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June 10, 2010, 08:16 |
cylinder and piston
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#1 |
New Member
mohsen
Join Date: May 2010
Posts: 2
Rep Power: 0 |
Hi every one Excuse me if my English is not good. I am beginner in cfx. i simulated cylinder and piston. figure below indicates the geometry and meshes. For simulating piston I used mesh deformation feature and analyze type is transient. but when solving error below occured. If possible, please guide me. Thanks a lot Error: Fluid Flow_003 has terminated with errors. Run concluded at: Wed Nov 10 15:25:42 2010 Results are in C:\piston- 1 domain\piston_files\dp0\CFX\CFX\Fluid Flow_003.res the *.out file of solution attached to this post |
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June 10, 2010, 09:13 |
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#2 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,871
Rep Power: 144 |
You have defined the piston motion as a constant - 2[m]. This means the mesh will jump to this position in the first time step and stop there. This is wrong, you have to write the displacement as a function of time, maybe a sin() function or something so the piston can move gradually as a function of time from the starting location to the finish location.
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June 10, 2010, 16:21 |
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#3 |
New Member
mohsen
Join Date: May 2010
Posts: 2
Rep Power: 0 |
my problem solved with your guid
thanks a lot for your reply. |
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