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

Node-Based and Cell-Centred Patterns

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

Reply
 
LinkBack Thread Tools Display Modes
Old   April 7, 2002, 06:26
Default Node-Based and Cell-Centred Patterns
  #1
Konstantin
Guest
 
Posts: n/a
What deficiency and advantage have node-based and cell-centred patterns for control-volume discretisation of transport equation on unstructured grids ?
  Reply With Quote

Old   April 8, 2002, 14:19
Default Re: Node-Based and Cell-Centred Patterns
  #2
FRED_PSU
Guest
 
Posts: n/a
Well, for the same tetrahedral mesh for example, you get to compute the solution at 5 times more points using cell-centered calculations compared to vertex centered methods: more CPU time, more accuracy, more memory requirements,... it depends on what price you want to pay for your runs. With a cell-centered formulation, the control volume is straightforward: the cell volume and faces. Otherwise, you have to define faces that separate nodes, etc... I think CFX5 is node centered for instance...

Fred.
  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
[ANSYS Meshing] need to convert a cell based geometry into STL or CGNS kamran_kibria ANSYS Meshing & Geometry 0 September 15, 2011 05:14
Diff b/w node based & cell based methd Murthy FLUENT 0 April 2, 2008 13:18
which is better? vertex based or cell centered? neil Main CFD Forum 1 April 23, 2007 16:54
node based or cell centered Ts values acboge FLUENT 0 February 6, 2004 07:41
Cell Vertex Based FVM A. S. Main CFD Forum 1 January 28, 2002 08:46


All times are GMT -4. The time now is 03:36.