2D simulation

Michael.J · April 6, 2010, 20:30

Hi,

I'd like to run 2D simulation. Frankly speaking i am quite confused cause no tutorial describes how to make 2D runs, as well as i have not found any way to create 2D simulation. I tried creating surface geometry in DM and plain strain mesh in meshing module but no luck. If someone could guide me through this i would be very greatfull.

I am using CFX 12 Academic License.

Regards

dvolkind · April 7, 2010, 11:22

You can't run 2D simulation in CFX. Either use Fluent or quasi-2D like in "Buoyant Flow in a Partitioned Cavity" tutorial.

Michael.J · April 7, 2010, 14:55

Thank you very much for reply. I don't know how i missed this tutorial. This quasi 2D solution suits my needs quite well

Regards

wjy · April 8, 2010, 10:02

As I know, CFX simulate 2D problem using 2 layer mesh in one direction,eg. in Z direction, and set to symmetry boundary conditon, the user manual described somewhere

wish to useful

mach000 · April 8, 2010, 10:35

Create a 2D mesh and then extrude it in the third direction.
Along this direction define only one layer of nodes.

Pay attention to the lenght of this extrusion. Too small can give you a very high aspect ratio

ghorrocks · April 8, 2010, 19:12

This question has been asked a million times - so I FAQ'ed it. Feel free to add to the FAQ if you wish!

http://www.cfd-online.com/Wiki/Ansys..._simulation.3F

April 6, 2010, 20:30	2D simulation	#1
Michael.J New Member Michael Jasiczek Join Date: Feb 2010 Posts: 13 Rep Power: 16	Hi, I'd like to run 2D simulation. Frankly speaking i am quite confused cause no tutorial describes how to make 2D runs, as well as i have not found any way to create 2D simulation. I tried creating surface geometry in DM and plain strain mesh in meshing module but no luck. If someone could guide me through this i would be very greatfull. I am using CFX 12 Academic License. Regards

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Replacing mesh while running a simulation	akultane	CFX	1	November 15, 2009 14:46
FSI TWO-WAY SIMULATION	Smagmon	CFX	1	March 6, 2009 14:24
Continuous vs interrupted simulation	sega	OpenFOAM Running, Solving & CFD	4	November 3, 2008 15:29
Fire simulation using FDS from NIST	Jens	Main CFD Forum	1	January 22, 2004 02:53
3-D Contaminant Dispersal Simulation	Apple L S Chan	Main CFD Forum	1	December 23, 1998 11:06

April 7, 2010, 11:22		#2
dvolkind Member Dmitry Volkind Join Date: Jan 2010 Location: Ekaterinburg, Russia Posts: 64 Rep Power: 16	You can't run 2D simulation in CFX. Either use Fluent or quasi-2D like in "Buoyant Flow in a Partitioned Cavity" tutorial.

April 7, 2010, 14:55		#3
Michael.J New Member Michael Jasiczek Join Date: Feb 2010 Posts: 13 Rep Power: 16	Thank you very much for reply. I don't know how i missed this tutorial. This quasi 2D solution suits my needs quite well Regards

April 8, 2010, 10:02		#4
wjy New Member anonymous Join Date: Apr 2010 Posts: 2 Rep Power: 0	As I know, CFX simulate 2D problem using 2 layer mesh in one direction,eg. in Z direction, and set to symmetry boundary conditon, the user manual described somewhere wish to useful

April 8, 2010, 10:35		#5
mach000 Member Ciro Cannavacciuolo Join Date: Mar 2009 Posts: 35 Rep Power: 17	Create a 2D mesh and then extrude it in the third direction. Along this direction define only one layer of nodes. Pay attention to the lenght of this extrusion. Too small can give you a very high aspect ratio

April 8, 2010, 19:12		#6
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,872 Rep Power: 144	This question has been asked a million times - so I FAQ'ed it. Feel free to add to the FAQ if you wish! http://www.cfd-online.com/Wiki/Ansys..._simulation.3F