# Rotating Reference Frame in CFX

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

 September 28, 2013, 06:54 Rotating Reference Frame in CFX #1 New Member   SBR Join Date: May 2013 Posts: 4 Rep Power: 6 Sponsored Links Hello, I'm new to CFX software. I've solved many problems in Fluent, but I have a question about the Moving Reference Frame in CFX. I want to calculate the aerodynamics loads on an airplane with spin. this can be done in Fluent by the Moving Reference Frame option. How can we do the same task in CFX without defining two fluid zones (inner and outer)? In my opinion, we should define two fluid zones and define a rotation speed for inner zone (in CFX). Thanks in advance.

 September 30, 2013, 18:32 #2 Super Moderator   Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 13,718 Rep Power: 106 If you are modelling a spinning aircraft in a far field - so there is no objects in the stationary field - then you can model this with just a single rotating frame of reference. No need for a stationary frame of reference. zkdkeen and Sbr_CFD like this.

 October 1, 2013, 05:36 #3 New Member   SBR Join Date: May 2013 Posts: 4 Rep Power: 6 Thank you very much for your reply. Is the following settings true for the purpose of rotating frame of reference? - Domain motion: rotating (with angular velocity: 5 rad s^-1) - Inlet / Outlet frame type: Rotating I can't obtain a converged solution with the mentioned settings. Thanks in advance...

 October 1, 2013, 20:46 #4 Super Moderator   Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 13,718 Rep Power: 106 You might need to set the boundaries as counter-rotating so they are as expected in the stationary frame of reference. zkdkeen likes this.

 Thread Tools Display Modes Linear Mode

 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 OffTrackbacks are On Pingbacks are On Refbacks are On Forum Rules

 Similar Threads Thread Thread Starter Forum Replies Last Post fu-ki-pa OpenFOAM 10 May 1, 2014 16:26 Jiuan FLUENT 4 May 24, 2010 21:58 M_W FLUENT 0 March 18, 2009 11:24 QinxueTan FLUENT 0 May 7, 2008 06:59 Ketan FLUENT 0 May 25, 2007 11:58