0
What happens to an airfoil that is curved on its bottom surface but flat on its top surface when it is forced through the air?
The air that goes around the bottom has farther to go than the air round the top, if after passing the air is to return ito its equilibrium. So the air over the bottom is "stretched" (more volume for the same amount). So its pressure is lower than the air on top. So, turning it upside down, the extra pressure below can be used to lift aeroplanes. That's a rather crude description, admittedly, of what is happening.
What else can I help you with?
What is the surface area of a cylinder without a top or bottom?
2(pi)rh
What is the difference between total surface area and lateral surface area?
total surface area is all of the area. ex. for a square pyramid it would be the area of the square on the bottom and the four triangle sides lateral surface area is all the surface area EXCEPT the base. ex. for a square pyramid it would be the area of the four sides of the pyramid. the bottom square is NOT included. for a triangular prism it would be the area of the three rectangle sides, NOT the two triangular sides
Does a cylinder have a curved and flat surface?
Yes, a cylinder has both curved and flat surface. Considering a solid cylinder standing on its end, the circular base and the circular top are flat surfaces. The surface connecting the top and bottom is curved.
Is the base of a retangular pyramid also a face?
The bottom, or base of a pyramid would count as a face is you were finding out surface area.
Why is a cone not a prism?
A cone has a curved surface and only has one base (the bottom). A prism however, has two bases (the top and bottom) and has only polygonal faces. A cone also has an apex which a prism doesn't.
What is Force of lift?
The force of lift is what makes airplanes fly. It results from an effect called the Bernoulli Effect when air passes over and airfoil, a surface which is curved on the top and flat on the bottom. The air passing over the upper surface has farther to go and therefore goes faster than that passing over the lower surface. The faster-moving air causes the pressure above the airfoil to reduce, causing the wing to rise.
How is Bernoulli's principle related to airplanes?
Bernoulli showed (using water models) how flow over an airfoil (the top surface curved more than the bottom = shape of aircraft wing) lowered the pressure on the top surface, thus producing lift.
The curve on top of a wing of an airplane is?
Its called an airfoil. Its what gives the plane lift during flight. ------------------------------------------------------------------------------------------- An airfoil is the totality of the wing. There are various designs of airfoils. One such design was of a wedge shape, which is contrary to the accepted design of the curved upper surface. The basic airfoil includes the upper curved surface of the wing, the bottom flat or less curved surface of the wing, the cord thickness and total wing span. I had given a more thorough lay explanation of how lift is produced, but for some reason that explanation was removed. Go figure? My past background is as a flight instructor/mechanic/cropduster pilot.
What happens to a bubble released at the bottom of the ocean?
It becomes larger as it is rising toward the surface because there is pressure pushing on the bubble
What happens when you hit the coins of the bottom why is this so?
When you hit the coins at the bottom of a container, the force transmits through the coins in a chain reaction due to the principles of kinetic energy and momentum transfer. This causes the bottom coin to move and collide with the surface of the container, resulting in a sound being produced.
What is the purpose of drag in airfoils?
'Drag' is generally not something that the designer intentionally includes in his design, with a purpose. It's more a 'necessary evil' ... a property that just shows up, uninvited, as a result of the mass and viscosity of air, and of the friction of its interaction with the airfoil's surfaces. It's probably safe to say that if the airfoil designer could get rid of drag completely, he would, but the best he can do is to minimize it, using design techniques developed by all the airfoil designers who came before him, and then just learn to live with what's left.
What happens if humans consume products closer to the bottom of the food chain?
Then a smaller surface is needed to feed the same number of people.
Is the Chesapeake bay saltier on the surface or on the bottom?
The bottom
Why happens when you hit the bottom of a stack of coins and why is this so?
When you hit the bottom of a stack of coins, the impact transfers energy through the coins, causing them to jostle and move. This happens because the force of the impact is transmitted through the coins, which in turn push against each other due to their physical contact.
What is the bottom of an object called?
The bottom of an object is called the base.
Not the bottom of the ocean but the?
Surface?
What is the force of lift?
The force of lift is what makes airplanes fly. It results from an effect called the Bernoulli Effect when air passes over and airfoil, a surface which is curved on the top and flat on the bottom. The air passing over the upper surface has farther to go and therefore goes faster than that passing over the lower surface. The faster-moving air causes the pressure above the airfoil to reduce, causing the wing to rise.
