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Students those who are studying JNTUK R19 Civil Branch, Can Download Unit wise R19 2-2 Hydraulics and Hydraulic Machinery (H&HM) Material/Notes PDFs below.

OBJECTIVES:

• To study about uniform and non uniform flows in open channel and also to learn about the characteristics of hydraulic jump
• To introduce dimensional analysis for fluid flow problems
• To understand the working principles of various types of hydraulic machines and Pumps.

UNIT-1

UNIFORM FLOW IN OPEN CHANNEL: Types of channels –Types of flows – Velocity distribution – Energy and momentum correction factors – Chezy’s, and Manning’s formulae for uniform flow – Most Economical sections, Critical flow: Specific energy-critical depth – computation of critical depth

UNIT-2

NON-UNIFORM FLOW IN OPEN CHANNELS: Steady Gradually Varied flowDynamic equation, Mild, Critical, Steep, horizontal and adverse slopes-surface profiles-direct step method- Rapidly varied flow, hydraulic jump, energy dissipation.

UNIT-3

HYDRAULIC SIMILITUDE: Dimensional analysis-Rayleigh’s method and Buckingham’s pi theorem-study of Hydraulic models – Geometric, kinematic and dynamic similarities-dimensionless numbers – model and prototype relations.

UNIT-4

BASICS OF TURBO MACHINERY: Hydrodynamic force of jets on stationary and moving flat , inclined and curved vanes, jet striking centrally and at tip, velocity triangles at inlet and outlet, expressions for work done and efficiency-Angular momentum principle.

UNIT-5

HYDRAULIC TURBINES – I: Layout of a typical Hydropower installation – Heads and efficiencies – classification of turbines. Pelton wheel – Francis turbine – Kaplan turbine – working, working proportions, velocity diagram, work done and efficiency, hydraulic design, draft tube – theory and efficiency. Governing of turbines-surge tanks-unit and specific quantities, selection of turbines, performance characteristics-geometric similarity-cavitation.

PUMPS :

CENTRAIFUGAL-PUMPS: Pump installation details-classification-work done- Manometric head-minimum starting speed-losses and efficiencies-specific speed, multistage pumps-pumps in parallel and series – performance of pumps-characteristic curves- NPSH- Cavitation.

RECIPROCATING PUMPS: Introduction, classification, components, working, discharge, indicator diagram, work done and slip.

TEXT BOOKS:

1. Open Channel flow, K. Subramanya, Tata McGraw HillPublishers
2. Fluid mechanics and hydraulic machines, Rajput, A.K(2018) , S chand ,NewDelhi
3. Fluid Mechanics, Modi and Seth, Standard bookhouse.

REFERENCE BOOKS:

1. Fluid Flow in Pipes and Channels, G.L. Asawa,CBS
2. Fluid Mechanics and Machinery, C.S.P. OJHA, R. BERNDTSSON and P.N. Chandramouli, Oxford Higher Education.
3. Fluid Mechanics and Machinery, Md. Kaleem Khan, Oxford Higher Education.
4. Fluid mechanics and Hydraulic machines, R.K. Bansal, Laxmi publications, New Delhi.

OUTCOMES:

• Solve uniform and non uniform open channel flow problems.
• Apply the principals of dimensional analysis and similitude in hydraulic model testing.
• Understand the working principles of various hydraulic machineries and pumps