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Re: The Freau Number
- To: tesla@xxxxxxxxxx
- Subject: Re: The Freau Number
- From: "Tesla list" <tesla@xxxxxxxxxx>
- Date: Mon, 20 Jun 2005 11:45:02 -0600
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- Resent-date: Mon, 20 Jun 2005 11:52:12 -0600 (MDT)
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Original poster: Steve Conner <steve@xxxxxxxxxxxx>
However, the most important feature of the Freau equation IMO is the SQRT
function, indicating that the average energy density of the secondary
volume can decrease as the coil gets larger.
Bingo! That explains why bigger coils are more efficient then! Trying to
push big sparks out of a small coil means you are generating an excessively
high energy density in and around the secondary, so it just burns up or
flashes over.
>I should point out that F is already taken by a very important parameter
in >coil work
Oh? Which one... Fear? Funkiness? Frequency even ;) I would vote for Fr,
since the Reynolds number is Re, the Prandtl number is Pr, etc. But I guess
Fr still sounds too much like Resonant frequency.
Steve Conner