What are the factors affecting lift and drag?

Lift and drag also vary directly with the density of the air. Density is affected by several factors: pressure, temperature, and humidity. At an altitude of 18,000 feet, the density of the air has one-half the density of air at sea level.

What is the principle of physics by which a wing gets its lift?

Newton’s third law of motion states that, for every action, there is an equal and opposite reaction. Based on this law, wings are forced upwards because they are tilted, pushing air downwards so the wings get pushed upwards.

Which theory of lift makes more sense to you Bernoulli’s or Newton’s explain?

Bernoulli’s theory tends to be harder to understand and is favored by mathematicians and engineers. Newton’s is palatable to pilots because it’s more intuitive. Regardless of which philosophy you prefer, the important conclusion is that you realize there’s more than one correct way to explain lift.

Does Bernoulli’s principle provide a complete explanation for wing lift or is there some other significant factor?

Bernoulli’s principle is one factor that helps explain flight. The way objects are shaped is special to guide air at specific speeds in a specific place. If the air moves faster below the object, fluid pressure pushes it downward, pushing the object up.

How a wing generates lift?

An airfoil generates lift by exerting a downward force on the air as it flows past. According to Newton’s third law, the air must exert an equal and opposite (upward) force on the airfoil, which is lift. The airflow changes direction as it passes the airfoil and follows a path that is curved downward.

How does Bernoulli’s principle affect the design of airplane wings?

Bernoulli’s principle helps explain that an aircraft can achieve lift because of the shape of its wings. They are shaped so that that air flows faster over the top of the wing and slower underneath. The high air pressure underneath the wings will therefore push the aircraft up through the lower air pressure.

What factors affect lift?

What Factors Affect Lift? The size and shape of the wing, the angle at which it meets the oncoming air, the speed at which it moves through the air, even the density of the air, all affect the amount of lift a wing creates.

Why does Bernoulli’s principle work?

In fluid dynamics, Bernoulli’s principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or a decrease in the fluid’s potential energy. When the air speeds up, the pressure also decreases. Past the constriction, the airflow slows and the pressure increases.

How does Bernoulli’s Principle relate to Newton’s laws?

Bernoulli’s equation, which was named for Daniel Bernoulli, relates the pressure in a gas to the local velocity; so as the velocity changes around the object, the pressure changes as well. From Newton’s third law of motion, a turning action of the flow will result in a re-action (aerodynamic force) on the object.

How does Bernoulli’s principle apply to the flight of airplanes quizlet?

It states that the faster a fluid moves, the less pressure the fluid exerts. Bernoulli’s principle states that as the speed of a moving fluid increases, the pressure exerted by the fluid decreases. This principle explains why planes fly and disks fly. The shape can press air up or down at specific speeds.

How can Bernoulli’s principle be used in explaining the reasons behind air going up the chimney of a house?

Question: How does Bernoulli’s principle help explain air going up the chimney of a house? A. The air above the chimney attracts the ashes. Air blowing across the top of the chimney reduces the pressure above the chimney.

How does Bernoulli’s principle apply to aeroplanes?

Air is a fluid and because of this Bernoulli’s principle applies to flight. The shape of an aeroplane wing, flatter on the underside than the top, means that the air passing over the wing has to accelerate over the wing. This means that it is at a lower pressure than the air under the wing, creating lift.

Should the Bernoulli equation be used to model the lift process?

Those who argue against modeling the lift process with the Bernoulli equation point to the fact that the flow is not incompressible, and therefore the density changes in the air should be taken into account. This is true — the ideal gas lawshould be obeyed and density changes will inevitably result.

What is Bernoulli’s law of pressure differential?

This is termed a differential pressure, meaning the pressures are different at different parts of the same system. Bernoulli’s principle is also known as Bernoulli’s law of Pressure Differential because of this. The explanation of the phenomenon is that energy cannot be lost or gained, only changed in form.

Why is pressure lower at the trailing edge of a wing?

In order to meet up at the trailing edge, the molecules going over the top of the wing must travel faster than the molecules moving under the wing. Because the upper flow is faster, then, from Bernoulli’s equation, the pressure is lower.