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From: "jbker@juno.com" <jbker@juno.com>
Date: Mon, 4 Apr 2005 12:07:23 GMT
To: flyrotary@lancaironline.net
Subject: Re: [FlyRotary] Re: A lot to learn ! Re: Cooling -Learned a lot
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Message-Id: <20050404.050822.10313.205011@webmail24.nyc.untd.com>


Charlie E wrote:

At the risk of embarrassing myself with a display of misunderstanding 
the physics of it all, should your pressure sensors be measuring dynamic 
pressure or static? Seems like I remember Tracy's measurement pics 
having foam chunks over the pressure sensors to remove the dynamic 
component of the pressure measurement. I couldn't remember if your setup 
has that (& I really don't know if it should, either).

Charlie
---------------------------------------------
I am trying to establish how much air is going through the radiator by measuring the dynamic pitot (total) pressure minus the static in the very good looking bellmouth at the inlet. I am also trying to measure the air temp in and out and the water temp in and out. With this we can see if it all makes an energy balance. Also want to measure the total in front and behind the radiator to see how much loss, i.e drag the radiator is contributing.

Currently most of this effort is on the back seat because I can live with the current cooling, but have to isolate the noise, vibration source that is exciting the cockpit level.

Bernie