Question

Name the 2 physical laws on which the equation of motion of a low speed airflow are based. If the effect of viscosity are neglected, what property of the flow field must be zero within all areas of the flow field?​

Answer 1

Given that:

The equation of motion of a motion of a low speed air flow are based.

As an air flow moves through the air, its wings cause changes in the speed and pressure of the air moving past them. These changes result in the upward force caused lift.

Bernoulli Principle:

Let’s start with the Bernoulli principle. The Bernoulli principle states that an increase in the speed of a fluid occurs simultaneously.

With a decrease in the pressure exerted by the fluid.

For a stream of air to speed up some of the energy from the random motion of the air molecules must be corrected