# NIT Trichy Civil Engineering Syllabus Mechanics of Fluids I

## MECHANICS OF FLUIDS – I

Continuum concept – CGS, MKS and SI systems – Properties of Fluids – Ideal and real fluid – Pressure at a point – pressure variation – pressure measurement Hydrostatic forces on plane and curved surfaces – Buoyancy and equilibrium – Metacentric height and its determination-Types of flow – continuity equation for one, two and three *dimensional flows – stream function and velocity potential – flow net and its properties **Convective and local acceleration – Pressure, Kinetic and Datum energy – Bernoulli’s **theorem and proof – Euler’s equations of motion for a three dimensional flow and **along a streamline – Deduction of Bernoulli’s theorem – Momentum equation – applications.*

* Reynold’s experiment – Laminar and turbulent flow – Reynold’s number – critical flow – Navier-Stoke equations of motion – shear stress and pressure gradient – Laminar flow between parallel plates – Couette flow – Hagen Poiseuille equation for flow through circular pipes. Turbulence – semi empirical theories –Major losses – Darcy-Weisbach equation for flow through circular pipe – Friction factor – Smooth and rough pipes – Moody diagram – flow through non circular pipe – Minor losses – pipes in series and parallel – Equivalent length – Introduction to water hammer phenomena.*

**References**

*1. Nagaratnam, S., Fluid Mechanics, Khanna Publishers, 1995.
1. Natarajan, M.K. Principles of Fluid Mechanics, Oxford & IBH Publishing Co, 1994.
2. Jagdish Lal, Hydraulics and Fluid Mechanics, Tata McGraw Hill, 2001.
3. Streeter V.L., Fluid mechanics, Tata McGraw Hill, 1998.*