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Unformatted text preview: Bryan Jacobs MON 79PM Lab Partner: Cameron Rison Lab 7 Bernoullis Principle Bryan Jacobs MON 79PM Lab Partner: Cameron Rison Sample Calculations: Bryan Jacobs MON 79PM Lab Partner: Cameron Rison Sample Calculations (continued): Bryan Jacobs MON 79PM Lab Partner: Cameron Rison Introduction: The main objective of the laboratory 7 was to show how the Bernoullis principle acts and what conditions are necessary to fulfill his famous equation + + = + + Pa 12Va2 gy Pb 12Vb2 gy . The equation relates velocity, height and pressure just as the work energy equation. These are evaluated when the fluid is incompressible, nonviscous and non turbulent flow conditions are fulfilled. represents the density of the fluid, y the height relative to the other point just as potential energy, P is the pressure of the fluid that is in N/m^2, all units in the calculations to obtain an interpretable result. Another important assumption is that theres no friction of the fluid against the flow. This relationship between pressure and velocity is the reason why a plane obtains lift; that the pressure at the bottom of the wing is greater. In this experiment we used an old artifact with one glass tube with two different diameters along its length to increase the air speed and change the path of the air, a pitot tube, which allowed us to measure two different pressures at the same point; the stagnation pressure and the ambient pressure. The stagnation pressure is the pressure created by the airspeed plus the environment pressure, and the ambient pressure is the pressure...
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This note was uploaded on 06/05/2011 for the course PHYS 103M taught by Professor Antoniewitz during the Spring '11 term at University of Texas at Austin.
 Spring '11
 Antoniewitz
 Physics

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