Introduction To Fluid Mechanics

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Introduction to Fluid Mechanics
Fluid mechanics is the branch of branch of physics that studies the mechanics of fluids (Liquids, gases and plasma) and the forces on them. Fluid mechanics can be divided into fluid statics, the study of fluid at rest; and fluid dynamics, the study of effect of forces on fluid motion. It is the branch of continuum mechanics, a subject that models matter without using the information that is made out of atoms; that is, it models matter from macroscopic viewpoint rather than from microscope. Fluid mechanics can be mathematically complex, and best be solved by numerical methods, typically using computer A modern discipline, called computational fluid dynamics(CFD), is devoted
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Fig.1 Visualization of a moving Fluid
Fluid dynamics often offers a systematic structure—that embraces empirical and semi-empirical laws derived from flow measurement and used to solve practical problems. The solution to a fluid dynamics problem, typically involved calculating various properties of the fluid, such as velocity, pressure, and temperature, density as functions of space and time. Applications of Fluid Mechanics
2.1 Bernoulli 's Principle in Action: As fluid moves from a wider pipe to a narrower one, the volume of the fluid that moves a given distance in a time period given does not change. But as the width of the narrower pipe is smaller, the fluid must move faster (that is, with greater dynamic pressure) in order to move the same amount of fluid the same distance in the same amount of time. Observe the behavior of a river: in a wide, unconstructed region, it flows slowly, but if its flow is narrowed by canyon walls, it speeds

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