361-Lab 1.docx - Experiment 1 Laminar Flow Table MECH 361 Lab Section FR Written By Jonathan Ramsay Massicotte ID 1937820 Vanessa Cheng ID 1288547

361-Lab 1.docx - Experiment 1 Laminar Flow Table MECH 361...

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Experiment 1: Laminar Flow Table MECH 361 Lab Section FR Written By: Jonathan Ramsay Massicotte, ID 1937820 Vanessa Cheng, ID 1288547 Daniel Chirico, ID 1960032 Derek Boychuk, ID 1965212 Experiment Performed on September 24, 2012 Submitted on October 9, 2012
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Objective: The objective of this experiment was to study two-dimensional problems involved with laminar flow. This study was conducted by using potential flow patterns with injected dye which were to be recorded. Introduction: Studying the behaviour of fluids is essential since there are many mechanical devices that must take into account these principles to function, such as airplanes and cars. When in motion, fluids always follow a single path; this is known as a streamline where the velocity of the fluid is tangential to this stream. During flow, these streamlines do not cross each other since there cannot be two different tangential velocities at the same point. In this experiment, the study of flow under different conditions will be examined. In all cases, the flow will be considered laminar, meaning it has a Reynolds number below 2300 [1]. For a turbulent flow, the Reynolds number is supposed to be higher than 4000 while range between these values is known as the transient section. Reynolds number is a ratio of the inertial forces to the viscous ones in a system and is represented by the equation below [1]. ℜ= ρvD μ In this equation, ρ is the density of the fluid, v is its velocity, D is the diameter of the pipe or the length the fluid travels and μ is the viscosity. In the first portion of the experiment, the ideal flow around a cylinder was to be observed [1]. With a cylinder there is a stagnant point, which is a point of no velocity on the body. This occurs because the fluid separates to overcome the obstacle. In contrast, when an ideal flow is passed over aerofoil it can
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