# Sliding mesh and Momentum Theory

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

 March 9, 2004, 16:13 Sliding mesh and Momentum Theory #1 Lam Guest   Posts: n/a Sponsored Links Hi, I have model a ship propeller and rotate it using sliding mesh method. The CFD prediction seems lower than the experimental results. As your information, the CFD and experimental predictions on velocity (dimensionless) are 0.82 and 1.1 respectively. So, I try to understand how does the sliding mesh method working. There is a question, When the propeller is rotating at 1000rpm, does the system assume it as an actuator disk which the flow passing over uniformly without any energy losses like the assumption in momentum theory? For anybody who have experienced this problem may be can give me a hand. Is that any relation between the sliding mesh and momentum theory? What is the assumption of the sliding mesh method? Or may be I think too much... Lam

August 4, 2009, 22:17
#2
New Member

Khaled
Join Date: Apr 2009
Posts: 3
Rep Power: 10
I am facing same problem? Any Idea??

Thank you

Quote:
 Originally Posted by Lam ;110992 Hi, I have model a ship propeller and rotate it using sliding mesh method. The CFD prediction seems lower than the experimental results. As your information, the CFD and experimental predictions on velocity (dimensionless) are 0.82 and 1.1 respectively. So, I try to understand how does the sliding mesh method working. There is a question, When the propeller is rotating at 1000rpm, does the system assume it as an actuator disk which the flow passing over uniformly without any energy losses like the assumption in momentum theory? For anybody who have experienced this problem may be can give me a hand. Is that any relation between the sliding mesh and momentum theory? What is the assumption of the sliding mesh method? Or may be I think too much... Lam

 February 21, 2013, 17:08 #3 New Member   Join Date: Nov 2012 Posts: 4 Rep Power: 6 Hi, I am trying to do a sliding mesh setup aswell! Struggling to do the interfaces in icem, how do you do this? Thanks a lot for your help

 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 Liam CFX 28 July 16, 2013 08:24 f0208secretx FLUENT 2 December 10, 2012 04:41 kike FLUENT 1 August 1, 2011 17:07 Pankaj CFX 9 November 23, 2009 05:05 luan Siemens 4 June 29, 2008 18:38