# JNTUK R20 2-1 Fluid Mechanics Materials | Full Notes PDF Download

Students taking JNTUK’s R20 Civil Branch Can Download the unit-specific R20 2-1 FluidMechanics Material/Notes. Below are the PDFs.

OBJECTIVES:

• To better understand how fluid properties work as well as fluid statics.
• To determine the equation of mass conservation and to apply it
• To resolve kinematic issues such as locating particles’ paths and smoothing
• To use the concepts from the continuity equation, Turbulence and Bernoulli’s equation and use them to issues
• To understand turbulent and laminar flow patterns
• To be aware of the various flow measurement devices. To learn in-depth about the boundary layer theorem.

UNIT-1

Introduction Dimensions and Units The physical characteristics of liquids – Specific gravity viscosity and vapour pressure, their influence on fluid movement and stress at a point, Pascal’s Law, Hydrostatic law atmospheric gauge pressures and vacuum pressures- measurements of pressure. Pressure gauges Manometers Differential as well as Micro Manometers.

Hydrostatics Forces of hydrostatic force on submerged planes, horizontal vertical, inclined, and curved surfaces – the centre of pressure.

UNIT-2

Fluid Kinematics Description of the fluid flow, streamlines, paths, streak stream tube and line. They classify as steady, irregular, unsteady, non-uniform turbulent, laminar Irrotational and rotational flows Equation of continuity for one, two, and three-dimensional flows including velocity and stream functions Analysis of flow nets.

Fluid Dynamics Body and surface forces the equations of Bernoulli and Euler to describe flow along a line of stream Momentum equation and its application to move on bends of pipe.

UNIT-3

Laminar flow as well as Turbulent flows: Reynold’s experiment – Specific characteristics of Laminar and Turbulent flows, shear and velocity distributions laws of fluid friction, Hagen-Poiseulle’s Formula, Flow between plates that are parallel, Long tubes that flow through fluid and turbulent flow.

Closed Conduit flow Darcy-Weisbach Equation, small losses of pipes in series, pipes that are parallel – Total energy line as well as Hydraulic gradient lines, variations of friction coefficient by Reynold’s numbers – Moody’s chart Pipe network problems Hazen-Williams ‘ formula, Hard-Cross Method

UNIT-4

Measurement of the flow Pitot Tube, Venturi orifice meter, and Pitot tube the classification of orifices large orifice, and small orifice. They flow through trapezoidal, rectangular, triangular and stepped notches, Broad crested weirs, and Ogee weirs.

UNIT-5

Boundary Layer Theory: Boundary layer (B.L.) Concepts, Prandtl contribution, Characteristics of the boundary layer on an elongated flat plate Vonkarman’s momentum integral equation turbulent and laminar Boundary layer (no deviations)(no deviations) B.L. in transition Separation of B.L. and control of B.L. the movement around submerged objects- Drag and Lift-Magus effect.

Text Books:

1. Modi P.N as well as Seth S.M. (2018), “Fluid mechanics”, Standard book house, New Delhi

2. A text on Hydraulic and fluid mechanics, R.K.Bansal- Laxmi Publications (P) Ltd., New Delhi

References:

1. K.Subramanyam Hydraulic machines and fluid mechanics Mcgraw Hill Education, IInd edition

2. Fluid Mechanics and Machinery, C.S.P. Ojha, R. Berndtsson and P.N. Chandramouli, Oxford Higher Education.

3. Principle of Fluid mechanics as well as fluid machine III Edition University Press

OUTCOMES:

1. Know the various properties of fluids and their impact on fluid motion. You can also study multiple issues in fluid dynamics and fluid statics.
2. Calculate the forces that exert force on submerged curves and planes.
3. Ability to analyse different kinds of the flow of fluids.
4. Apply the integral formulas of three basic principles in fluid mechanics on laminar and turbulent flow in pipes and ducts to forecast relevant pressures, velocities, and forces.
5. Accurately measure the quantity of fluid that flows through the channels, tanks and pipes.