In which coordinates system is expressed velocity -- CFD Online Discussion Forums

April 12, 2013, 04:39	In which coordinates system is expressed velocity	#1
malaboss Member Malik Join Date: Dec 2012 Location: Austin, USA Posts: 53 Rep Power: 13	Hi FOAMers ! I am currently working on a cylinder and trying to optimize the mesh in the domain that contains the cylinder. I would like to minimize the error due to "mesh alignment". For that, I need to have the velocity on each cell and the coordinates of the center of each cell. I made my mesh with the blockMesh utility. In the file U in each temporal folder, I can see that I have the velocity vector expressed in a coordinates system. My first question is : in which coordinate system is it expressed ? : Is it the local coordinate system of the cell ? Or every cell of each block defined in blockmesh dict has the same coordinate system ? This is a problem for me since I have some edges which are curved. Then the coordinate system of each cell with rotate from the reference defined for a block in blockMeshDict. I can give you more details if you need it

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 Off Pingbacks are On Refbacks are On Forum Rules

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
Capture x,y,z velocity at points with coordinates	startup0820	Fluent UDF and Scheme Programming	1	October 18, 2012 05:35
Problem with time average tangential velocity in swirl flow.	lakhi	FLUENT	5	July 18, 2012 16:28
velocity components in cylindrical coordinates	iperten	CFX	2	March 31, 2009 08:22
High velocity grinding and classification system	Sri	FLUENT	3	July 30, 2008 10:35
Need ideas-fuel delivery system	Jan	Fidelity CFD	0	October 9, 2006 04:30

All times are GMT -4. The time now is 10:48.