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 September 11, 2012, 08:55 Moved thread #1 New Member   elena shaporenko Join Date: Aug 2012 Posts: 1 Rep Power: 0 When I do mesh motion, nodes on boundary like WALL does not move. What can I do?

 September 11, 2012, 12:28 Resistant Coefficient (Ct) #2 New Member   khairun naim Join Date: Jul 2012 Posts: 3 Rep Power: 7 Hello, I am a student from Malaysia, doing a research about calculating Trimaran resistance in calm water using ANSYS CFX , so, I want to know how I can get the resistance coefficient for the ship, detail of the setup is: inlet; boundary details,subsonic, normal speed,22m/s, medium intensity-5% outlet; boundary detail, subsonic, static pressure, 0 pa wall; the hull itself, no slip wall symmetry; the bottom, side and top of domain, set with free slip wall domain; fluid domain,water,continuous solid,reference pressure=0 pa ,stationary Global initialisation; domain initialisation, cartesian, automatic with value, U=22m/s,V=0m/s and W=0m/s, medium intensity-5% I am new with ANSYS, and this setup is based from a basic tutorial I found in internet, if there is any error or suggestion, please feel free to tell me, below is the link for the image of my work...

 September 11, 2012, 19:19 #3 Super Moderator   Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 14,309 Rep Power: 110 I have moved this thread to a new thread. Please do not hijack other threads. Mesh motion - do the tutorial examples in CFX on mesh motion. Resistance - Use the force_x/y/z functions to get the force on the body and calculate resistance coefficient from there.

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