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Lecture8_3

# Lecture8_3 - AME 331 Introduction to Fluid Mechanics...

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11/2/2010 1 AME 331 Introduction to Fluid Mechanics Chapter 8: Internal Incompressible Viscous Flow Prof. Jesse Little University of Arizona 11/3/10 1 Lecture Preview and Assignments Today 8.3 No homework this week Exam 2: Chapters 5, 6, 7 Three problems similar to exam 1 Fri 11/5 Turbulence video posted 2

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11/2/2010 2 Example 8-2 3 8.20: Sealed journal bearing is formed from concentric cylinders. The inner and outer radii are 25 mm and 26 mm. The journal length is 100 mm and it turns at 2800 rpm. Gap is filled with oil. Velocity profile is linear across the gap. Torque needed to turn the journal is 0.2 N*m. Calculate the viscosity of the oil. Will the torque increase or decrease over time? Is the flow laminar? Parallel Plates (8-2) We have examined flows driven by pressure as well as from the movement of one plate We could also have gravity driven flows (i.e. body force) Example 8.3 goes through the derivation 4
11/2/2010 3 FD Laminar Pipe Flow (8-3)

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Lecture8_3 - AME 331 Introduction to Fluid Mechanics...

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