CFD Online Logo CFD Online URL
Home > Forums > FLUENT

Dynamic cylinder mesh

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

LinkBack Thread Tools Display Modes
Old   March 4, 2014, 10:46
Unhappy Dynamic cylinder mesh
New Member
Jack Holmes
Join Date: Feb 2014
Posts: 9
Rep Power: 5
jackholmes is on a distinguished road
Hi I want to create a very simple Cylinder radius 38.1mm and length 111.1 mm that compresses then expands to its original size.

I am stuggling on how to even start.

Any help would be great


jackholmes is offline   Reply With Quote

Old   March 4, 2014, 14:14
New Member
Join Date: Aug 2013
Location: UK
Posts: 16
Rep Power: 6
Mack is on a distinguished road
Hi Jack,

As your geometry is quite simple, you can create it directly on your meshing program (ICEM, gambit..), instead of generating it on a CAD software. There is no problem that you do not have inlets or outlets, just define the walls.
After uploading the mesh on fluent you can use the in-cylinder option, defining the stroke (through the crank radius) and the speed of the movement (through the crank shaft speed). Remember to take care about the clearance at the smallest volume position, otherwise you will have negative volumes during the mesh movement. There is a 2-D in-cylinder tutorial for fluent (internal combustion engine), which I recommend you take a look.

Hope it helps,

Mack is offline   Reply With Quote


cylinder, dynamic mesh, fluent, piston

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
3-d mesh gambit (cylinder within a cylinder) Jason ANSYS Meshing & Geometry 29 October 30, 2015 09:59
[GAMBIT] How to mesh a cylinder with fine to coarse cells Bharatt ANSYS Meshing & Geometry 3 August 12, 2013 00:45
Dynamic Mesh "Shadow Wall" thezack FLUENT 0 June 4, 2013 22:09
Dynamic Mesh Problem. Tom Clark FLUENT 9 July 7, 2010 07:56
Icemcfd 11: Loss of mesh from surface mesh option? Joe CFX 2 March 26, 2007 18:10

All times are GMT -4. The time now is 00:55.