Consider again a semi truck traveling at 55 mph on the freeway. The ambient air is at 1 atm and 80°F. The trailer of the truck can be considered as a 8-ft-wide, 10-ft-high, 48-ft-long rectangular box. a. Assuming flat plate boundary layer behavior and no flow separation, estimate the drag force acting on the top and side surfaces and the power [hp] required to overcome this drag. b. Does the analysis seem reasonable for the actual drag force for the truck? Explain.

Consider again a semi truck traveling at 55 mph on the freeway. The ambient air is at 1 atm and 80°F. The trailer of the truck can be considered as a 8-ft-wide, 10-ft-high, 48-ft-long rectangular box. a. Assuming flat plate boundary layer behavior and no flow separation, estimate the drag force acting on the top and side surfaces and the power [hp] required to overcome this drag. b. Does the analysis seem reasonable for the actual drag force for the truck? Explain.

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 5.30P: Air at 1000C flows at an inlet velocity of 2 m/s between two parallel flat plates spaced 1 cm apart....

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