Velocity profile in U-pipe

mariam.sara · December 4, 2013, 15:48

Hello i have U-tube pipe flow as shown in picture? i need to ask how i can plot
velocity profile in different sections along this pipe?

Mariam

flotus1 · December 4, 2013, 16:10

You could add lines where you want to plot the profiles. The tool for creating lines is hidden in the "surface" menu item (upper center of the screen).
Then in the "plots" tab (lower left of the screen) you can create 2d figures.

mariam.sara · December 4, 2013, 16:36

Hi thanks for the reply. The problem my geometry not straight its like arc as seen
on the picture? Furthermore its 3d how the coordinates for x,y,z will become?

Zaktatir · December 4, 2013, 17:32

As stated by flotus it is hidden in surface therey you may define lines/Cut line Sample lines. You have arc geometry that means you need curved lines that will be quite difficult to define them. If you have cFD-Post you define polylines through intersections. You have to do some work to carry out this directly in Fluent!

mariam.sara · December 5, 2013, 08:19

Thanks Zaktatir for the answer. Yes i have CFD-post but how i can define poly-lines throw the intersection ? which sections i need to intersect with? may you give me illustration about it?

Thanks
mariam

Zaktatir · December 7, 2013, 06:12

profile along what first of all?

mariam.sara · December 7, 2013, 15:11

thanks again for the answer. I want plot it as vertical profiles over the curvature (i.e. along the u-pipe)?

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December 4, 2013, 16:10		#2
flotus1 Super Moderator Alex Join Date: Jun 2012 Location: Germany Posts: 3,427 Rep Power: 49	You could add lines where you want to plot the profiles. The tool for creating lines is hidden in the "surface" menu item (upper center of the screen). Then in the "plots" tab (lower left of the screen) you can create 2d figures.

December 4, 2013, 16:36		#3
mariam.sara Senior Member Join Date: Jan 2011 Posts: 339 Rep Power: 16	Hi thanks for the reply. The problem my geometry not straight its like arc as seen on the picture? Furthermore its 3d how the coordinates for x,y,z will become?

December 4, 2013, 17:32		#4
Zaktatir Senior Member Join Date: Jan 2010 Location: Germany Posts: 268 Rep Power: 17	As stated by flotus it is hidden in surface therey you may define lines/Cut line Sample lines. You have arc geometry that means you need curved lines that will be quite difficult to define them. If you have cFD-Post you define polylines through intersections. You have to do some work to carry out this directly in Fluent!

December 5, 2013, 08:19		#5
mariam.sara Senior Member Join Date: Jan 2011 Posts: 339 Rep Power: 16	Thanks Zaktatir for the answer. Yes i have CFD-post but how i can define poly-lines throw the intersection ? which sections i need to intersect with? may you give me illustration about it? Thanks mariam

December 7, 2013, 06:12		#6
Zaktatir Senior Member Join Date: Jan 2010 Location: Germany Posts: 268 Rep Power: 17	profile along what first of all?

December 7, 2013, 15:11		#7
mariam.sara Senior Member Join Date: Jan 2011 Posts: 339 Rep Power: 16	thanks again for the answer. I want plot it as vertical profiles over the curvature (i.e. along the u-pipe)?