Question

The average drag coefficient of a passenger car increases when the windows are open during driving. Suppose that you are driving your car on a highway at a speed of 120 km/h. Assuming a drag coefficient of 0.3 for the car at the prescribed speed, determine the additional power consumption when the windows are open (CD = 0.45 for open windows). Take the car's frontal area as 2.16 m2 and air density as ρ =1.2 kg/m3.

Name: the average drag coefficient of a passenger car increases when the windows are open during driving suppose that you are driving your car on a highway at a speed of 120 kmh assuming a drag coefficient
Uploaded: 2023-06-19T16:32:21-08:00
Duration: 3 min 19 s
Channel: James Kiss
Description: the average drag coefficient of a passenger car increases when the windows are open during driving suppose that you are driving your car on a highway at a speed of 120 kmh assuming a drag coefficient

          The average drag coefficient of a passenger car increases when the windows are open during driving. Suppose that you are driving your car on a highway at a speed of 120 km/h. Assuming a drag coefficient of 0.3 for the car at the prescribed speed, determine the additional power consumption when the windows are open (CD = 0.45 for open windows). Take the car's frontal area as 2.16 m2 and air density as ρ =1.2 kg/m3.

Added by Aytekin E.

Fundamentals of Fluid Mechanics

Philip M. Gerhart, Andrew L. Gerhart,… 8th Edition

Chapter 9

Instant Answer

Solved by Expert James Kiss

06/19/2023

Step 1

First, we need to find the drag force acting on the car when the windows are closed and when they are open. The drag force can be calculated using the formula: Drag Force (FD) = 0.5 * CD * ρ * A * V^2 where CD is the drag coefficient, ρ is the air density, Show more…

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The average drag coefficient of a passenger car increases when the windows are open during driving. Suppose that you are driving your car on a highway at a speed of 120 km/h. Assuming a drag coefficient of 0.3 for the car at the prescribed speed, determine the additional power consumption when the windows are open (CD = 0.45 for open windows). Take the car's frontal area as 2.16 m2 and air density as ρ =1.2 kg/m3.