Aerodynamics and locating a source for engine cooling.

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yankeeclipper

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Jun 1, 2009
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Assume for a moment that I was designing a cigar shaped pusher, with the engine mounted somewhere in the rear of the cigar (really, it's just a cigar). Where might one source an airstream for engine cooling, so as to minimize the interruption of laminar flow?
 

flat6

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Jan 9, 2011
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monaco
Assume for a moment that I was designing a cigar shaped pusher, with the engine mounted somewhere in the rear of the cigar (really, it's just a cigar). Where might one source an airstream for engine cooling, so as to minimize the interruption of laminar flow?
use cooling fans to suck the boundary layer at the back of the cigar. the power lost might be made up by the reduction in drag. other than that its the obvious intake from a high pressure area near the fron of the cigae exiting to a low pressure area where the boundary layer is thickest at the rear of the cigar.
 

Dana

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NACA scoops might also be an option.

-Dana

A child of five could understand this! Fetch me a child of five.
 
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