Inch of water to fps

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Please post formulas in separate topics, do not add formulas to someone else's post unless it relates to the original post. Also in the topic line make a note of what your posted formula is about . Thanks
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Flash
Posts: 773
Joined: Thu Feb 25, 2010 3:39 pm

Inch of water to fps

Post by Flash »

Formula - (inches of water^0.5)*66.2

Can some one give me the "long hand" version of this equation.

Inches of water(^)????
Do i add water to .5 or do i times... .5x.5 Can't seam to get the right answer.
Gordon
86rocco
Posts: 292
Joined: Thu Mar 04, 2010 9:01 pm

Re: Inch of water to fps

Post by 86rocco »

The carat ^ is the symbol used by most common spreadsheet programs for the exponent function so A^2 means A squared and inches of water^ 0.5 means inches of water to the exponent 0.5 which is just another way of saying the square root of the inches of water.
Flash
Posts: 773
Joined: Thu Feb 25, 2010 3:39 pm

Re: Inch of water to fps

Post by Flash »

can you put it in an example so my pee brain can grasp it. :oops:
Gordon
86rocco
Posts: 292
Joined: Thu Mar 04, 2010 9:01 pm

Re: Inch of water to fps

Post by 86rocco »

Sure, let's say the pitot pressure is 16 "WC, the velocity in fps is 66.2 x 16^0.5 = 66.2 x √16 = 66.2 x 4 = 264.8 fps.

BTW, have you seen my spreadsheet, haven't you?
Flash
Posts: 773
Joined: Thu Feb 25, 2010 3:39 pm

Re: Inch of water to fps

Post by Flash »

I lost that one when i switch computers THANK YOU.

And thanks for spelling it out for me. I get it now, and the ## work, Yeah!

thanks again for your time ;)
Gordon
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