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Old 06-08-2012, 07:08 PM   #7 (permalink)
aerohead
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teardrop

Quote:
Originally Posted by Christ View Post
If a tear drop is such a great aerodynamic shape:

Why does the rain drop have a terminal velocity of only 25f/s, compared to the outstretched human, with a tV of ~250f/s?!

Checkmate, aerodynamicists!
*Teardrop is not rain drop.
*rain drops alter their form continuously as they fall,as they are a deformable structure,yielding instantaneously to any stressor.
*A raindrops terminal velocity is meaningless unless its mass and time-averaged mean frontal area was specified as well as Reynolds number Same for human.
*The 'teardrop' is used in reference to streamline bodies of revolution of blunt nose and tapering tail.
*Streamline bodies are given the term due to the fact that they are 'streamlined',having no separated flow,and no appreciable turbulent wake.They are the lowest drag form for any structure tested.
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