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Sem 4 - FLUID MECHANICS – II


Module 1
Flow in open Channel – Uniform and non uniform flow, equations for uniform flow – Chezy’s and Manning’s formula, Most economical cross sections – Velocity distribution in open channels, Conveyance of a canal section, Normal depth, computation of uniform flow, Energy in open channel flow, specific energy, specific force diagrams, critical velocity, critical states of flow, Froude number, measurement of discharge in channels.
Module 2
Gradually varied flow – Dynamic Equation for gradually varied flow, Different forms of the dynamic equation, Characteristics of surface profiles in prismatic channels, backwater computation by direct step method.
Module 3
Rapidly varied flow, hydraulic jump – initial and sequent depths, non-dimensional equation, Practical application of hydraulic jump, Types of jump in horizontal floor, Basic characteristics of the jump, Energy loss, efficiency, height of jump, jump as energy dissipater, stilling basins, Location of hydraulic jump.
Module 4
Hydraulic Machines – Impact of jet, Force of jet on stationary and moving plates – turbines – Classification, velocity triangle for Pelton, Francis, Kaplan turbines, Specific speed, selection of turbines, draft tube – types, Penstock, surge tank – types, tail race.
Module 5
Centrifugal Pumps – Types, Velocity triangle for pumps, Head of pump, Losses and efficiency, Minimum starting speed, Specific speed, Multistage pump, Pumps in parallel. Positive displacement pumps – working principle, types of reciprocating pumps, work done, effect of acceleration and frictional resistance, slip and coefficient of discharge. Indicator diagram, separation in suction and delivery pipes. Air vessel – rate of flow into and from air vessel.
References
Ven Te Chow, Open Channel Hydraulics, Mc Graw Hill Ltd.
K. Subrahmanya, Flow in open channel vol.1, Tata McGraw Hill, New Delhi
Dr. P. N. Modi & Dr. S. M. Seth, Hydraulics & Fluid Mechanics, Standard Book House, Delhi.
Jagadheesh Lal, Hydraulic Machines, Metropolitian Book Co., New Delhi.
mg university b.tech syllabus S4 Civil