|
[Sponsors] |
December 29, 2011, 23:23 |
A piston movement simulation
|
#1 |
Senior Member
mohammad
Join Date: Dec 2010
Location: UK
Posts: 245
Rep Power: 16 |
Hi everybody,
I want to simulate a moving piston with a harmonic motion to pump the air. In fact the FSI is not my case at all. All I wanna do is to simulate the resulting flow emerging from the piston harmonic movement as realistically as possible. Is it possible to do such a simulation in CFX? and How should I set the BCs? Regards |
|
January 5, 2012, 10:26 |
|
#2 |
Senior Member
Join Date: Apr 2009
Posts: 531
Rep Power: 21 |
The ball valve tutorial in the CFX doc is a good place to start. This tutorial uses the 6-DOF solver to set the motion of a boundary. In your case you don't need to do that, instead you need to write a CEL expression for the motion and use this to set the motion of the piston boundary.
|
|
January 8, 2012, 20:39 |
|
#3 |
Super Moderator
Glenn Horrocks
Join Date: Mar 2009
Location: Sydney, Australia
Posts: 17,852
Rep Power: 144 |
If the piston motion is known then simply do a moving mesh simulation. No need to do FSI or 6DOF.
|
|
Tags |
piston harmonic motion |
|
|
Similar Threads | ||||
Thread | Thread Starter | Forum | Replies | Last Post |
GUI crash and simulation engine still running | RPJones | FLOW-3D | 2 | November 9, 2010 09:18 |
velocity profile export from a simulation onto another | sudhirlv | STAR-CCM+ | 1 | September 12, 2010 19:57 |
[ask] shock absorber simulation | dik | Main CFD Forum | 1 | December 17, 2009 02:32 |
Replacing mesh while running a simulation | akultane | CFX | 1 | November 15, 2009 14:46 |
engines with piston bowls | Gareth | FLUENT | 3 | June 19, 2003 03:50 |