[CR]Reynolds Numerology, was Geezers, etc.

(Example: Framebuilding:Technology)

Date: Thu, 18 Jan 2001 16:20:51 -0500
From: "Jim Foreman" <JIMFORE@compuserve.com>
Subject: [CR]Reynolds Numerology, was Geezers, etc.
To: "INTERNET:rfitzger@emeraldis.com" <rfitzger@emeraldis.com>, Classic Rendezvous <classicrendezvous@bikelist.org>


Message text written by INTERNET:rfitzger@emeraldis.com
>Now I'm intrigued. How does one accurately compute one's Reynolds number?

Addition? Multiplication? Present machines only? Is it a current thing, or a cumulative effect? How does one arrive at the number when different Reynolds tubes are used in the same frame set?<

Actually, it's just a joke. There is no connection between Reynolds Number and Reynolds tubing numbers used in bicycle frames. Reynolds Number is a way of expressing the density of a fluid (air) and the time it takes for a slug of air to travel the chord of a wing. It's used in computing stall speeds, flutter speed and efficiency of the airfoil. Reynolds tubing is numberd as the alloy of steel it is made from. The higher the number the later it was developed and the type of welding it was designed to do best, not necessarily better. The only thing that the two have in common is a name.

Jim

http://www.geocities.com/jimforetales/