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, Cp) b) Estimate the drag coefficient on the raindrop using Table 7.3, White 8th edition and assuming laminar flow.

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8th Edition
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Author:Kreith, Frank; Manglik, Raj M.
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Chapter5: Analysis Of Convection Heat Transfer
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Problem 5.29P: Air at 20C flows at 1 m/s between two parallel flat plates spaced 5 cm apart. Estimate the distance...
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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, Cp)
b) Estimate the drag coefficient on the raindrop using Table 7.3, White 8th edition and assuming
laminar flow.
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, Cp) b) Estimate the drag coefficient on the raindrop using Table 7.3, White 8th edition and assuming laminar flow.
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