CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Mixing determination

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

LinkBack Thread Tools Display Modes
Old   March 16, 2000, 09:02
Default Mixing determination
Posts: n/a
Am looking at 2d mixing within a circular tank where a circular stirrer is offset from the centre and rotates at about 20 rad/s. A number of models for different offset values have been constructed - would it be possible to determine the level of mixing of the fluid using a plot of turbulence intensity or is there another way?

Would be grateful for assistance!

Thanks in advance

  Reply With Quote

Old   March 23, 2000, 21:51
Default Re: Mixing determination
Sung-Eun Kim
Posts: n/a
You can solve any passive scalar equation (e.g.,energy equation)in addition to the flow equations to study the mixing. Start with a temperature field patched in such that you have a region where its temperature is different from the remaining region, and see how the temperature field evolves with time. Or you can solve species equations instead of temperature with the flow equations. But the results would largely remain the same if turbulence is mainly responsible for mixing.

Turbulence intensity is a measure of velocity fluctuation. Relevant to mixing as it may be, it can't be interpreted as a direct measure of the degree of mixing.
  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
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
mixing determination M. A. Rakib FLUENT 5 June 3, 2000 10:22
Mixing Determination J.Spence FLUENT 1 March 31, 2000 18:08

All times are GMT -4. The time now is 05:11.