Module Catalogues, Xi'an Jiaotong-Liverpool University

Module Code: CEN205
Module Title: Hydraulics
Module Level: Level 2
Module Credits: 5.00
Semester: SEM1
Originating Department: Civil Engineering
Pre-requisites: CEN102

 Aims The aim of the module to advance the theoretical knowledge of Fluid Mechanics and apply fundamental and advanced concepts related to the design of pipe networks and open channel flow systems.
 Learning outcomes A. Analyse the fundamental hydraulic phenomena (velocity profiles, pipe friction, local losses, pipe networks, and water hammer) associated with steady and unsteady flows in closed conduits.B. Analyse the phenomena associated with steady (uniform, critical, gradually varied and rapidly varied flow) and unsteady flows in open channels.C. Combine the theoretical knowledge gained and apply advanced numerical techniques for the evaluation of the performance and optimization of pipe networks.D. Practically measure and assess the nature and phenomena occurring in closed and open channels flows
 Method of teaching and learning The module is taught through formal lectures, class tutorials and laboratory experiments.
 Syllabus Pipe Flow:1) Development of the basic equations of Fluid Mechanics for unsteady incompressible flow (Navier-Stokes equations). Gradient, divergence and rotation of velocity field. Stress tensor. 2) Flow in Pipes. Laminar and turbulent flow. Reynolds' experiment. Critical Reynolds number. Boundary layer and potential flow. Laminar flow in a pipe, Velocity distribution in a pipe. Poiseulle flow, Couette flow.3) Friction losses, Darcy Weisbach equation, The Moody diagram, Hazen Williams equation, The exponential formula.4) Minor Losses, Energy losses at expansions and contractions, Losses at pipe bends and fittings, Minor losses in pipelines.5) Pipeline Problems, Pipes in parallel and in series, Pipes at junctions, Branching pipe systems, Pipe networks, The Hardy-Cross procedure, Newton Raphson Method, Examples.6) Transient flow, Pressure changes resulting from small velocity changes, Pressure changes caused by instantaneous closure of a valve, Effects of fluid density and pipe elasticity, Surge tanks.7) Hydraulic Machinery, Hydraulic turbines (Pelton, Francis, Kaplan), Centrifugal water pumps, Head curve, Power curve, Efficiency curve, Duty point, Specific speed, Net positive suction head.Open Channel Flow:1) Introduction, Laminar and turbulent flows, Significance of Reynolds and Froude numbers, Pressure distributions in straight and curved channels, Examples.2) Specific and Total Energy, Critical flow and depth, Uniform flow, Chezy and Manning formulae, Critical slope, Wave propagation, Wave celerity, Examples.3) Gradually Varied Flow, Total and specific energy, Water surface profiles for various channel slopes, Integration of the water surface equation for wide rectangular channels, The Bresse equation. 4) Rapidly varied flow, The hydraulic jump and its location, Numerical solutions for complicated channel sections.
Delivery Hours
 Lectures Seminars Tutorials Lab/Prcaticals Fieldwork / Placement Other(Private study) Total Hours/Semester 39 13 13 85 150

## Assessment

 Sequence Method % of Final Mark 1 Examination 80.00 2 Numerical Coursework 10.00 3 Lab Report 10.00
 Module Catalogue generated from SITS CUT-OFF: 12/7/2019 7:37:58 PM