383_Dynamics 11ed Manual

# 383_Dynamics 11ed Manual - subjected to a jet of water of...

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Engineering Mechanics - Dynamics Chapter 15 Problem 15-115 The fan draws air through a vent with speed v . If the cross-sectional area of the vent is A , determine the horizontal thrust on the blade. The specific weight of the air is γ a . Given: v 12 ft s = A 2f t 2 γ a 0.076 lb ft 3 = g 32.20 ft s 2 = Solution: m' t m d d = γ a vA = m' 0.05669 slug s = T m' v 0 () g = T 0.68 lb = * Problem 15-116 The buckets on the Pelton wheel are
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Unformatted text preview: subjected to a jet of water of diameter d , which has velocity v w . If each bucket is traveling at speed v b when the water strikes it, determine the power developed by the wheel. The density of water is w . Given: d 2 in = 20 deg = v w 150 ft s = g 32.2 ft s 2 = v b 95 ft s = w 62.4 lbf ft 3 = 381...
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