OVERVIEW

Introductory course on fluid mechanics.

AIMS AND CONTENT

LEARNING OUTCOMES

The course aims to provide the student with basic knowledge on the motion of fluids. Such knowledge will be applied to the solution of hydrodynamic problems in global form and to the design and verification of simple hydraulic systems.

AIMS AND LEARNING OUTCOMES

The aim of the course is to provide the student with basic knowledge on the motion of fluids. At the end of the course the student will have acquired knowledge that will make him able to:

• calculate the action of a fluid at rest on surfaces and bodies inside it
• solve problems related to simple duct systems
• use the principles formulated in global form for the calculation of the action of a moving fluid  on surfaces and bodies inside it.

PREREQUISITES

Have a solid understanding of the topics covered in the courses GENERAL PHYSICS and MATHEMATICAL ANALYSIS I.

TEACHING METHODS

The teaching is divided into lectures held by the teacher, in which the theory will be exposed.

In the lectures, the theory  will be applied to different examples and the solution of some exercises will be carried out.
 
In the part devoted to  exercises, the student will carry out independently exercises proposed by the teacher. The exercises  will be corrected in the classroom by the teacher.

Students who have valid certification of physical or learning disabilities on file with the University and who wish to discuss possible accommodations or other circumstances regarding lectures, coursework and exams, should speak both with the professor of the course  and with Professor Federico Scarpa (federico.scarpa@unige.it ), the Polytechnic School - Engineering's disability liaison.

SYLLABUS/CONTENT

Fundamentals:

The Continuum assumption. Physical properties. Forces acting on a fluid. Pressure and stress in fluids. State equation.

Nonflowing fluids:

Stress in a fluid at rest. Integral and differential equations for a fluid at rest. Pressure distribution in a constant density fluid subject to gravity. Pressure forces on plane surfaces. Pressure forces on curved surfaces. Pressure variation across plane interfaces.

Kinematics of fluids:

Eulerian and Lagrangian description of the flow. Material derivative. Velocity and acceleration. Transport Theorem.

Fluid Dynamics:

Stress in a moving fluid. Mass conservation principle and its integral formulation. Momentum principle and its integral formulation. Integral formulation of the angular momentum law. Applications of the integral formulation of fluid flow (Force of a jet on a surface). Ideal fluids and Bernoulli theorem with applications ( stagnation pressure, Pitot tube)

Quasi-unidirectional incompressible flow:

Characteristic quantities (averaged velocity, discharge, The Piezometric Head, Kinetic Head, Total Head). Continuity equation. Momentum equation. Steady uncompressible flow in circular ducts. Bernoulli Theorem. Fundamentals on hydraulics networks.

Dimensional Analysis, model testing and similitude:

Dimensional analysis and Pi theorem. Applications (drag and lift on a body moving in a fluid).Model testing and similitude

Fundamentals of  boundary layer

RECOMMENDED READING/BIBLIOGRAPHY

1. Teacher's lectures notes(in Italian)

2. M. Mossa, A. F. Petrillo: Idraulica, C.E.A. (Casa Editrice Ambrosiana) - Gruppo Zanichelli, 2014 (in Italian)

3. Marchi – Rubatta: Meccanica dei fluidi: principi ed applicazioni idrauliche, UTET 1981

4. Ghetti: Idraulica Libreria Cortina. Padova 1980

TEACHERS AND EXAM BOARD

Exam Board

GIOVANNA VITTORI (President)

ANDREA BACIGALUPO

LUIGI CARASSALE

LUIGI GAMBAROTTA

MARCO MAZZUOLI

GIUSEPPE PICCARDO

RODOLFO REPETTO

DANIELE SIVORI

NICOLETTA TAMBRONI

FEDERICA TUBINO

MARCO LEPIDI (President Substitute)

LESSONS

LESSONS START

https://corsi.unige.it/8722/p/studenti-orario

Class schedule

The timetable for this course is available here: Portale EasyAcademy

EXAMS

EXAM DESCRIPTION

The exam consists of a first written part (1 exercise) and an oral part.

The written test will be corrected immediately after its conclusion in the presence of the student. The discussion of the written test by the student is part of the test.

In order to access the oral part it is necessary to have passed the written test.

The oral part will take place immediately after the correction and passing the written test.

In order to take the exam of the course the student must have passed the exams of "GENERAL PHYSICS" and "CALCULUS I

ASSESSMENT METHODS

The written part of the exam is aimed at ascertaining that the student has acquired the necessary tools to solve simple problems of Hydrodynamics. The oral part is aimed at verifying the student's understanding of the course topics.

Exam schedule