Chapter 13.3, Problem 38SSC

To determine

The manner in which Bernoulli’s principle explains the phenomenon of tornados making the house explode from the inside. Ways in which the danger of a door or window exploding outward could be reduced.

Explanation of Solution

Introduction: Bernoulli’s theorem states that the sum (or total) of static pressure plus the dynamic pressure of a liquid will be always constant. Here, the net energy/unit volume of a liquid remains constant at every cross-sectional area throughout the liquid flow.

According to Bernoulli’s theorem, the high velocity of the wing during a tornado causes a lower pressure.

Since the air is stagnant inside the house, it remains at atmospheric pressure, such difference between inside or outside causes it to explode. In order to prevent this condition, several scientists suggested that opening windows, as well as doors, would equalize the pressure inside a house. This may decrease the risk of house-exploding. In short, to reduce the danger of exploding, there should be proper ventilation.

Conclusion: High pressure inside the house and low pressure of the tornado results in the explosion of the house inside out. This condition can be prevented by opening the doors plus windows of the house.