PHY2048_11-16-09 - Chapter 14: Fluids Lecture 32 11/16/2009...

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Chapter 14: Fluids Lecture 32 11/16/2009
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Fluids Goals for this Lecture: Study the behavior of ±uids. Static ±uids: Pressure exerted by a static ±uid Methods of measuring pressure Pascal’s principle Archimedes’ principle, buoyancy Real versus ideal Fluids in motion: Fluids Equation of continuity Bernoulli’s equation
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Ideal Fluids in Motion There are various types of ±uid motion: Steady ±ow : the velocity does not change with time. Incompressible ±ow : The density is constant. Nonviscous ±ow : No friction Irrotational ±ow : There is no rotation (*hurricanes are an example of rotational ±ow) Streamlines : the path of a ±uid element. The velocity of a ±uid is tangent to the streamline. Two streamlines do not intersect. A surface fallowing streamlines acts like a tube.
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The Equation of Continuity Consider a Fuid that is moving through a tube whose cross-sectional area is not constant The Fuid volume that passes through A 1 in a time ! t, must exit through A 2 (the Fuid is incompressible). V
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This note was uploaded on 02/12/2010 for the course PHY PHY taught by Professor Mueller during the Fall '09 term at University of Florida.

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PHY2048_11-16-09 - Chapter 14: Fluids Lecture 32 11/16/2009...

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