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

How are MRF and Mixing Plane 'time-averaged'?

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

Reply
 
LinkBack Thread Tools Display Modes
Old   May 10, 2016, 11:17
Default How are MRF and Mixing Plane 'time-averaged'?
  #1
New Member
 
Join Date: May 2016
Posts: 1
Rep Power: 0
newby is on a distinguished road
Hi. It's great to have a place to ask questions. Please forgive my lack of knowledge - I'm a newby!

In ANSYS Fluent, there is the Sliding Mesh model, which solves the fundamental equations for each time-step. The moving mesh zone (if we assume one moving zone and one stationary zone) then moves on with time, and at a new time step, another solution is calculated. This method is therefore unsteady, or 'time-accurate'.

I understand the basic principle of MRF and Mixing Plane, but do not understand how these models are 'time-averaged'. Please could someone explain this?

((the MRF model is often described as a 'frozen rotor' model – a solution is only achieved for one orientation, and so it's like a 'snapshot' of the system. If it's a snapshot, how can it be time-averaged?))

Last edited by newby; May 10, 2016 at 11:22. Reason: additional query
newby is offline   Reply With Quote

Reply

Tags
mixing plane model, multiple reference frames, sliding mesh model

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
problems with mixing plane dowlee OpenFOAM Running, Solving & CFD 6 September 21, 2016 00:14
Mixing Tank 3D MRF case monty86 FLUENT 1 October 9, 2015 03:43
mixing plane vs frozen rotor feafan STAR-CCM+ 5 August 25, 2014 06:14
Modelling mixing tank using MRF Adi FLUENT 6 November 4, 2009 01:28
difference in MRF and Mixing plane sam FLUENT 0 November 18, 2006 12:34


All times are GMT -4. The time now is 13:28.