Urban Hydrology (250430) – Course 2024/25 PDF
Contents
Introduction of the general concept of Urban Drainage and the objectives associated to the drainage system: rainfall data, urban basins, sewer system, flooding, overflows to receiving waters and related impacts.
Dedication
2h Large group + 2h 48m Self StudyIn this session we introduce the main design criteria used in drainage systems: type of sections, maximum and minimum velocities, etc. Flood risk assessment framework. Definition of the concept of hazard, exposure, vulnerability and risk. Socio-economic and environmental impacts. Return period.
Dedication
3h Large group + 4h 11m Self StudyIn this sessions, rainfall data needed to perform a detailed hydrologic study in urban areas is presented. Real and synthetic Intensity-Duration-Frequency and design storms used in the professional practice are introduced. Design Storms Examples and applications
Dedication
2h 30m Large group + 1h 30m Medium group + 7h Self StudyDescription of the theoretical concepts of the most common loss models used in urban drainage. Examples and applications of the different loss processes in urban environment.
Specific Objectives
Learn to estimate hydrological losses in different urban contexts.
Dedication
1h 30m Large group + 1h 30m Medium group + 2h 48m Self StudyDescription of the most common techniques (reservoir model, kinematic wave model, rational method) for the simulation of the rainfall-runoff transformation process. Examples and applications
Dedication
1h Large group + 1h Medium group + 2h 48m Self StudyHydraulic analysis of grate inlets. Experimental procedures. Concept of efficiency and captured flow.
Specific Objectives
Provide to the student the concepts of the hydraulic behaviour of a grated inlet. Characterization of hydraulic efficiency and estimation of captured flows.
Dedication
2h Large group + 2h 48m Self StudyStreet network and street flow. Maximum flow in a street. Flood hazard criteria in terms of maximum flow, water level, velocity, etc. Calculation of the optimum distance between consecutive inlets.
Specific Objectives
Provide to the student the concept of surface flow along the street network during a rain event. Estimation of the maximum acceptable flow in a street. Definition of flood hazard criteria associated to street flow. Apply the concepts of flood hazard, street flow and inlet hydraulics to define the spacing between two inlets. Simulations through hydrological tool.
Related Activities
Coursework 1: design of optimal inlets spacing.
Dedication
2h Large group + 3h Laboratory classes + 7h Self StudyDescription and classification of storm tanks with hydraulic (anti-flooding) and environmental (anti-pollution) functions. Design and maintenance criteria.
Specific Objectives
Introduce to the student the concept of a detention basin. Advantages and disadvantages. Dimensions and other elements for inlet and outlet. Cleaning and maintenance criteria. Observe through a real case the main characteristics of a detention basin.
Related Activities
Field visit to a storm storage tank in the Barcelona Metropolitan Area.
Dedication
2h 30m Large group + 3h 5m Medium group + 5h 20m Self StudyDescription and classification of the most common urban sustainable drainage systems. Design and maintenance criteria.
Specific Objectives
Provide to the student the vision of the "soft" techniques, trying to reduce runoff and water quality pollution during rain events.
Dedication
1h Large group + 1h 24m Self StudyHydraulic behaviour of sewer systems. Steady and unsteady flow approaches.
Specific Objectives
Introduce to the specific aspects of the hydraulic behaviour of sewer networks: free surface and pressure flow.
Dedication
2h Large group + 4h 48m Self StudyDescription of the most used monitoring equipment in the field of urban drainage. Selection, location and maintenance criteria.
Dedication
1h Large group + 2h Medium group + 2h 4m Self StudyDedication
2h Laboratory classes + 2h 48m Self StudyWater quality aspects and sewer system overflows. Simulation and real measurements.
Specific Objectives
Introduce the CSO and SSO concepts and the risk to receiving waters during wet weather conditions.
Dedication
2h Large group + 2h 48m Self StudyMos common commercial codes: SWMM5, InfoWorks, Mike-Urban and others Introduction on modelling and and test case through SWMM5 code.
Specific Objectives
Present to the student the main commercial coeds available to the practitioner to use in urban drainage Introduce the public domain code SWMM5 developed by the EPA and its main capabilities.
Related Activities
Coursework 2: Sewer system analysis. Model calibration. Simulation and rehabilitation of a network with SWMM5.
Dedication
1h Large group + 8h 30m Laboratory classes + 13h 20m Self Study