Question

A strong wind blows over the house shown in the figure. The wind is much stronger over the house's roof than lower down, and the house has an open chimney. A window on the ground floor is open, and so are the doors inside the house. Which way will air flow through the house?

Answer 1

Concepts and reason

The concepts needed to solve this problem are Bernoulli’s theorem and condition for flow of a fluid.

Initially, write the Bernoulli’s theorem and explain how the low pressure region forms due to parallel flow of fluid. After that write the condition for the flow of a fluid and explain about how the air flows through the house.

Fundamentals

The Bernoulli’s theorem states that the low pressure region forms near by a surface when a parallel air flow past over the surface.

Fluid is substance which flow from one place to other place. The fluids flow from high pressure region to the low pressure region. Fluids never flow from low pressure region to the high pressure region.

The Bernoulli’s theorem states that the low pressure region forms near by a surface when a parallel air flow past over the surface.

Hence, the pressure of the air over the chimney lowers due to the parallel flow of the strong wind. Consider the opening of the chimney is vertical.

Fluid is substance which flow from one place to other place. The fluids flow from high pressure region to the low pressure region.

Due to the horizontal flow of the strong wind, the windows and doors allow the wind into the house. As the pressure at the opening of the chimney is lower than the enter air, whatever the air entered into the house out flows through the chimney.

Ans:

The wind enters through the windows and doors and leaves through the chimney.