Phys205A_Lecture36

Physics for Scientists & Engineers with Modern Physics (4th Edition)

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Lecture 36 Chapter 14 Fluid dynamics
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Types of Fluid Flow – Laminar vs Turbulent www.cora.nwra.com/ Turbulent flow z Laminar flow z Steady flow z Each particle of the fluid follows a smooth path z The paths of the different particles never cross each other z Every given fluid particle arriving at a given point has the same velocity z The path taken by the particles is called a streamline
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Types of Fluid Flow – Turbulent z An irregular flow characterized by small whirlpool-like regions z Turbulent flow occurs when the particles go above some critical speed
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Viscosity z Characterizes the degree of internal friction in the fluid z This internal friction, viscous force , is associated with the resistance that two adjacent layers of fluid have to moving relative to each other z It causes part of the kinetic energy of a fluid to be converted to internal energy www.chemistryexplained.com/Kr-Ma/Liquids.html
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Ideal Fluid Flow z There are four simplifying assumptions made to the complex flow of fluids to make the analysis easier (1) The fluid is nonviscous – internal friction
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Phys205A_Lecture36 - Lecture 36 Chapter 14 Fluid dynamics...

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