Hydrodynamically and aerodynamically optimized leading and trailing edge configurations
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United States of America Patent
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Mar 28, 2006
Grant Date -
Jan 15, 2004
app pub date -
Oct 11, 2002
filing date -
Jul 12, 2002
priority date (Note) -
Expired
status (Latency Note)
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Abstract
A novel concept for a hydrodynamically and aerodynamically improved leading edge and trailing edge structure is primarily suited for high-speed motion, such as near Mach 1 and above, but also for slow-speed motion and for stationary operation, where stationary structures are subjected to fluid flow. The configuration incorporates the model of the natural wave behavior. The leading edge of the aircraft, of the train, of the submarine, or the like, has a sharp tip which merges smoothly into a cylindrical or rectangular body. The merging segment from the tip to the cylinder may be defined with a tangent function. The rounding of the surfaces promote proper fluid sheet formation along the surface and to reduce undesirable vortice formation and thus to reduce the value of several drag factors.
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