Fluid Mechanics is the branch of physics that studies the behavior of fluids (liquids and gases) at rest and in motion.
Fluid Mechanics is the study of how fluids (liquids and gases) behave under different conditions, including their motion, forces acting on them, and the effects of pressure, velocity, and temperature. It is essential in engineering applications such as hydraulics, aerodynamics, and pipeline design. 
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Fluid Mechanics: Topics & Contents
1. Introduction to Fluid Mechanics
- Definition and importance
- Fluids vs. solids
- Properties of fluids (Density, Viscosity, Surface tension, Compressibility)
2. Fluid Statics (Hydrostatics)
- Pressure and its measurement (Manometers, Barometers)
- Pascal’s Law
- Hydrostatic forces on submerged surfaces
- Buoyancy and stability (Archimedes’ Principle)
3. Fluid Kinematics (Study of fluid motion without considering forces)
- Types of flow (Laminar vs. Turbulent, Steady vs. Unsteady, Compressible vs. Incompressible)
- Streamlines, Pathlines, Streaklines
- Continuity equation
4. Fluid Dynamics (Fluid Motion with Forces)
- Bernoulli’s equation and applications
- Euler’s equation of motion
- Momentum equation and its applications
5. Flow Through Pipes and Channels
- Reynolds number and flow regimes
- Darcy-Weisbach equation
- Major and minor losses in pipes
- Hydraulic gradient and energy line
6. Boundary Layer Theory
- Concept of boundary layer
- Laminar and turbulent boundary layers
- Drag and lift forces
7. Dimensional Analysis and Similitude
- Buckingham π theorem
- Dimensionless numbers (Reynolds, Froude, Mach, Prandtl)
8. Compressible Fluid Flow
- Speed of sound and Mach number
- Isentropic flow and shock waves
9. Hydraulic Machines
- Pumps (Centrifugal, Reciprocating)
- Turbines (Pelton, Francis, Kaplan)
- Efficiency and performance analysis
10. Open Channel Flow
- Uniform and non-uniform flow
- Specific energy and critical depth
- Hydraulic jumps
