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Hydraulics II

Code 10289
Year 3
Semester S1
ECTS Credits 6
Workload TP(60H)
Scientific area Hidráulica e Ambiente
Entry requirements Concepts acquired in Mechanics and waves, Statics, Calculus III and Hydraulics I.
Mode of delivery Face-to-face.
Work placements Not applicable.
Learning outcomes The Hydraulic II curricular unit aim to provide the students a good training in the field of free surface flow, through orifices and over weirs and in porous media, as well as, the characteristics and operating conditions of pumps and turbines. Ensure a solid basis in solving problems or applications of this area in Civil Engineering. It also aims to contribute to their training under the critical thinking in problem solving and the acquisition of interpersonal skills of individual and team work.

At the end of the curricular unit the students must have acquired the following competences:
a) Ability of the computation of free surface profiles in steady flows on fixed bed open channels.
b) Ability of the determination of orifices and weirs flow capacity.
c) Ability of the computation of flow rates and piezometric levels in unidirectional flows in homogeneous porous media.
d) Knowledge on choice and functioning of pumps and turbines.
Syllabus 1. OPEN CHANNEL FLOWS: Uniform regime; Bernoulli’s theorem and specific energy; Types of flow; Total momentum; Froude number and flow control; Free surface profiles for constant flow rate; Hydraulic jump; Free surface profiles for spatially varied flow; Rapidly varied steady flows.
2. FLOWS THROUGH ORIFICES AND OVER WEIRS: Orifices in small thickness walls, in large thickness walls and submerged orifices; Sharp-crested weir; Crest shape weir.
3. FLOWS IN POROUS MEDIA: Darcy’s law and permeability; Permeability determination; Darcy’s law validity; Application of Darcy’s law to homogeneous and isotropic media; Unidirectional and radial flows.
4. TURBINES AND PUMPS: General description and installation conditions of turbines; Elementary theory of turbo-machines; Similarity of turbo-machines; Turbines functioning in steady conditions; Installation conditions of pumps; Pumps diagrams; Study of steady functioning based on characteristic curves; Choice of pumps.
Main Bibliography - Teacher's notes to support the course (available in E-CONTENTS).
- Manzanares, A.A. (1980). Hidráulica Geral II, Associação de Estudantes do IST.
- Quintela, A.C. (1985). Hidráulica, Fundação Calouste Gulbenkian.
- Chow, V.T. (1959). Open Channel Hydraulics, McGrawHill.
- Barbosa, J. N. “Mecânica dos Fluidos e Hidráulica Geral” (2 vol.), Porto Editora, 1985
- French, R. H., “Open Channel Hydraulics”, McGraw-Hill, 1986.
- Henderson, F. M., “Open Channel Flow”, McMillan, 1966.
- Lencastre, A. “Hidráulica Geral”, 1983
Teaching Methodologies and Assessment Criteria The evaluation is performed in two phases:
- Continuous evaluation (during the semester): 2 tests (theoretical and Practical) (FR) and 2 laboratory reports (LR).
- Final exam: 1 exam (theoretical and practical) (EX) and 2 laboratory reports (TL), for students admitted.

The Teaching-Learning Classification (CEA): CEA = 80% Average of FR + 15% Average of TL+5% class attendence.
The Final Exam Classification (CFE) = 80% EX Classification + 15% Average of TL+5% class attendence.
Approval requires: the minimum CF of 9.5 values; the minimum classification of 9.0 values in the average of the two tests or in the final exam and the minimum classification of 6.0 values in each test.

Tests date: 1st test: 5/11/2021 ; 2nd test: 13/01/2022.
Language Portuguese. Tutorial support is available in English.
Last updated on: 2022-01-28

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