A spherical raindrop that is D= 1/8 inch in diameter falls through the air at sea-level. a) If the raindrop reaches its terminal (constant) velocity when the drag force = weight, develop an equation for the terminal velocity VT = f(p H20, Pair, D, g, CD) b) Estimate the drag coefficient on the raindrop using Table 7.3, White 8th edition and assuming laminar flow. Estimate the terminal velocity of the raindrop VT c) m/s

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Chapter5: Analysis Of Convection Heat Transfer
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Problem 5.26P
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Fluid Mechanics Problem

 

Note: Fluids are assumed to be at 20oC.

A spherical raindrop that is D= 1/8 inch in diameter falls through the air at sea-level.
a) If the raindrop reaches its terminal (constant) velocity when the drag force = weight, develop
an equation for the terminal velocity VT = f(p H20, Pair, D, g, CD)
b) Estimate the drag coefficient on the raindrop using Table 7.3, White 8th edition and assuming
laminar flow.
Estimate the terminal velocity of the raindrop
VT
c)
m/s
Transcribed Image Text:A spherical raindrop that is D= 1/8 inch in diameter falls through the air at sea-level. a) If the raindrop reaches its terminal (constant) velocity when the drag force = weight, develop an equation for the terminal velocity VT = f(p H20, Pair, D, g, CD) b) Estimate the drag coefficient on the raindrop using Table 7.3, White 8th edition and assuming laminar flow. Estimate the terminal velocity of the raindrop VT c) m/s
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