Problem 12CQ

Roofs are sometimes pushed off vertically during a tropical cyclone, and buildings sometimes explode outward when hit by a tornado. Use Bernoulli’s principle to explain these phenomena.

Step 1 of 4

Bernoulli’s principle states that for a steady flow, the total mechanical energy of a fluid remains constant. The mechanical energy consists of the fluid’s pressure energy, potential energy per unit volume and kinetic energy per unit volume. Therefore, the expression for Bernoulli’s principle is,

constant

Here, pressure of the fluid,

density of the fluid

fluid’s velocity

acceleration due to gravity

height at the point where the pressure is measured.