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-   -   Cd-data for a sphere (http://www.cfd-online.com/Forums/main/70361-cd-data-sphere.html)

sega November 22, 2009 06:27

Cd-data for a sphere
 
Hello World.

Does anybody have digital (tabulated) data for the drag coefficients of a sphere?
I'm searching for the Cd-over-Re-curve in some kind of processable form.
This maybe Excel, MATLAB or simple ASCII-form.

Anything I have found so far is in graphical form like the one below.

http://www.aerospaceweb.org/question.../drag-disk.jpg

Thanks so far!
Have a nice day.
Sebastian

f-w November 23, 2009 13:37

This looks good:
http://www.ma.iup.edu/projects/CalcD...rag/drag6.html

sega January 9, 2010 19:22

This is great! Thank you!
Does anyone have this kind of data for dimpled balls?
Or can tell me at which Reynolds number the transition laminar-turbulent will occur?


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