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Help understanding coefficient formula 
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#1
Jun1114, 08:26 AM

P: 9

Hi,
I am trying to understand an equation which I have come across for determining a coefficient based on the size of dimples on a golf ball : C_{D_Size} = R_{1}·(3.125·(c/d)+0.25) In the description, it indicates that R_{1} indicates a weight ratio of C_{D_Size}. Can anyone please explain what R_{1} is and how it is to be calculated? FYI. the paper this came from can be found on this link : http://www.ijimt.org/papers/419D0260.pdf Many Thanks, Andy. 


#2
Jun1214, 08:57 AM

P: 7

A quick look at that paper suggests to me that R1 and R2 are just fitting constants. R1 can be calculated by taking values from figure 5 and substituting them into equation 8 (or better yet, doing it for all values and then taking an average). R1 looks to me to be very close to 1, perhaps slightly less.



#3
Jun1214, 07:32 PM

P: 9

Andy. 


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