CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Periodicity in wet clutch simulation

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

LinkBack Thread Tools Display Modes
Old   February 18, 2014, 11:33
Default Periodicity in wet clutch simulation
New Member
Join Date: Feb 2014
Posts: 4
Rep Power: 5
Tarin is on a distinguished road
Sponsored Links
Dear friends,

I’m trying to simulate a continuously slipping wet clutch to see the thermal evolution in the discs. Due to the thermal symmetry I can simulate only half of the friction disc rotating against half of a reaction plate which is stationary (I mean half in thickness).

I have defined the cell zone corresponding to the reaction plate as stationary while the cell zone corresponding to the friction disc is defined activating the Mesh Motion and defining a rotating speed.

The lining in the friction disc has radial grooving pattern. That means that when the clutch is closed and the friction disc is slipping against the reaction plate there will be zones where we will have solid-solid sliding while in the groove I will have fluid.

Concerning the interfaces I have the following: 1 interface for the reaction plate which I couple with the 2 interfaces of the friction disc (1 for the fluid in the groove and 1 for the rest, which will be solid-solid zones ). Then I generate volumetric heat source in a thin wall in the shadow face corresponding to the solid-solid region.

It seems to work OK when simulating the whole system but it is a rotational periodic geometry and I would like to simulate only a sector of the discs. The problem comes when defining the interfaces: This time I select the interface corresponding to the reaction plate and the interfaces corresponding to the friction disc and create the interface after activating “Periodic repeats”. In this moment a warning message appears saying that “there are no periodic zones touching the interface zone with id 13”

I think the reason is that there are surfaces (solid-solid or fluid) in the interface that do not touch periodic contours and that’s why I can’t do “Periodic Repeats”

And when initializing the solution an error appears: FLUENT received fatal signal (ACCESS_VIOLATION)

How can I solve it?????

Thank you in advance!!!!!
Attached Images
File Type: jpg Clutch simulation.JPG (67.6 KB, 28 views)
Tarin is offline   Reply With Quote
Sponsored Links


clutch simulation, cooling, heat transfer, periodic condition, periodic motion

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
[ICEM] Two kinds of periodicity in one project PS_KA ANSYS Meshing & Geometry 3 January 22, 2014 05:09
[ICEM] Hybrid Meshing and Periodicity RalfBecker ANSYS Meshing & Geometry 0 October 31, 2013 07:31
GUI crash and simulation engine still running RPJones FLOW-3D 2 November 9, 2010 09:18
clutch simulation novice Siemens 0 September 5, 2005 01:11
3-D Contaminant Dispersal Simulation Apple L S Chan Main CFD Forum 1 December 23, 1998 11:06

Sponsored Links

All times are GMT -4. The time now is 10:26.