CFD Online Logo CFD Online URL
Home > Forums > Software User Forums > ANSYS > CFX

Bubble column

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

LinkBack Thread Tools Search this Thread Display Modes
Old   April 29, 2008, 15:22
Default Bubble column
Posts: n/a
Can anyone explain the physics behind the following ..

When I did a simulation of a bubble column with bubbles specified at 4 mm, the vapour fraction in the column was about 0.96. When I increased the bubble size to 10 mm, the vapour fraction went down to 0.45.

Is the buoyancy force the difference. I used k-epsilon.

Thanks in advance, Sally.
  Reply With Quote

Old   May 1, 2008, 01:52
Default Re: Bubble column
Posts: n/a

I am tackling the same problem here too.

Could you please tell me as to how you created the bubble in cfx-pre. did u use a CEL or did u create 2 domains(by loading two meshes, one for the bubble and one for the column?)

Cheers, Nick
  Reply With Quote

Old   May 30, 2008, 08:52
Default Re: Bubble column
ram bhawan singh
Posts: n/a
i have made a buble column of 1 inch dia. what should be nesesary heiht of water in my column & why
  Reply With Quote


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
Bubble Column Modelling dlaw FLUENT 24 October 31, 2017 07:01
bubble column ken FLUENT 1 June 30, 2013 02:18
bubble rising in a column swamysrikanth Main CFD Forum 2 September 27, 2010 09:59
Help required for CFD simulation of Trayed Bubble Column using Fluent art705 Main CFD Forum 0 July 15, 2009 05:04
INLET BOUNDARY FOR BUBBLE COLUMN Swarnendu CFX 1 July 5, 2004 03:16

All times are GMT -4. The time now is 08:58.