Plotting on a curve with varying x and y

Shamoon Jamshed · October 3, 2016, 12:27

Hello,

I want to plot velocity along a line which is straight but with varying x and y coordinates. The z is constant. Please see the attached figure. For this I am unable to get how to get some constant length which entertains both x and y.

Regards,

Shamoon Jamshed · October 3, 2016, 12:57

Ok I sorted out, I made a custom field function and defined an r = sqrt(x*x+y*y) but the problem still persist, I can't get shear stress on wall which is at maximum r and the velocity is also not getting right.

LuckyTran · October 6, 2016, 00:55

What is the problem? Just be aware that Fluent will have to interpolate the cell values onto your line probe. Getting wall shear stress also involves some interpolation/extrapolation.

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October 3, 2016, 12:57		#2
Shamoon Jamshed Senior Member Shamoon Jamshed Join Date: Apr 2009 Location: Karachi Posts: 377 Rep Power: 18	Ok I sorted out, I made a custom field function and defined an r = sqrt(xx+yy) but the problem still persist, I can't get shear stress on wall which is at maximum r and the velocity is also not getting right.

October 6, 2016, 00:55		#3
LuckyTran Senior Member Lucky Join Date: Apr 2011 Location: Orlando, FL USA Posts: 5,674 Rep Power: 65	What is the problem? Just be aware that Fluent will have to interpolate the cell values onto your line probe. Getting wall shear stress also involves some interpolation/extrapolation.