CFD Online Logo CFD Online URL
Home > Forums > Main CFD Forum

Coordinates transmation/solving in phyical space

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

LinkBack Thread Tools Display Modes
Old   August 4, 2005, 09:26
Default Coordinates transmation/solving in phyical space
Posts: n/a

I'm now trying to modify my cartesian FVM Navier Stokes code to solve flow around an airfoil. I'm aware that I can either solve in the physical space ie generate structured grids and solve using interpolation or I can do coordinate transformation on my existing equation.

Anyone care to comment which is a more preferred mtd, in terms of speed and ease of programming? Or it's simply a matter of choice?

Moreover, there is the possibility that the code will be extending to 3D. Btw, I'm using a fractional step mtd to solve the NS eqns.

  Reply With Quote

Old   August 4, 2005, 10:16
Default Re: Coordinates transmation/solving in phyical spa
Posts: n/a
Solving in physical space is preferred since it is easier to deal with grid control for viscous computations which is particularly important not only for turbulent flow but also for high reynolds number laminar flow. Coordinate transformation requires grid metrics which not only makes coding that much more difficult but you also need to ensure that the transformed equations preserve uniform flow by satisfying the so-called Geometric Conservation Law (GCL).
  Reply With Quote


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
Cell Centroid out of Space coordinates patrick FLUENT 0 February 9, 2009 06:03
Where to find airfoils with more coordinates pts? KB Main CFD Forum 2 March 24, 2008 00:18
Coordinates transmation/solving in phyical space zonexo Main CFD Forum 1 August 4, 2005 23:57
Coordinate's tranformation tommy FLUENT 0 February 13, 2004 03:19
Calculation in cylindrical coordinates Franz Wingelhofer CFX 0 December 28, 1999 08:46

All times are GMT -4. The time now is 19:21.