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Old   March 20, 2008, 03:41
Default circulation
  #1
sudhakar
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Hi, I have simulated flow past circular cylinder at Re of 40 and am able to capture the attached vortices downstream of the cylinder. Now, I want to measure the circulation of both the vortices. Is there any simple way to measure it? Shall I plot vector plot of velocity in tecplot and create a closed contour around which we get circulation automatically?
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Old   March 28, 2008, 13:59
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omkar
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search for "biot savarts law" on internet which will tell you how to measure circulation of vortices(some good pdfs are available). If you can't find get back to me I will mail you some pdf's.

I am also working on low reynolds number flow around a pair of square cylinders. My code is able to capture the vortices downstream but I don't have any concrete data to validate my code. Do you have any literature on the same?
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Old   March 31, 2008, 00:49
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sudhakar
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hi, thanx for your reply.. I will search for it.. I have references for flow past two square cylinders. But what exactly your Re and in which form they are arranged?
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Old   March 31, 2008, 03:47
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omkar
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I am analysing flow upto Re 120. The two square cylinders are in line with their faces perpendicular to the direction of flow and separated by some distance. I hope this much description will help you in visualizing the domain.
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Old   June 16, 2010, 06:16
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Hamed
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Dear Omkar
I am modeling 3D piston\cylinder vortex generator in ANSYS CFX. My reynolds is above 2000. Is there any way to calculate the circulatin in CFX-post?

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Old   June 16, 2010, 08:00
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kumar
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Hi sudhakar
I am working on the flow over the circular cylinder using my own code. What are the datas you have consider to validate your code.
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