Unit STATICS AND FUNDAMENTALS OF WATER DESIGN

Course
Building engineering and architecture
Study-unit Code
A002660
Curriculum
In all curricula
Teacher
Emanuela Speranzini
CFU
10
Course Regulation
Coorte 2021
Offered
2022/23
Type of study-unit
Obbligatorio (Required)
Type of learning activities
Attività formativa integrata

FUNDAMENTALS OF WATER DESIGN

Code A002661
CFU 5
Teacher Silvia Meniconi
Teachers
  • Silvia Meniconi
Hours
  • 45 ore - Silvia Meniconi
Learning activities Affine/integrativa
Area Attività formative affini o integrative
Academic discipline ICAR/01
Type of study-unit Obbligatorio (Required)
Language of instruction Italian
Contents Basic differential equations for fluids
Fluid Statics
Inviscid fluids
Finite control volume analysis
Viscous liquids
Measurement of hydraulic quantities
Short pipes: analysis of functioning conditions
Long pipes in uniform flow
Open channel flow in steady-state conditions
Reference texts As often happens in Italy, the used textbooks are in Italian. Foreign students should contact the teaching staff about the most suitable textbooks in English.
Educational objectives The course of FONDAMENTI DI WATER DESIGN is the first one concerning water resources. Its main aim is to provide students with the basic analytical tools to analyze quantitatively flow processes. In such a context, both the local (by means of differential equations) and global approach will be followed. Particularly, the continuity equation and the momentum equations will be derived from the fundamental eqautions of Physics, as relaible tools for engineers. Moreover, attention will be paid to empirical relationships that are used for solving practical problems of the hydraulic engineering. For each empirical relationship, the range of validity will be pointed out. Great attention will be devoted to 1-D models which are the hearh of IDRAULICA with respect to Fluid Mechanics.

The main competence will be:

- to use the proper approach (local, global, 1-D modeling);

- to analyze the given problem selecting data and unknowns properly;

- to solve implicit equations (e.g. the friction formulas) reliably;

- to use EPANET code and make practice with AQUALIBRIUM.
Prerequisites In order to be able to understand and apply most of the topics explained during the course, you must have successfully passed the Fisica Generale and Analisi II courses. Particularly you should be familiar with continuous functions, limits, derivatives, and simple and double integrals.
Teaching methods The course is organized as follows:

- lectures on all the topics of the course;

- exercises about all the practical topics discussed during the course;

- laboratory tets at the Water Engineering Laboratory of the Dipartimento di Ingegneria Civile ed Ambientale (http://www.ing1.unipg.it/laboratori/sede-principale/laboratorio-di-ingegneria-delle-acque) about open channel flow and pressure pipe systems;

- EPANET short course (https://www.epa.gov/water-research/epanet) and AQUALIBRIUM competition (http://www.aqualibriumcompetition.net/joomla/) coupled.

- HECR-RAS short course (https://www.hec.usace.army.mil/software/hec-ras/).

For all topics, the strong links between theory and practical engineering problems are pointed out.
Other information Tests wil be executed at the Water Engineering Laboratory of the Dipartimento di Ingegneria Civile ed Ambientale.
Learning verification modality With regard to the modality of the exam, you have the following two options:

two-steps exam: within such a modality, the exams consists in two phases. The first phase happens immediately during the lessons’ break in November and the second phase is at the end of the course (in December or in January): they are written exams (usually three questions and available time: 1.5 hours for each exam). The first exam concerns the topics explained during the first part (from basic differential equations for fluids to short pipes) with an exercise on fluid statics or on short pipes; the second exam concerns the topics explained during the second part of the course (from long pipes to flow through porous media).

unique-step exam: within such a modality, the exam consists in an oral test, with a duration of about 1 hour, which includes four questions about all the topics explained during the course and an exercise about one of the practical topics discussed during the whole course.
Within both the modalities, your communication skill and autonomy in the organization and exposure of the topics will be tested.
A problem concerning hydrostatics, steady-state flow in pressurized pipes, and steady-state flow in open channels has to be solved numerically to be admitted to the oral exam.
Extended program Basic differential equations for fluids
Some characteristics and properties of fluids and liquids. Stresses. Newton's law and Newtonian fluids. State equation. Kinematics of fluids. Lagrangian and Eulerian approach. Flow field description. Continuity equation. Newton's second law and fluid dynamics equation.

Fluid Statics
Basic equation for pressure field. Stevin's law. Hydrostatic pressure behavior. Hydrostatic force on a plane surface. Mariotte's formula. Problems.

Inviscid fluids
Euler's equation. Bernoulli theorem. Gradually varied flows. Venturi principle. Bernoulli theorem for a gradually varied flow.

Continuity equation for a flow.

Viscous liquids
Bernoulli equation for viscous liquid flows. Reynolds pipe flow experiments: laminar and turbulent flows. Darcy - Weisbach equation and friction losses (Moody chart, Poiseuille equation, Blasius equation, Colebrook-White equation. Swamee-Jain equation).

Measurement of pressure, discharge, and level: definition of full scale, frequency acquisition, accuracy, precision, signal to noise ratio (SNR).

Short pipes: analysis of functioning conditions
Sudden expansion of a pressurised flow: the Borda equation. Minor losses (inlets, valves, bends, outlets,...). Hydraulic grade line. Short and long pipes. Problems.

Long pipes in uniform flow
Design and analysis of functioning conditions (branched and looped systems). Pumping stations. EPANET. Problems.


Open channel flow
Characteristics of open channel flow with respect to pressurised flow. Uniform depth channel flow. Gradually varied flow. Hydraulic jump. HEC-RAS. Problems.

STATICS

Code GP003210
CFU 5
Teacher Emanuela Speranzini
Teachers
  • Emanuela Speranzini
Hours
  • 45 ore - Emanuela Speranzini
Learning activities Caratterizzante
Area Analisi e progettazione strutturale per l'architettura
Academic discipline ICAR/08
Type of study-unit Obbligatorio (Required)
Language of instruction Italian
Contents Rigid body. Beams and systems of beams with straight axis.
-cinematic behaviour, - - static behaviour
-equilibrium equations
-diagrams of the axial force, shear force and bending moment. Truss
beams. Principe of virtual work for rigid body.
Reference texts Reference texts Main book:“Statica –Fondamenti di meccanica strutturale” E. Guarenti, F.
Buccino, E. Garavaglia, G. Novati, - Mac Graw Hill.
Other suggested books: “Lezioni di Scienza delle Costruzioni”, G.
Menditto, - Pitagora
“Esercitazioni di Scienza delle Costruzioni”, E. Viola – Pitagora – vol.1.
Other material is available on Unistudium-unipg:
- The slides that the teacher uses during the lessons;
- Texts of exercises that students are invited to solve for the preparation of the exam.
- Exam exercises texts of previous years.
Educational objectives The main objective is to give students the basis for dealing with the study of the
structural systems which consist of straight axis beams, in static
equilibrium. The student will acquire theoretical and practical knowledge
for the resolution of isostatic structures.
The main skill will be the analysis of kinematic and static behavior of one dimensional systems, the determination of the internal forces (axial
force, shear force, and bending moment).
Prerequisites The knowledge acquired at Analysis I, Physics and Geometry courses is
necessary.
Teaching methods Theoretical and practical lectures. Classroom exercises are planned so
that students can check the level of learning they have achieved.
Other information Working and / or non-attending students can also contact the teacher by email to receive the necessary clarifications.
Students with disabilities and / or with DSA for any need can contact directly the teacher of the teaching of Statics (who is the referent for disability and DSA of the Department of Engineering).
Learning verification modality A written exam concerning the resolution of an isostatic structure (in the time of 2 hours) and a subsequent oral test on all the topics covered in the course.
It is necessary to reach the vote of 18/30 for admission to the oral test.
The completeness of the answer, the argumentative rigor and the
ownership of language will be assessed.
Extended program Rigid body. Finite and infinitesimal rigid displacements.
Beams and systems of beams with straight axis:
-types of support
-types of loads
-statically determinate beams: linear axis beams
-cinematic behaviour, static behaviour
-equilibrium equations
-diagrams of the axial force, shear force and bending moment
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