Lecture 5 - Announcements Begin viscometer experiment this...

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Announcements Begin viscometer experiment this week Prepare program before going to lab Today begin technical writing Final check-off for exercises 2-5 on Friday, Feb. 26 Take advantage of labs on Thursday and Monday evening
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Key Concepts Fluid: a substance that deforms continuously under the influence of shear (tangential) forces. • Inviscid flow • Stokes flow • Viscous drag vs form drag • Laminar vs turbulent flow • Boundary layer • Flow separation • Flow transition within the boundary layer
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Laminar and Turbulent Boundary Layers on Airfoil Boundary Layer Thickness Laminar Turbulent
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Infrared emitter/detector pairs Emitter: LED (light emitting diode) wavelength near 1000 nm (1.06 μ m) square wave output with VCO controlled frequency ( ca. 900 Hz) Detector: infrared phototransistor frequency selected band pass (tone decoder) “phase sensitive” or “frequency selected” detection very effective in S/N reduction output is 5 V when the light is blocked; remains at 0 V in the presence of sufficient frequency-selected light
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Rapid Communication A Highlight of the International Conference on Fluid Dynamics: Dr. Martin Schottenheimer of General Dynamics Inc. pointed out that
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This note was uploaded on 09/27/2010 for the course A&EP 264 at Cornell.

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Lecture 5 - Announcements Begin viscometer experiment this...

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