# 31036 - Hydraulics T

### SDGs

This teaching activity contributes to the achievement of the Sustainable Development Goals of the UN 2030 Agenda.

## Learning outcomes

Knowledge of the basics of fluid mechanics and hydraulics. Specifically, the student will be able to evaluate i) the flow of perfect and real fluids; ii) the hydrostatic and dynamic thrust on surfaces; iii) the motion regime of a pipeline flow and of an open-channel flow; iv) the design of pipes and channels. Such learning outcomes will be the basis for the analysis and design of water management systems, hydraulic networks, urban water systems, river flood protection.

## Course contents

Requirements/Prior knowledge

A prior knowledge and understanding of basic of physics and math is required to attend with profit this course. Fluent spoken and written Italian is a necessary pre-requisite: all lectures and tutorials, and all study material will be in Italian.

Course contents

Fundamentals

Fluid properties: density, viscosity, comprimibility coefficient. Dimensional analysis and Buckingham theorem. State equation. Continuity equation.

Hydrostatics

Differential and integral equations. Forces on a submerged surface. Pressure measurement. Buoyancy.

Fluid Dynamics

The stress tensor. Constitutive equation. Newtonian and non-Newtonian fluids. Velocity and acceleration in fluid flow. Momentum equation and its applications. Euler equation. Bernoulli equation. Navier-Stokes equations.

In pipes

Reynolds experiment. Laminar and turbulent flow. Moody diagram. Uniform pipe-flow. Calculation of head loss. Generalised Bernoulli Theorem. Solution of pipe flow problems for single and multiple path systems. Pumping systems.

In open channels

Free-surface flow: uniform and steady flow. Free-surface profiles. Hydraulic jump. Weirs and sluice gates. Venturi channel.

Mossa, Petrillo. Idraulica. C.E.A. (Casa Editrice Ambrosiana) - Gruppo Zanichelli, 2013

Citrini, Noseda. Idraulica. CEA Milano 1987

## Teaching methods

The course consists of lectures, excercises in the class and scheduled excercises at the pc.

During the lectures, the key concepts and the theoretical and practical knowledge are illustrated. During the excercises in the class, example applications to schematic and real cases are performed.

## Assessment methods

Achievements will be assessed by the means of a final exam, which consists of a written test and an oral discussion. The written session consists of a test, whose duration is fixed in 3 hours and is composed of 4 excercises, without the support of textbooks or notes. To be eligible to take the oral exam the student must score in the written test a minimum total of 18/30 points.

The oral session consists of technical conversation with the lecturer. The exam is aimed at assessing the acquired knowledge, the ability of synthesis and application of the key course contents.
To obtain a passing grade, students are required to demonstrate a good knowledge and understanding of the key concepts of the subject, together with good ability for applications.
Higher grades will be awarded to students who demonstrate the full knowledge of the subject, the capacity of a clear and critical presentation of the contents, the appropriate use of the technical language.
A failing grade will be awarded if the student shows knowledge gaps in the key-concepts of the subject, inappropriate use of the technical language, and/or logic failures in the analysis of the subject.

## Teaching tools

Teaching tools are available at: http://campus.cib.unibo.it/

## Office hours

See the website of Barbara Zanuttigh