1. An automobile radio aerial consists of three sections having diameters in., in., and in. Find the frequency of the vortex shedding when the car is traveling at 35 mph and 65 mph. 2. For problems 9.36 and 9.37 find the vortex shedding frequency. Estimate the wavelength between successive vortices. problem 9.36: Air flows over a 60 f t high circular smoke stack at a uniform speed of 30 mph. Find the total force acting on the stack if its diameter is 6 f t and the air temperature is 70°F. problem 9.37: A 0.5 in. diameter cable is strung between poles 120 f t apart. A 60 mph wind is blowing at right angles to the cable. Find the force acting on the cable due to the wind. The air temperature is 40°F.

1. An automobile radio aerial consists of three sections having diameters in., in., and in. Find the frequency of the vortex shedding when the car is traveling at 35 mph and 65 mph. 2. For problems 9.36 and 9.37 find the vortex shedding frequency. Estimate the wavelength between successive vortices. problem 9.36: Air flows over a 60 f t high circular smoke stack at a uniform speed of 30 mph. Find the total force acting on the stack if its diameter is 6 f t and the air temperature is 70°F. problem 9.37: A 0.5 in. diameter cable is strung between poles 120 f t apart. A 60 mph wind is blowing at right angles to the cable. Find the force acting on the cable due to the wind. The air temperature is 40°F.

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.

Chapter6: Forced Convection Over Exterior Surfaces

Section: Chapter Questions

Problem 6.34P

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