ch9+1410+FA11+part+2

ch9+1410+FA11+part+2 - Fluids in Motion: Streamline Flow n...

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n Streamline fow n Every particle that passes a particular point moves exactly along the smooth path Followed by particles that passed the point earlier n Also called laminar fow n Streamline is the path n DiFFerent streamlines cannot cross each other n The streamline at any point coincides with the direction oF fuid velocity at that point ±luids in Motion: Streamline ±low
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Streamline fow shown around an auto in a wind tunnel Streamline Flow, Example
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n The fow becomes irregular n exceeds a certain velocity n any condition that causes abrupt changes in velocity n Eddy currents are a characteristic oF turbulent fow ±luids in Motion: Turbulent ±low
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n The rotating blade (dark area) forms a vortex in heated air n The wick of the burner is at the bottom n Turbulent air Fow occurs on both sides of the blade Turbulent ±low, Example
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n Viscosity is the degree of internal friction in the Fuid n The internal friction is associated with the resistance between two adjacent layers of the Fuid moving relative to each other ±luid ±low: Viscosity
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n The fuid is nonviscous n There is no internal Friction between adjacent layers n The fuid is incompressible n Its density is constant n The fuid motion is steady n Its velocity, density, and pressure do not change in time n The fuid moves without turbulence n No eddy currents are present n The elements have zero angular velocity about its center Characteristics oF an Ideal ±luid
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Flow Rate Flow rate is the volume of ±uid that passes a point in a given interval of time.
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This note was uploaded on 11/09/2011 for the course PHYS 1410 taught by Professor Staff during the Fall '08 term at Texas State.

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ch9+1410+FA11+part+2 - Fluids in Motion: Streamline Flow n...

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