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Lecture4_4 - AME 331 Introduction to Fluid Mechanics...

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9/19/2010 1 AME 331 Introduction to Fluid Mechanics Chapter 4: Basic Equations in Integral Form Prof. Jesse Little University of Arizona 9/20/10 1 Lecture Preview and Assignments Chapter 4.4-4.5 today Homework 5 due Friday Read 4.7 for next time Box around equation emphasizes importance Continue with conservation of momentum So far we have only examined stationary CV 2
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9/19/2010 2 Conservation of Momentum (4-4) Note we are skipping Bernoulli for now. Plenty of practice with this later. What if CV is moving with constant velocity? Our derivation of the RTT still works (both stationary and constant velocity are inertial reference frames) Now must emphasize that our velocities must be measured w.r.t. the CV. We do this with the xyz subscript consistent with book notation. This is still the same equation, we are just emphasizing that velocity must be measured relative to the CV 3 Lecture Example 4-3 4
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9/19/2010 3 Conservation of Momentum with Acceleration (4-5) What if the CV is accelerating (rocket)?
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