----- Original Message -----

From: Thomas y Reina Jakits

To: Rotary motors in aircraft

Sent: Wednesday, February 28, 2007 2:17 PM

Subject: [FlyRotary] Re: Pinched ducts was : [FlyRotary] Re: cowl openings for water radiators

Thats out of K&N?

 

Thomas

----- Original Message -----

From: Ed Anderson

To: Rotary motors in aircraft

Sent: Wednesday, February 28, 2007 2:01 PM

Subject: [FlyRotary] Re: Pinched ducts was : [FlyRotary] Re: cowl openings for water radiators

 This slide shows a diagram of the boundary layer in the duct and the pressure gradient opposing it leading eventually to separation and turbulence and general lowering of cooling capability.

 

Ed

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