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Lecture9_2

Lecture9_2 - AME 331 Introduction to Fluid Mechanics...

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11/18/2010 1 AME 331 Introduction to Fluid Mechanics Chapter 9: External Incompressible Viscous Flow Prof. Jesse Little University of Arizona 11/19/10 1 Lecture Preview and Assignments Today 9.4-9.5 Read 9.5 HW 10 due by 2pm HW 11 posted later today, due Wed 12/1 No Class on Monday 2

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11/18/2010 2 Momentum Integral (9-4) Consider incompressible, steady, 2D flow over a solid surface We will use a differential CV in the BL and want to find δ (x) Note that the dashed line is δ (x) There is NO mass flux across ad. There is mass flux across ab and cd What about bc? 3 Momentum Integral (9-4) Apply continuity with assumption of steady, 2D flow to our differential CV Consider the mass flux across each face ab 4
11/18/2010 3 Momentum Integral (9-4) cd bc Come back to these later 5 Momentum Integral (9-4) Consider incompressible, steady, 2D flow over a solid surface with no body forces We will use a differential CV in the BL and want to find δ (x)

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Lecture9_2 - AME 331 Introduction to Fluid Mechanics...

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