CFD Online Logo CFD Online URL
www.cfd-online.com
[Sponsors]
Home > Forums > CFX

cylinder and piston

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

Reply
 
LinkBack Thread Tools Display Modes
Old   June 10, 2010, 07:16
Default cylinder and piston
  #1
New Member
 
mohsen
Join Date: May 2010
Posts: 2
Rep Power: 0
m.shams is on a distinguished road
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








Attached Images
File Type: jpg 1.JPG (94.0 KB, 46 views)
Attached Files
File Type: txt Fluid Flow_001.txt (25.5 KB, 34 views)
m.shams is offline   Reply With Quote

Old   June 10, 2010, 08:13
Default
  #2
Super Moderator
 
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 10,662
Rep Power: 84
ghorrocks has a spectacular aura aboutghorrocks has a spectacular aura aboutghorrocks has a spectacular aura about
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.
ghorrocks is offline   Reply With Quote

Old   June 10, 2010, 15:21
Default
  #3
New Member
 
mohsen
Join Date: May 2010
Posts: 2
Rep Power: 0
m.shams is on a distinguished road
my problem solved with your guid
thanks a lot for your reply.
m.shams is offline   Reply With Quote

Reply

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
No pressure increase with compressing piston Erik CD-adapco 0 December 23, 2008 05:51
simulate a 4-stroke piston cylinder san CFX 3 October 11, 2006 13:28
help to simulate 4-stroke piston cylinder san CD-adapco 2 September 29, 2006 13:37
CFD Work on 4-stroke piston cylinder san FLUENT 0 September 20, 2006 13:27
Simulation of hydraulic piston cylinder assembly Vijay FLUENT 0 January 13, 2006 12:39


All times are GMT -4. The time now is 07:59.