I was looking at both the calculator and theory for calculating the K factor through elargements and contractions and think you might have an error.
It looks like you are referencing Crane, but I think you added a squared term.
For sudden contraction you have:
K1 = 0.5 * (1  beta^2) ^2
The Crane reference has it as:
K1 = 0.5 * (1  beta^2)
The squared term is only in the sudden enlargement term (which you have):
K1 = (1  beta^2) ^2
Just something I found.
Error in Sudden and Gradual Contraction K Factor?

 Posts: 1
 Joined: Thu Jun 12, 2014 7:43 pm
Re: Error in Sudden and Gradual Contraction K Factor?
Well spotted, thank you for correction!
I have just made change in calculator and theory page itself.
I have just made change in calculator and theory page itself.
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