how a plane The ordinary aircraft is maintained by the air pressure on its wings, which is explained by a theorem very strange statement by the Swiss mathematician Bernoulli. This theorem states that when a fluid flows around a fixed object, the pressure exerted on the object obliquely through the fluid increases as the speed of the current increases.
For example, throw up a jet of water through a hose, then place a ping gong at the top of the jet. The ball swings and spins but try to stay on top of the stream, seeming to defy logic. What actually happens when water flows around the ball? First it tends to slide to one side, say the left. The water splits around the ball, mostly on the right side and some on the left. The deviation causes the water to stop slowly, producing a lateral pressure. Simultaneously, the water pressure high-speed go up the right side of the Palota decreases, and so the ball spins towards the low side, away from the high pressure side and returning to the center of the jet. The shape of the airfoil (wing section) is designed to increase the pressure of air passing through the inside and then increase the top surface of the wing. This is done in two ways: balancing the wing slightly forward so that the incoming air hits the underside of the wing and decrease slowly (increasing pressure), and forcing air to pass through a long path on the surface rather than that the bottom surface of the wing. This characteristic shape of the wing is arched at the top and almost flat below, is lifted by the air passing and as the wing rises so does the aircraft fuselage. For the wing moves faster through the air, the propeller cuts through the air and throws it back. It finally hit the plane forward like a boy sitting in a carriage may advance to throw stones on the vehicle's rear section. This corresponds to the same law:? All movement has an equal and opposite reaction?, Which explains the launch of rockets, jet engines and satellites. By moving the plane forward along the track, finally developed a lot of air pressure in the wings (called lift or buoyancy) that will result in an aircraft in the air. The energy of the engine requires only enough to overcome the force of air sliding around? Lining? the plane. To give some idea of how efficient are the wings, take a model airplane, check engine and put them to work. The wings are the real takeoff, the propeller takes only forward. Few people realize that if the propeller makes every effort, the drive shaft is the one that really feels the push. The plane is pushed forward, either by the bow, one, two or four drive shafts. The planes are covered by small and mobile sections of the wing flaps calls placed on the back edges of the airfoil. By tilting the wing upward, the wing is forced down, and vice versa. Horizontal surfaces and vertical tail (rudder height and rudder) are similarly embedded in the moving sections. The pilot's controls consist of a joystick and two pedals rudder government. In its simplest form, the joystick is pivoted to its lower end, otherwise it is free to rotate in all directions. In modern aircraft the joystick can only swing back and forth. In its upper part has a steering wheel for turning. Pushing the joystick diagonally left or turning the wheel to the left simultaneously lifts the left wing aileron and lowers the right wing. This forces down the left wing and right wing up, placing the aircraft in a? Heel? to the left. By pressing the left pedal of government at the same time, there is a smooth turn to the left. Pushing the joystick forward down the wings of the empennage surface at the end of the plane. This raises the tail and force the plane into a tailspin. Pushing back the joystick gets off the tail and lifting the bow upward flight. Obviously a lot of coordination required to control a plane in such complex maneuvers such as landing, especially in adverse conditions. Some things make air travel less problematic. First, the plane's exhaust consists of hot gases that burn. These jets out through the exhaust and it looks as if the wing was burning, but it is not. Sometimes small fins that surround the engine are open during takeoff to allow air to cool the engine. The hot exhaust tube is disclosed, which is normal and means the engine will melt. Shortly before landing the pilot wheels with low audible noise. Noise is natural? Means the wheels are operating normally? and hence the sudden drop it feels when the wind hits the wheels and landing gear. This slow decrease is essential to facilitate safe landing of the aircraft. Aircraft manufacturers say adding more this landing flaps its wings, which act as extensions of the wing. Helicopters are rotary wing aircraft, and the principles are similar to those of regular plane but with the difference that their wings rotate in circles rather than forward. Thus the underside of the blade is lifted by moving the air passing and the rise is transmitted to the central shaft that holds the helicopter in the air. Helicopters have been experienced for a long time. The problem has always been to maintain the fuselage as opposed to rotating blades, after all, adding blades to the motor shaft and begins to operate the device in space, what is it that keeps the engine turning around axis of the blade, not the other? The answer lies in a small fan that hangs from a beam in the rear of the fuselage of the helicopter, which opposes the tendency to oscillate around the bar. Helicopters are less efficient than common aircraft for the simple reason that the energy used to raise the helicopter does not apply to move horizontally. The mileage covered by a fixed wing aircraft serves two purposes: to lift and travel. Therefore, a helicopter is noise, complexity and inefficiency in exchange for the advantage of being able to hover and land on a skyscraper roof. The army has been the largest buyer of such a device, but so are using the services of transportation on short haul boats. In a short helicopter will replace cars in garages. Aircraft of this type and are developing other ways, but for now the price and purchase expenses not allowed. Source: http://www.com-funcionan.com/
There are two theories about the creation of lift, the Bernoulli and Newton. While neither is considered perfect, help to understand a phenomenon to explain otherwise require a complex mathematical proof. Bernoulli Theory Swiss scientific theory Daniel Bernoulli (1700-1782), is an essential aid to understanding the mechanics of fluid motion. To explain the creation of lift force or lift, Bernoulli relates the increase in the rate of fluid flow with decreased pressure and vice versa. It is clear from this approach, when the particles belonging to the mass airflow hit the edge of an airfoil in motion, whose top surface is curved and flat bottom (such as the wing of an plane), they are separated. From the moment the mass of air hits the leading edge of the airfoil surface, particles move over the airfoil, while others do less to supposedly meet again on the opposite edge or output . Theory for particles of air move through the upper curve is reunited with those that move in a straight line below should go a long way due to the curvature, so will have to develop a higher rate to achieve reunited. This speed difference causes over the airfoil to originate an area of low pressure, while below appears, simultaneously, an area of high pressure. As a result, these differences in pressures above and below the airfoil surfaces cause low pressure to suck it up, creating a lifting force or lift. In the case of the plane, the force acting mainly in the wings, does that once defeated the opposition that gravity exerts on it, keeps it in the air.
Graphical representation of the Bernoulli theory. The flux of the air mass when it hits the edge of the wing of a plane, splits and takes two paths: (A) a long way, over the curved surface of the airfoil and a path Short (B) below. At the top creates a low pressure area which sucks up winning in the wing just in case, the resistance of gravity.
Bernoulli's theorem is the most commonly accepted explanation of how to create the lift for the aircraft remains in the air. But that theory is not completely true, because if it were no aircraft could fly head as do the military fighters and aerobatic aircraft as flying upside to not create the lift needed to keep air to vary the shape of the wings. In fact, the wings of these aircraft types are symmetrical on both sides.
Cross sections of three different types of wings: (A) standard wing. (B) typical profile of an airplane wing aerobatics. (C) wing of a fighter. Note that neither the wing "B" or "C" are flat below.
Either way Bernoulli's theory is not entirely misguided, because in reality during the flight of an aircraft air always moves faster on top than the bottom of the wing, regardless of the shape of its cross section . As part of the theorem postulates, this speed difference causes a low pressure above the wing that pulls up and, therefore, creates lift. However, contrary to this theory, particles that travel above an airfoil are never reunited with the traveling underneath.
The lift that keeps the plane in the air can be created only in the presence of a fluid, ie the mass of air that exists within the Earth's atmosphere. Neither the lift or the resistance in a vacuum. That is why the spaceships do not need wings to move in outer space where no air, except for the ferries that do need to maneuver from the time re-entering Earth's atmosphere and then land power. Theories of Bernoulli and Newton
There are two theories about the creation of lift, the Bernoulli and Newton. While neither is considered perfect, help to understand a phenomenon to explain otherwise require a complex mathematical proof. Bernoulli Theory Swiss scientific theory Daniel Bernoulli (1700-1782), is an essential aid to understanding the mechanics of fluid motion. To explain the creation of lift force or lift, Bernoulli relates the increase in the rate of fluid flow with decreased pressure and vice versa. It is clear from this approach, when the particles belonging to the mass airflow hit the edge of an airfoil in motion, whose top surface is curved and flat bottom (such as the wing of an plane), they are separated. From the moment the mass of air hits the leading edge of the airfoil surface, particles move over the airfoil, while others do less to supposedly meet again on the opposite edge or output . Theory for particles of air move through the upper curve is reunited with those that move in a straight line below should go a long way due to the curvature, so will have to develop a higher rate to achieve reunited. This speed difference causes over the airfoil to originate an area of low pressure, while below appears, simultaneously, an area of high pressure. As a result, these differences in pressures above and below the airfoil surfaces cause low pressure to suck it up, creating a lifting force or lift. In the case of the plane, the force acting mainly in the wings, does that once defeated the opposition that gravity exerts on it, keeps it in the air.
Graphical representation of the Bernoulli theory. The flux of the air mass when it hits the edge of the wing of a plane, splits and takes two paths: (A) a long way, over the curved surface of the airfoil and a path Short (B) below. At the top creates a low pressure area which sucks up winning in the wing just in case, the resistance of gravity.
Bernoulli's theorem is the most commonly accepted explanation of how to create the lift for the aircraft remains in the air. But that theory is not completely true, because if it were no aircraft could fly head as do the military fighters and aerobatic aircraft as flying upside to not create the lift needed to keep air to vary the shape of the wings. In fact, the wings of these aircraft types are symmetrical on both sides.
Cross sections of three different types of wings: (A) standard wing. (B) typical profile of an airplane wing aerobatics. (C) wing of a fighter. Note that neither the wing "B" or "C" are flat below.
Either way Bernoulli's theory is not entirely misguided, because in reality during the flight of an aircraft air always moves faster on top than the bottom of the wing, regardless of the shape of its cross section . As part of the theorem postulates, this speed difference causes a low pressure above the wing that pulls up and, therefore, creates lift. However, contrary to this theory, particles that travel above an airfoil are never reunited with the traveling underneath.
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