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The basics of Fluid Mechanics

What you will learn

Understand the applications of Fluid Mechanics and Define what is a fluid

Explain the various physical properties of Fluid

Understand Hydrostatic pressure and hydrostatic forces

Explain Bouyancy and Meta centric height

Description

Fluid mechanics is the branch of physics concerned with the mechanics of fluids (liquids, gases, and plasmas) and the forces on them. It has applications in a wide range of disciplines, including mechanical, aerospace, civil, chemical and biomedical engineering, geophysics, oceanography, meteorology, astrophysics, and biology.

It can be divided into fluid statics, the study of fluids at rest; and fluid dynamics, the study of the effect of forces on fluid motion. It is a branch of continuum mechanics, a subject which models matter without using the information that it is made out of atoms; that is, it models matter from a macroscopic viewpoint rather than from microscopic. Fluid mechanics, especially fluid dynamics, is an active field of research, typically mathematically complex. Many problems are partly or wholly unsolved and are best addressed by numerical methods, typically using computers. A modern discipline, called computational fluid dynamics (CFD), is devoted to this approach.Particle image velocimetry, an experimental method for visualizing and analyzing fluid flow, also takes advantage of the highly visual nature of fluid flow.

The study of fluid mechanics goes back at least to the days of ancient Greece, when Archimedes investigated fluid statics and buoyancy and formulated his famous law known now as the Archimedes’ principle, which was published in his work On Floating Bodies—generally considered to be the first major work on fluid mechanics. Rapid advancement in fluid mechanics began with Leonardo da Vinci (observations and experiments), Evangelista Torricelli (invented the barometer), Isaac Newton (investigated viscosity) and Blaise Pascal (researched hydrostatics, formulated Pascal’s law), and was continued by Daniel Bernoulli with the introduction of mathematical fluid dynamics in Hydrodynamica (1739).

Inviscid flow was further analyzed by various mathematicians (Jean le Rond d’Alembert, Joseph Louis Lagrange, Pierre-Simon Laplace, Siméon Denis Poisson) and viscous flow was explored by a multitude of engineers including Jean Léonard Marie Poiseuille and Gotthilf Hagen. Further mathematical justification was provided by Claude-Louis Navier and George Gabriel Stokes in the Navier–Stokes equations, and boundary layers were investigated (Ludwig Prandtl, Theodore von Kármán), while various scientists such as Osborne Reynolds, Andrey Kolmogorov, and Geoffrey Ingram Taylor advanced the understanding of fluid viscosity and turbulence

This course is mainly designed to help students prepare for the university exams in an easy manner and with minimum time

a)Fluid Mechanics and Applications

b)Definition of Fluid

c)Physical Properties of Fluid

d)Viscosity


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e)Hydrostatic Pressure

f)Hydrostatic Forces

g)Pressure

h)Center of Pressure

i)Manometer

j)Metacenter

k)Buoyancy

l)Stability

English
language

Content

Introduction

Introduction
Definition of a Fluid
Fluid
Continuum

Physical Properties of Fluid

Physical Properties 1
Viscosity
Viscosity Problem 1
Viscosity Problem 1 Solution
Different Types of Fluids

Hydrostatic Pressure

Pressure
Pressure Measurement
Pressure measurement Solution
Hydrostatic Pressure
Manometer
Manometer Problem 1
Problem Solution
Barometer

Hydrostatic Force

Pascals Law
Hydrostatic Force on vertical plane surface
Center of Pressure
Center of Pressure Problem
Problem Solution

Buoyancy and Floatation

Archimides Principle
Archimides principle problem
Metacenter
Metacenter
Metacenter problem
Problem Solution
Stability of a body