Engineering Hydrology, Teaching

EH 201. Elementary Hydraulics (2nd Civil and 2nd Environmental Engineering).

Fluid properties, pressure in a fluid, hydrostatics, forces and moments of forces on submerged surfaces; buoyancy and stability of floating bodies, theorems on conservation of mass, momentum and energy (Bernouilli's Theorem), measurement of fluid pressure, pressure difference and kinetic energy, flow measurement by Venturi, orifice and Pitot devices, and by notches and weirs, forces exerted by a jet and application to rotors and turbines, energy losses caused by frictional resistance to flow and form losses, i.e. energy losses due to enlargements and bends, etc. flow in pipes, uniform flow in open channels, transmission of power by pipeline, viscosity and oiled bearings, elements of pneumatics.

EH 202. Year's Work in Hydraulic Laboratory (2nd Civil and 2nd Environmenal Engineering).

Instruction in measurement of flow, pressure and viscosity, modern hydraulic data capture techniques (data loggers and electronic sensors). Experiments in pipe flow, open channel flow, venturi meter, force exerted on a bend (momentum principle), forced vortex, hydrostatics (centre of pressure, buoyancy/stability), thin plate weirs, friction and form/shock losses in a small bore pipeline. Demonstration of cavitation and flow visualisation techniques.

EH 204. Hydraulics (for 2nd Industrial Engineering only).

Lectures (24 hrs.). Fluid properties, pressure and manometry, simple hydrostatics, continuity, energy and momentum equations, hydraulic power, flow measurement principles, flow in pipes and open channels, Reynolds Number, Chezy and Manning equations.

Laboratory (12 x 2 hrs). Instruction in measurement of viscosity, pressure and flow, pump and pipeline characteristics, modern data loggers and electronic sensors. Experiments involving open channel flow, pipeline flow, venturi meter and momentum principle.

EN 306 Engineering Hydraulics 1 (3rd Civil and 3rd Environmental Engineering).

Flow in pipes, rough and smooth pipe laws, boundary layers, Colebrook-White equation, universal resistance diagrams, empirical resistance formulae, form losses, pipe networks and pumped systems. Energy and momentum principles in steady open channel flow including hydraulic jump, critical control sections and water surface profiles, introduction to hydraulic machinery. Selected case studies.

Assessment: Continuous assessment by analysis and design assignments/orals 20%.

End of Semester three hour examination 80%.

EH 405. Engineering Hydraulics II. (4th Civil and 4th Environmental Engineering).

Potential flow, seepage problems, flow nets, Navier-Stokes equations, uniformly progressive flow, unsteady flow by method of characteristics. Formulation of finite difference solution schemes for hydraulic applications, introduction to proprietary software (HEC-RAS, EPANET, 1-D FIDWVE). Water hammer and surge analysis.

Hydraulic design of pumped pipeline and distribution systems, outfalls, urban drainage systems, bridges/culverts, hydropower systems. Steady surface profile applications for flood investigations. Water quality and sediment related models.

Assessment: Continuous assessment/design 20%

End of Semester two hour examination 80%.

EH 406. Engineering Hydrology I (4th Civil and 4th Environmental Engineering).

Hydrological and energy cycles, properties of water, evolution of water quality in the natural environment. Measurement of precipitation, evaporation and streamflow. Calculation of mean areal rainfall, mean daily flow and flow duration curves. Hydrological frequency analysis – floods and low flows. Water vapour, humidity and evaporation. Water balance and water resources. Linear reservoir and unit hydrograph. Groundwater and groundwater protection. Introduction to some proprietary computer models.

Assessment: Assignments 25%, End of Semester 2 hour written examination 75%

EH 407. Engineering Hydrology II (4th Civil and 4th Environmental Engineering).

Interception, infiltration and evaporation processes, soil moisture measurement, soil moisture deficit calculation. Puls, Muskingum and kinematic flow routing. Unit hydrograph theory, use of S-curve, UH design flood calculations. Regional flood frequency analysis using L-Moments. Conceptual rainfall – runoff models, SMAR, O’Donnell, HEC1. Groundwater hydrology and contaminant transport. Additional proprietary computer models of runoff and groundwater flow.

Assessment: Assignments 25%, End of Semester 2 hour written examination 75%

EH305 Hydrology and Hydrogeology

An optional course for students of Third and Fourth Environmental Science and Earth Science, and Third Undenominated Science.

Lecturer: Professor Conleth Cunnane

Course Description: This class offers a comprehensive overview and introduction to the study of water above, on, and below the ground. Water movement, measurement and chemistry are studied in a hydrological context.

EH403 Hydrology

An optional course for students of Fourth Earth Science and Environmental Science.

Lecturer: Tiernan Henry.

Course

Description: This is an in-depth course that examines specific aspects of hydrology in detail. An applied course, EH403 uses many specific real-world case studies, it is split evenly between surface and groundwater issues.

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