Normal Vector on Curved Surfaces -- CFD Online Discussion Forums

July 2, 2001, 05:35	Normal Vector on Curved Surfaces	#1
Karl Guest Posts: n/a	For a radial fan i have to calculate the rate of mechanical work performed at moving walls, which are fixed in the relative system. To calculate this work i need the compute the unit normal vector on the wall area elements. Normally, these elements have curved surfaces (eg. blades). How can i access these normal vectors with a UDF ? Or is it possible do compute them with a simple custom field function ?

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
"wall normal velocity" on moving surfaces (FSI)	andey	CFX	6	February 24, 2010 03:37
[CAD formats] my stl surface is seen as just a line	rcastilla	OpenFOAM Meshing & Mesh Conversion	2	January 6, 2010 02:30
Sampling curved surfaces	sega	OpenFOAM Post-Processing	0	July 12, 2009 12:40
NACA0012 geometry/design software needed	Franny	Main CFD Forum	13	July 7, 2007 16:57
Law of the wall on curved surfaces	Rasputin	Main CFD Forum	3	November 2, 1998 10:28

All times are GMT -4. The time now is 22:50.