Slotted Rotors

[larry leung]

Coriolis force is the apparent deflection of the direction of motion or path of a moving object as it moves perpendicular to the axis of any rotating body, not just Earth (which was the first body where it was noted, by artillery engineer Coriolis). The greater the rate of rotation, the greater the apparent deflection. It would simply (in the case of water leaving a rotating brake disk) plot the path of the water in relation to the disk as the wheel rotates. Since there is actually no centrifugal force "throwing" water off of the disk either, neither percieved force (both the coriolis EFFECT and centrifugal force are percieved, not actual forces) they have little to do with how well water would be retained or "thrown" from a rotating brake disk. However, it would probably be better to have the trailing edge of rotor slots point towards the rear at the top of the disk, when looking at the disk from outside the car, so that the inertia of any water in the slots would not tend to trap the vater within the slot. 

- the Physics Teacher - 

------Original Message------
From: Michael Shields <shields at msrl.com>
To: KBATTPO <igor at s-cars.org>
Sent: October 2, 2000 6:40:49 PM GMT
Subject: Re: Slotted Rotors


In article <39D61449.3977A772 at s-cars.org>,
KBATTPO <igor at s-cars.org> wrote:
> Outside. You do not want to force the water inwards by the Coriolice
> force of the cut grooves so that it fights the Centrifugical force
> caused by the water-to-rotor friction.

The Coriolis force is the apparent torque placed on objects by the
earth's rotation.  It is not a major factor in brake cooling.

I agree with your conclusions though.
-- 
Shields.
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