determined experimentally. If the frontal area of the car is 2 m?, and the force acting on the car by the ideal gas (air) is equals to 200 N, determine the drag coefficient of the car. (assume R=0.287 kPa.m³/kg.K)

determined experimentally. If the frontal area of the car is 2 m?, and the force acting on the car by the ideal gas (air) is equals to 200 N, determine the drag coefficient of the car. (assume R=0.287 kPa.m³/kg.K)

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 5.26P

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Concept explainers

Fluid Dynamics

The study of the flow of gases and liquids, usually in and around solid surfaces, is known as fluid dynamics in physics and engineering. Fluid dynamics, for example, can be used to evaluate the movement of air through an airplane wing or the surface of a vehicle. It can also be used in ship design to increase the speed at which ships pass through water.

Question

Example 1
A drag coefficient of a car at pressure of 0.1 MPa,
temperature of 80 °C, and speed of 50 km/h is to be
determined experimentally. If the frontal area of the car is
2 m?, and the force acting on the car by the ideal gas (air)
is equals to 200 N, determine the drag coefficient of the
car. (assume R=0.287 kPa.m³/kg.K)

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