Lab: Lift and Drag on an Airfoil Date Experiment Performed: 03/29/2012 Date Report Submitted: 04/12/2012 Names of Group Members: Grader ’s Comments: Michael Stevens Grade: Abstract: The Aerodynamics Lab: Lift and Drag on an Airfoil experiment examined the lift and drag on a NACA 0012 airfoil inside a wind tunnel. The objective of the experiment was to obtain information relating to the lift and drag of the airfoil‚ such as lift forces‚ lift coefficients‚ drag forces including
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ABSTRACT One of the most widely used methodologies in characterising the quality of a wind tunnel is to study the flow over a sphere.The flow around the bluff body was characterised using smoke test‚ and the region of flow separation was analysed. The drag characteristics of 3 spheres of different diameters were studied for a wide range of Reynolds number. The Reynolds number at which the transition occurs is strongly dependent on the degree of turbulence in the wind tunnel. Based on the following tests
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Today we know that aerodynamics plays a major role in many sports‚ such 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
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The Airfoil & Theories of Lift Airfoil Definition: Have you noticed the curved shape of a bird ’s wing? An airplane ’s wing is curved also. A wing is designed for flight. It has a special shape called an airfoil. The airfoil shape provides a lifting force when air flows around it. Airfoil shapes can be found on wings‚ fans and propellers. Importance: An airplane’s airfoil plays a very important role in lifting the aircraft. The airfoil is designed to increase the velocity of the
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Hezeng Wang Social Problems Discussion 1 Oct 3rd 2013 Drug Abuse In nowadays‚ drugs become more and more familiar to people. In fact‚ drugs actually are good to human beings. They can be used to help and lessen pain. However‚ drugs abuse has become an important social problem. According to the textbook‚ there are so many drugs in the United States‚ such as marijuana‚ cocaine‚ nicotine‚ heroin‚ alcohol‚ and so forth. According to a survey‚ more than 12.8 million Americans‚ about six
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called air resistance (drag)‚ which slows them down. Objects fall faster until they reach their terminal speed‚ which is reached when the upward (air resistance) and downward (weight) forces are equal. Falling objects When an object is dropped it gets faster and faster as it falls. This happens because their weight (the force of gravity) pulls them down towards the centre of the Earth. As they fall through the air‚ they also experience an upward force called air resistance (drag). RAF parachutist
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Air Resistance Lab G Luhman‚ Mary …. Abstract: The acceleration of objects dropped from about 2 meters was found in order to derive the Reynolds Number. The effect of changing weight‚ shape‚ and radius of the objects (balloons) were tested independently such that it would be clear under what criteria either laminar or turbulent air flow is prevalent. • Introduction The difference between two models‚ laminar and turbulent‚ of air resistance may seem trivial the difference is can be seen
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The drag‚ FD‚ on a sphere located in a pipe through which a fluid is flowing is to be determined experimentally. Assume that the drag is a function of the sphere diameter‚ d; the pipe diameter‚ D; the fluid velocity‚ v; and the fluid density‚ ρ. (a) What dimensionless parameters would you use for this problem? (b) Some experiments using water indicate that for d = 0.005 m‚ D = 0.0125 m‚ and v = 0.6 m/s‚ the drag is 6.5×10-3 N. If possible‚ estimate the drag on a sphere located in a 0.6 m diameter
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will travel. This is accomplished by the quarterback throwing the football over handed or a sidearm motion to giving it the spin required. The spin causes the ball’s angular momentum points in the direction of its long axis. At same time due to air drag‚ torque is pointing perpendicular to the angular momentum. The ball travels on a semi-parabolic curve and wind torque produces a small change in the ball’s angular momentum. This allows the ball to continue to turn around its trajectory. Therefore
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Homework Introduction to Aerodynamics Name: Natalie Hume 1. In your opinion what has been the most important development/invention in the history of aerodynamics and why? I feel that I could pick something very complex and technical for this question. But I think in terms of science and simplicity I pick Bernoulli’s principle. This principle laid the foundation for the development of aerodynamics. It allowed for people to understand the relationship between pressure and velocity and continue
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