AA311.PopQuiz2.Solutions-2

AA311.PopQuiz2.Solutions-2 - AA311: Atmospheric Flight...

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Unformatted text preview: AA311: Atmospheric Flight Mechanics Pop Quiz 2 Dr. Laszlo Techy University of Washington Department of Aeronautics & Astronautics November 04, 2011 Dr. Laszlo Techy AA311: Atmospheric Flight Mechanics Pop-quiz 2 Closed book, closed notes. One empty sheet of paper. Write down your name, and student ID number. Dr. Laszlo Techy AA311: Atmospheric Flight Mechanics Pop-quiz 2: Question 1 (3 min) 1 What is the definition of Mach number, M ? 2 Using Mach number, define subsonic, sonic, supersonic, transonic, hypersonic flight regimes. 3 Why can we not use Bernoullis equation for high-speed subsonic flight? 4 Define critical Mach number and critical pressure coefficient? Dr. Laszlo Techy AA311: Atmospheric Flight Mechanics Pop-quiz 2: Question 1 (3 min) Solution 1 What is the definition of Mach number, M ? M = V / a , where V is the flow speed, and a is the speed of sound in the surrounding medium....
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AA311.PopQuiz2.Solutions-2 - AA311: Atmospheric Flight...

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