How can arc-length be x-coordinate of a chart?

shenying0710 · December 28, 2012, 00:42

Hi, my friends,
I want to make a chart to show the pressure distribution along a curve on a blade, but I don't know how to make the arclength-coordinate. It seems that there's no such variable in the list of variable selector.
Thank you.
Shenying

ghorrocks · December 28, 2012, 04:22

If you make a line object along a blade surface you should have length along the line as a variable.

shenying0710 · December 28, 2012, 23:53

Thanks, Glenn. I see a variable named 'length' in the list of the variable selector, but from the final chart, I feel it's not the length along the object line.
Snap2.jpg

shenying0710 · December 29, 2012, 00:31

The chart:
Snap3.jpg

ghorrocks · December 29, 2012, 04:40

I am not sure what is going on there. I would export the data along the line and see if an external package (excel, matlab, whatever) makes sense of it.

December 28, 2012, 00:42	How can arc-length be x-coordinate of a chart?	#1
shenying0710 New Member Shen Ying Join Date: Jan 2012 Posts: 22 Rep Power: 14	Hi, my friends, I want to make a chart to show the pressure distribution along a curve on a blade, but I don't know how to make the arclength-coordinate. It seems that there's no such variable in the list of variable selector. Thank you. Shenying

Similar Threads
Thread	Thread Starter	Forum	Replies	Last Post
[blockMesh] meshing a cylinder	Nico A.	OpenFOAM Meshing & Mesh Conversion	6	June 19, 2017 14:12
[blockMesh] apparently the mesh doesn't want to be created in one direction	Maxime Thomas	OpenFOAM Meshing & Mesh Conversion	1	August 18, 2012 06:05
[blockMesh] error EOF in blockMesh	Ahmed Khattab	OpenFOAM Meshing & Mesh Conversion	7	May 17, 2012 00:37
[blockMesh] meshing a cylinder	Nico A.	OpenFOAM Meshing & Mesh Conversion	0	April 7, 2011 11:09
weird error during blockMesh	SePe	OpenFOAM	1	October 25, 2010 10:31

December 28, 2012, 04:22		#2
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,700 Rep Power: 143	If you make a line object along a blade surface you should have length along the line as a variable.

December 28, 2012, 23:53		#3
shenying0710 New Member Shen Ying Join Date: Jan 2012 Posts: 22 Rep Power: 14	Thanks, Glenn. I see a variable named 'length' in the list of the variable selector, but from the final chart, I feel it's not the length along the object line. Snap2.jpg

December 29, 2012, 00:31		#4
shenying0710 New Member Shen Ying Join Date: Jan 2012 Posts: 22 Rep Power: 14	The chart: Snap3.jpg

December 29, 2012, 04:40		#5
ghorrocks Super Moderator Glenn Horrocks Join Date: Mar 2009 Location: Sydney, Australia Posts: 17,700 Rep Power: 143	I am not sure what is going on there. I would export the data along the line and see if an external package (excel, matlab, whatever) makes sense of it.