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Lecture4_1

# Lecture4_1 - AME 331 Introduction to Fluid Mechanics...

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9/12/2010 1 AME 331 Introduction to Fluid Mechanics Lecture 10 Chapter 4: Basic Equations in Integral Form Prof. Jesse Little University of Arizona 9/13/10 1 Lecture Preview and Assignments Chapter 4.1-4.2 today Homework 3 posted due Friday (9/17) Read 4.3 for next time Quick buoyancy problem first 2

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9/12/2010 2 Lecture Example 3-5 3 Basic Laws for a System (4-1) We now begin study of the motion of fluids (dynamics) We will approach this in 2 ways 1. Integral Form (Chapter 4) Simple, physically correct, but requires approximations Physical laws apply to matter (system) and not directly to regions of space (volume) so we need to convert them for our purposes 2. Differential Form (Chapter 5) Detailed, usually difficult to solve analytically Result is a PDE .more later You can get one from the other 4
9/12/2010 3 Basic Laws for a System (4-1) We will apply what we know from dynamics and thermo We wish to express these as rate equations for our purposes Conservation of Mass 5 Basic Laws for a System (4-1) Newton’s 2 nd Law 6

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