Experimental Fluid Mechanics |
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Page 102
... Drag Measurements The total drag on a body can be measured with a balance but information about the local surface friction at any given point on the body cannot in general be deduced from total drag measurements . One case in which it ...
... Drag Measurements The total drag on a body can be measured with a balance but information about the local surface friction at any given point on the body cannot in general be deduced from total drag measurements . One case in which it ...
Page 103
... drag on a body ( with the exception of any induced drag due to lift ) can be found by measuring the total momentum deficit in the wake . The drag per unit span of a two - dimensional body is D ' = [ __ ̧ [ ( Þ ‰ − P1 ) + p » U ‰ — p1U } ...
... drag on a body ( with the exception of any induced drag due to lift ) can be found by measuring the total momentum deficit in the wake . The drag per unit span of a two - dimensional body is D ' = [ __ ̧ [ ( Þ ‰ − P1 ) + p » U ‰ — p1U } ...
Page 129
... drag force without large displacements being produced by the lift force : the flexures are merely extended or compressed by the lift and pitching moment , but the drag applies a bending moment to them . Lift gauges Model Moment axis ...
... drag force without large displacements being produced by the lift force : the flexures are merely extended or compressed by the lift and pitching moment , but the drag applies a bending moment to them . Lift gauges Model Moment axis ...
Contents
CHAPTER THREE | 78 |
Fluctuating pressure measurements | 85 |
CHAPTER FOUR | 106 |
Copyright | |
24 other sections not shown
Other editions - View all
Experimental Fluid Mechanics: The Commonwealth and International Library ... P Bradshaw Limited preview - 2016 |
Experimental Fluid Mechanics: Thermodynamics and Fluid Mechanics Division P Bradshaw Limited preview - 2016 |
Common terms and phrases
aerofoil aeronautical aircraft angle approximately atmosphere balance body calculation calibration centre line components compressibility constant contraction correction cross-section density diameter diffuser dimensional analysis dimensions downstream duct dynamic pressure effect equation experimental experiments fluctuations fluid mechanics frequency ft/sec heat transfer high-speed tunnels hole hot wire incompressible flow length liquid low-speed tunnels Mach number manometer mean velocity method momentum motion non-dimensional nozzle obtained occur orifice parameter pitching moment Pitot tube plate pressure difference pressure gradient probe ratio reduced Reynolds number screen separation shear layer shear stress shock tube shock tunnel shock wave speed sphere static pressure steady strain gauge stream streamlines subsonic supersonic tunnels surface shear stress techniques tests thickness total pressure transonic turbulent boundary layer turbulent flow U₁ upstream usually variables velocity gradient viscous forces wake wall wind tunnel yaw angle zero ди