said topic. | A ll the object here on the Earth above‚ needs a wing in order to lift itself and a power to push itself forward. If an object is light in weight it is easy to fly‚ like a kite‚ it is made up of paper and thin strips of wood‚ so it is light in weight‚ a bird; their body is lightweight so they can fly easily without any hassle. If an object is heavy or huge‚ it needs a great lift and power in order to lift them. I’m pretty much sure that most of the people here‚ ask themselves‚ ask their
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this allows for the air on the bottom to move slower‚ which creates more pressure on the bottom‚ and allows for the air on the top to move faster‚ which creates less pressure. This is what creates lift‚ which allows planes to fly. An airplane is also acted upon by a pull of gravity in which opposes the lift‚ drag and thrust. Thrust is the force that enables the airplane to move forward while drag is air resistance that opposes the thrust force. *A bird’s wing
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Propeller Design | AbstractHow does a helicopter generate enough lift to fly? How does a speedboat get moving fast enough to pull someone on water skis? Here ’s a project on designing propellers to do the job. ObjectiveThe goal of this project is to investigate how changes in chord length affect the efficiency of propellers.IntroductionA propeller‚ like an airplane wing‚ is an airfoil: a curved surface that can generate lift when air moves over it. When air moves over the surface of a moving propeller
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an object must have "lift." Lift is what pushes something up. Lift is made by wings. Wings have a curved shape on top and are flatter on the bottom. That shape makes air flow over the top faster than under the bottom. The faster air on top of the wing makes suction on the top of the wing and the wing moves up. Airplanes get lift from their wings. A helicopter’s rotor blades are spinning wings. A helicopter moves air over its rotor by spinning the blades. The rotor makes the lift that carries the helicopter
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3-Aerofoil Lab Report Introduction This report aims to investigate the effect the angle of attack of an aerofoil has on the air flow around it. This was done by recording the lift and drag forces the aerofoil experienced when positioned at different angles of attack. The experimental lift force the aerofoil experienced when positioned at different angles of attack was then compared with theoretical values. An attempt was made to explain any discrepancies between experimental and
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as tennis‚ soccer‚ hunting‚ and motor sports‚ we will investigate the effects of aerodynamics on baseball. The three main forces that act on a baseball in flight are the weight‚ drag‚ and lift. In an effort to understand how a baseball changes direction we will discuss an additional force called the lift coefficient or Magnus Force. This force is developed by the rotation or spinning of the baseball. We will discuss several different pitches and how the Magnus force acts on each of the pitches
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propulsion through the water‚ which resulted in me falling off of a lot of waves. There are two biomechanical principles that help explain propulsive forces produced by a surfer when paddling through the water‚ these include: * Drag force * Lift force Drag force: Definition: Drag force is due to pressure difference (Amezdroz‚ et al‚. 2010). Drag force is used to propel a surfer in water. “As the hand is pulled back in the water‚ the water then flows or travels past the hand and becomes
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propeller. Nowadays huge turbofans are attached to the wings or the tail of the aircraft instead. Of course propelled airplanes are still used‚ most modern planes have jet engines. I will be going over the physics of propellers‚ and how airplanes gain lift. Lastly‚ I will go over the details and aspects of jet turbofans used on commercial airlines. A propellers main function is to push the plane forward through the air. Hence it needs all the air that it can get. Since air becomes scarcer as we go
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Semester 2009 Contents Abstract Acknowledgements 1 Introduction 2 Review 2.1 Aerodynamics of flapping wings . 2.1.1 Wagner Effect . . . . . . . 2.1.2 Leading edge vortex . . . 2.1.3 Clap and fling mechanism 2.1.4 Rotational lift . . . . . . . 2.1.5 Wing-wake interactions . 2.1.6 Lift force . . . . . . . . . 2.2 Flapping wings in nature . . . . 2.2.1 Insects . . . . . . . . . . . 2.2.2 Hummingbirds . . . . . . 2.2.3 Bats . . . . . . . . . . . . 2.2.4 Birds . . . . . . . . . . . . 2.3 Summary . . . .
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Introduction First racing cars were primarily designed to achieve high top speeds and the main goal was to minimize the air drag. But at high speeds‚ cars developed lift forces‚ which affected their stability. In order to improve their stability and handling‚ engineers mounted inverted wings profiles1 generating negative lift. First such cars were Opel’s rocket powered RAK1 and RAK2 in 1928. However‚ in Formula‚ wings were not used for another 30 years. Racing in this era 1930’s to 1960’s occured
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