によって Tanishq babbar 4年前.
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Fluid Mechanics
Fluid Mechanics
Examples of fluids
Glycerine
blood
Water
Types of fluid
Newtonian fluids
It has constant viscosity, with zero shear rate at zero shear stress.
Non-Newtonian
It does not follow Newton's law of viscosity, i.e., constant viscosity independent of stress
Ideal plastic Fluid
A fluid having the value of shear stress more than the yield value
Real fluids
fluids which have viscosity, surface tension, shearing force, and compressibility
Incompressible
The fluid with constant density
Compressible
the fluids with variable density
Applications
Bernoulli’s
Principle
Attraction between two parallel moving boats
Archimedes principle
Fish floating
floating of a big ship
Pascal’s Law
Hydraulic brakes
hydraulic lift
Properties
Specific Volume
units are m^3/kg
the ratio of the substance volume to mass
Pressure
the force applied perpendicular to the surface of an object per unit area over which that force is distributed
Temperature
Units are kelvin and celsius
It is average kinetic energy of particles in an object
Specific weight
Units are N/m^3 and lb/ft^3
It is weight per unit Volume of a material
Density
Units are g/cm^3
It is defines as mass per unit.
