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Lesson Learned: Drag coefficient equation

asked Mar 23, 2014 in Process by odadmin (21,030 points) | edited Aug 15, 2014 by odadmin
commented Mar 23, 2014 by pasmith (3,320 points)
Thanks for sharing.
commented Mar 23, 2014 by wozniakmic (3,460 points)
Grande information.

Merci beaucoup.
commented Mar 23, 2014 by lampanda (2,450 points)
Thanks you. I just learned something new today.

1 Answer

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answered Oct 14, 2014 by odadmin (21,030 points)
 
Best answer
I wanted to share my Regression equation for calculating Drag coefficient:

\(Y = a1 + {b1\over ln(x)}+ {c1\over ln(x)^2}+ {d1\over ln(x)^3}+ {e1\over ln(x)^4}+ { f1 \over ln(x)^5}\)

Where:

Y = Drag Coefficient
x = Drag Coefficient x (Re)2
a1 = -2.71
b1 = 101.72
c1 = -1309.58
d1 = 7839.31
e1 = -14897.30
f1 = 9989.59
...