Chapter 15: Human Movement in a Fluid Medium

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Fluid Properties• Density (ρ) = mass / volume• Specific weight (γ) = ratio of weight tovolume• Viscosity = internal resistance to flowAtmospheric pressure and temperatureinfluence a fluid’s density, specificweight, and viscosity
BuoyancyArchimedes’ principle: the magnitude of thebuoyant force acting on a given body is equalto the weight of the fluid displaced by thebody.• F b = V d γCenter of Volume: point around which a body’svolume is equally distributed and at which thebuoyant force acts.
Page 1 and 2: Chapter 15:Human Movementin a Fluid
Page 3 and 4: The Nature of FluidsFluid:• Air a
Page 6: Laminar versus Turbulent FlowLamina
Page 11 and 12: Flotation of the Human Body• Floa
Page 13 and 14: Drag• F D = ½C D ρA p v 2Coeffi
Page 15 and 16: Skin FrictionSkin friction, surface
Page 18 and 19: Bernoulli’s principle• Pressure
Page 20: 15-8
Page 26 and 27: Foil ShapeFoil: shape capable of ge
Page 28: Foil Shape• Semi-foil shape of pr
Page 37: Propulsion in a Fluid Medium• Res
Page 44 and 45: Summary• The relative velocity of

Chapter 15: Human Movement in a Fluid Medium

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