Learning objectives
Knowledge and understanding:
Within the course the student will learn complementary and advanced concepts of open channel flows.
Applying knowledge and understanding:
The student will be able to apply mathemathical modeling to typical problems of civil and environmental engineering, such as the verification and the project of fluvial and hydraulic structures.
Making judgments:
The student will acquire advanced tools and a critical approach suitable to analyze practical problems concerning open channel flows.
Communication skills:
At the end of the course the student will be able to present the knowledges and the results of an analysis with competence and correct use of language.
Prerequisites
Fundamentals of Hydraulics.
Course unit content
In the course of Environmental and Coastal Hydraulics (II module) complementary concepts of the open channel flow theory are presented, with particular reference to practical problems concerning the analysis of environment dynamics.
Full programme
Complements to uniform open channel flows.
Uniform flow equations. Resistance laws. Roughness coefficients. Geometrical and hydraulic properties of channel and river sections. The energy principle in open channel flow. Froude number. Stage/discharge relationship in composite channels. Computation of the resistance coefficient in compound channels.
Steady open channel flows.
Steady gradually varied flow equations in a prismatic channel. Water surface profiles. Non-linearity in open channel flows: flow over a bump and flow between bridge piers. Flow measurement: the Venturi meter. Discharge calculation: the two lake problem. Changes of direction: flow around a bend. River confluence. Flows with lateral inflow and outflow.
Unsteady open channel flows.
One-dimensional equations of gradually varied unsteady open channel flow. The dam-break problem. Rapidly varied unsteady flow: bores. Surge at channel transitions. Surge moving in an inclined channel. Attenuation of a bore along a side weir.
Similitude in open channel flows. Fixed-bed river models.
Bibliography
Recommended books:
- V. T. Chow. “Open Channel Hydraulics”. McGraw-Hill, New York (1959).
- F. M. Henderson. “Open Channel Flow”. MacMillan Publishing Co., New York (1966).
Lecture slides and additional educational material (downloadable from the webpage of the course on the University web site "Web LEArning in Ateneo")
Teaching methods
The course is structured in frontal theory lessons on the blackboard (with the projection of slides) and numerical practices performed with the computer help. A technical visit to an engineering structure is usually organized.
Assessment methods and criteria
Oral exam.
Evaluation criteria:
- Theoretical issues (knowledge, understanding): 50%;
- Applications of theory (proficiency/making judgments): 35%;
- Presentation ability (communication skills): 15%.
Other information
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2030 agenda goals for sustainable development
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