Re: [WoodGas] Pitot controversy
- View SourceJust a note..Henri Pitot did not fly aeroplanes nor did Henry Darcy. Darcy
was a hydraulics engineer and developed to the Pitot-Static tube to measure
water velocity in his aqueduct/water distribution system in France.
My wood gasifier project has no intentions of leaving terra firma, unless I
get it wrong .......
----- Original Message -----
From: "Wes Jones" <dooger@...>
Sent: Monday, May 07, 2007 11:23 PM
Subject: Re: [WoodGas] Pitot controversy
> On Mon, 07 May 2007 23:23:59 -0400, <rkurt@...> wrote:
>> Wes Jones wrote:
>>> I think what may be confusing this issue a bit is that the static ports
>>> not need to be co-located with the tube. On the older Cessna I used to
>>> fly a lot the pitot tube was just a piece of 1/4" aluminum tubing coming
>>> out of the wing leading edge and the static port was on the side of the
>>> fuselage just ahead of the door.
>> Yes, but it wasn't just put there at random. It took a whole lot of
>> testing and test flying to determine a point on the aircraft that would
>> show the least variation of pressure with the aircraft in different
>> attitudes and at different speeds. Possibly, there was also another
>> static port on the other side of the aircraft, to help balance out
>> sideslipping effects.
> No, there was just the one static port. And last I checked most
> gassifiers are not designed to move very fast. :-)
>> If you stick the dynamic pick up tube inside a containment that operates
>> at changing pressures and measure the dynamic (ram) pressure due to gas
>> flow, on the end of the pick up tube against ambient pressure outside
>> that cointainment, then your dynamic pressure is going to vary in
>> unpredictable ways and your velocity readings will be way off.
> OK, I see that.
> Best, wes
> Yahoo! Groups Links
- View SourceOn Tue, 08 May 2007 13:07:34 -0400, Barclay Labs <barclay@...>
> Just a note..Henri Pitot did not fly aeroplanes nor did Henry Darcy.Most modern use and development has been for aeronautical stuff though.
> was a hydraulics engineer and developed to the Pitot-Static tube to
> water velocity in his aqueduct/water distribution system in France.
> My wood gasifier project has no intentions of leaving terra firma,Kaboom! :-(
> unless I
> get it wrong .......