Fluid Mechanics

                                                       Fluid Mechanics

                INTRODUCTION TO FLUID MECHANICS

Mechanics: 

     It  is the oldest physical science that deals with both stationary and moving bodies under the influence of forces. A substance in the liquid or gas phase is referred to as a fluid. A fluid deforms continuously under the influence of shear stress, no matter how small.

Fluid Mechanics:

Fluid mechanics is defined as the science that deals with the behavior of fluids at rest or in motion. 

Branches of fluid mechanics:

There are three branches of fluid mechanics as follows:

1) Fluid statics

2) Fluid kinematics

3) Fluid dynamics

1) Fluid statics:

The study of fluids at rest. The study of fluids which are completely at rest.

2) Fluid kinematics:

The study of fluids in motion, where pressure forces are not considered.

3) Fluid dynamics:

If the pressure forces are also considered for the fluids in motion,that branch is called fluid dynamics.

                 Some Applications Of Fluid Mechanics:

1. sea / river (flood) defences
2. water distribution
3. Hydraulic design of water
4. Dams
5. Irrigation
6. Pumps and turbines
7. water retaining structures