volume flow of "Tea Leaf Paradox"

IrieConqueror · January 5, 2021, 10:07

Hey guys,

i'm doing a simulation of a system like the "Tea leaf paradox". I would like to estimate the volume flow of the secondary flow in cfd post. I setup a "Surface of Revolution" location but therefor I need the normalized vectors of the velocity on the surface. I don't know how to do that. Any suggestions? Other solutions?

Thanks in advance.

evcelica · January 5, 2021, 15:39

When plotting vectors on a surface, there are several options, including tangential and normal. I would think one would want to show a flat plane through the center of the cylinder and show tangential velocity on that plane, just like the image with the blue line on that wikipedia page you linked. https://en.wikipedia.org/wiki/Tea_le...lustration.svg
But your way should work as well.

January 5, 2021, 10:07	volume flow of "Tea Leaf Paradox"	#1
IrieConqueror New Member Join Date: Jan 2020 Location: Germany Posts: 24 Rep Power: 6	Hey guys, i'm doing a simulation of a system like the "Tea leaf paradox". I would like to estimate the volume flow of the secondary flow in cfd post. I setup a "Surface of Revolution" location but therefor I need the normalized vectors of the velocity on the surface. I don't know how to do that. Any suggestions? Other solutions? Thanks in advance.

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January 5, 2021, 15:39		#2
evcelica Senior Member Erik Join Date: Feb 2011 Location: Earth (Land portion) Posts: 1,167 Rep Power: 23	When plotting vectors on a surface, there are several options, including tangential and normal. I would think one would want to show a flat plane through the center of the cylinder and show tangential velocity on that plane, just like the image with the blue line on that wikipedia page you linked. https://en.wikipedia.org/wiki/Tea_le...lustration.svg But your way should work as well.