Fluid Mechanics
Fluid mechanics is the branch of physics that studies fluids (liquids, gases, and plasmas) and the forces on them. Fluid mechanics can be divided into
1) fluid statics, the study of fluids at rest;
2) fluid kinematics, the study of fluids in motion;
3) fluid dynamics, the study of the effect of forces on fluid motion.
Fluid Mechanics Overview
Fluid is a substance that is capable of flowing. It has no definite shape of its own. It assumes the shape of its container. Liquids and gases are fluids
Types of Fluids:
Fluids can be classified into four basic types. They are: 1) Ideal Fluid 2) Real Fluid 3) Newtonian Fluid 4) Non-Newtonian Fluid 5) Ideal plastic fluid
1. Ideal Fluid:
An Ideal Fluid is a fluid that has no viscosity. It is incompressible in nature. Practically, no ideal fluid exists.
2. Real Fluid:
Real fluids are compressible in nature. They have some viscosity.
Examples: Kerosene, Petrol, Castor oil
3. Newtonian Fluid:
Fluids that obey Newton’s law of viscosity are known as Newtonian Fluids. For a Newtonian fluid, viscosity is entirely dependent upon the temperature and pressure of the fluid.
Examples: water, air, emulsions
4. Non-Newtonian Fluid:
Fluids that do not obey Newton’s law of viscosity are non-Newtonian fluids.
Examples: Flubber, Oobleck (suspension of starch in water).
5. Ideal Plastic Fluid: an ideal plastic fluid has shear stress which is more than the yield value but after that it obeys the newtonian law of viscosity.
PROPERTIES:
Properties of fluids determine how fluids can be used in engineering and technology. They also determine the behaviour of fluids in fluid mechanics. The following are some of the important basic properties of fluids: 1) Density 2) Viscosity 3) Temperature 4) Pressure 5) Specific Volume 6) Specific Weight 7) Specific Gravity
1) Density:
Density is the mass per unit volume of a fluid. In other words, it is the ratio between mass (m)
1) fluid statics, the study of fluids at rest;
2) fluid kinematics, the study of fluids in motion;
3) fluid dynamics, the study of the effect of forces on fluid motion.
Fluid Mechanics Overview
Fluid is a substance that is capable of flowing. It has no definite shape of its own. It assumes the shape of its container. Liquids and gases are fluids
Types of Fluids:
Fluids can be classified into four basic types. They are: 1) Ideal Fluid 2) Real Fluid 3) Newtonian Fluid 4) Non-Newtonian Fluid 5) Ideal plastic fluid
1. Ideal Fluid:
An Ideal Fluid is a fluid that has no viscosity. It is incompressible in nature. Practically, no ideal fluid exists.
2. Real Fluid:
Real fluids are compressible in nature. They have some viscosity.
Examples: Kerosene, Petrol, Castor oil
3. Newtonian Fluid:
Fluids that obey Newton’s law of viscosity are known as Newtonian Fluids. For a Newtonian fluid, viscosity is entirely dependent upon the temperature and pressure of the fluid.
Examples: water, air, emulsions
4. Non-Newtonian Fluid:
Fluids that do not obey Newton’s law of viscosity are non-Newtonian fluids.
Examples: Flubber, Oobleck (suspension of starch in water).
5. Ideal Plastic Fluid: an ideal plastic fluid has shear stress which is more than the yield value but after that it obeys the newtonian law of viscosity.
PROPERTIES:
Properties of fluids determine how fluids can be used in engineering and technology. They also determine the behaviour of fluids in fluid mechanics. The following are some of the important basic properties of fluids: 1) Density 2) Viscosity 3) Temperature 4) Pressure 5) Specific Volume 6) Specific Weight 7) Specific Gravity
1) Density:
Density is the mass per unit volume of a fluid. In other words, it is the ratio between mass (m)