENT 2 February 28, 2001 04:26
CFL Condition Matt Umbel Main CFD Forum 14 January 12, 2001 14:34
Wall functions Abhijit Tilak Main CFD Forum 6 February 5, 1999 01:16


All times are GMT -4. The time now is 06:25.