ME 471 - Quiz Solutions

# ME 471 - Quiz Solutions - ME 471.3 Introduction to...

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ME 471.3 Introduction to Aerodynamics Department of Mechanical Engineering Winter 2014 Instructor Rajat Chakravarty Quiz 1 Instructions: Write all solutions on this page itself. No additional paper will be provided. 1. On being chased by a bear in a forest, a man encounters a cliff, and jumps off it to save himself. He covered a distance of in . What is the colour of the bear? ( ) ( ) ( ) This only happens at the poles. Hence, the bear must be a polar bear Colour of bear: WHITE 2. Correctly label the following vectors on the diagram: Lift force, drag force, normal force, axial force and angle of attack. Refer Figure 1.17 from the textbook. 3. For an angle of attack of , calculate the lift and drag coefficients and of an aerofoil having normal and axial force coefficients as and . Refer Equation 1.18 and 1.19 from the textbook .

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ME 471.3 Introduction to Aerodynamics Department of Mechanical Engineering Winter 2014 Instructor Rajat Chakravarty Quiz 2 Instructions: Write all solutions on this page itself. No additional paper will be provided.
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