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Engineering

Mechanical Engineering

0.6 smooth ball 0.4 0.2 normal baseball rough ball 50 100 150 200 V (miles per hour) Drag Coefficient

Principles of Heat Transfer (Activate Learning with these NEW titles from Engineering!)

8th Edition

ISBN:9781305387102

Author:Kreith, Frank; Manglik, Raj M.

Publisher:Kreith, Frank; Manglik, Raj M.

Chapter5: Analysis Of Convection Heat Transfer

Section: Chapter Questions

Problem 5.24P: Engine oil at 100C flows over and parallel to a flat surface at a velocity of 3 m/s. Calculate the...

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Question

Baseball drag data from the University of Texas are shown
in Fig. A baseball weighs approximately 5.12
ounces and has a diameter of 2.91 in. Hall-of-Famer Nolan
Ryan, in a 1974 game, threw the fastest pitch ever recorded:
108.1 mi/h. If it is 60 ft from Nolan’s hand to the catcher’s
mitt, estimate the sea-level ball velocity which the catcher
experiences for (a) a normal baseball, and (b) a perfectly
smooth baseball.

0.6
smooth ball
0.4
0.2
normal
baseball
rough ball
50
100
150
200
V (miles per hour)
Drag Coefficient

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