CFD Online Logo CFD Online URL
Home > Forums > Main CFD Forum

upflow .vs. downflow mixing

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

LinkBack Thread Tools Display Modes
Old   December 9, 1999, 03:50
Default upflow .vs. downflow mixing
Posts: n/a

I want to know the flow pattern in mixing vessel

case 1. upflow mixing that is, input is located in bottom and

output is in top

case 2 downflow mixing : opposite case

if retention time in vessel is so fast ( about 1~2min ) and L/D =2.0 then what type( upflow & downflow ) is effective for well mixing ? is there any data about the flow pattern in both case ?

i hope your answer..

  Reply With Quote

Old   December 10, 1999, 05:08
Default Re: upflow .vs. downflow mixing
Jin Wook LEE
Posts: n/a
Dear Mr. Lee

I think that it depends on many factor such as the location of mixer(stirrer), inlet shape and so on. What I can say is, in general, gravity can not affect the flow pattern. If you have further question, please call me(02-3661-6411)

Sincerely, Jinwook
  Reply With Quote


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
Problem with Mixing plane Mitpostdoc FLUENT 0 July 26, 2011 14:31
gas-liquid upflow and downflow in packed bed ,the Ergun pressure drop is same? W7032654 FLUENT 0 March 11, 2011 22:26
Meshing a Mixing Plane in ICEM Will Anderson ANSYS Meshing & Geometry 2 November 9, 2010 10:16
Meshing a Mixing Plane using ICEM Will Anderson FLUENT 0 November 6, 2010 18:08
Mixing plane geometry definition Hbet FLUENT 0 January 18, 2002 08:16

All times are GMT -4. The time now is 13:42.