


Politecnico di Torino  
Academic Year 2012/13  
07BOXMN Fluid Mechanics 

1st degree and Bachelorlevel of the Bologna process in Mechanical Engineering  Torino 





Subject fundamentals
The aim of the course is to give the basic knowledge of fluid properties of compressible and incompressible fluids and their behavior. Elementary problems are given such as computation of forces in static and dynamic conditions and analysis of fluid motion in pressurized pipelines will be discussed.

Expected learning outcomes
Knowledge of the properties of compressible and incompressible fluids.
Knowledge of the functioning of instruments for measuring static, kinematic and dynamic properties of fluids Knowledge of problems related to turbulent flows Knowledge of design methods for pressurized pipes in permanent regime Ability to perform the dimensioning of pipelines Ability to calculate fluid forces on surfaces. 
Prerequisites / Assumed knowledge
Knowledge of calculus (differential equations, integrals) and the concepts of physics relating to mechanics

Contents
Fluids and their characteristics: definition of fluid; fluids as continuous systems; variables and units of measure of fluid mechanics, physical properties, flow regimes; stresses in continuous systems. (3 hours)
Statics of fluids: Local and controlvolume equations; statics of uncompressible heavy fluids; pressure measurement; forces on flat surfaces; forces on curved surfaces; forces on immersed bodies. (6 hours) Kinematics of fluids: Eulerian and Lagrangian approaches; velocity and acceleration, continuity equation and state equations. Flow regimes. (2 hours) Local and controlvolume flow equations for real fluids. (3 hours) Dynamics of ideal fluids: Euler’s equation. Controlvolume equation; Bernoulli's theorem; applications; extension of the Bernoulli theorem to a stream; Venturimeters and nozzles. (8 hours) Dynamics of real fluids: Reynolds' experiment; laminar flow; general characteristics of turbulent flow; Reynolds’ stresses; smooth and roughwall flow; Moody's chart; empirical formulas. Concentrated head losses. (10 hours) Long pipelines: applications; Cost optimization. Flow calculation in looped networks. Cross method. (4 hours) Elevation issues in pipelines. Cost optimization for pumping systems. Reservoirs and flow management. (3 hours) 
Delivery modes
Exercises (18 hours) about practical applications of theoretical principles will be presented .
Laboratory visits (3 hours) will show examples of the processes described in the theoretical lectures about flow processes and energy dissipation in pipes. 
Texts, readings, handouts and other learning resources
Munson, Okiishi, Huebsch, RothMayer Meccanica dei Fluidi. Casa Editrice Citta Studi
Cengel, Cimbala Meccanica dei Fluidi. Casa Editrice McGraw Hill Citrini, Noseda  IDRAULICA  Casa editrice CEA S. Longo, MG Tanda. Esercizi di Idraulica e Meccanica dei Fluidi. Casa Editrice Springer Alfonsi, Orsi. Problemi di Idraulica e Meccanica dei Fluidi. Casa Editrice Ambrosiana 
Assessment and grading criteria
Butera: A written multiple choice test [10 questions (1.5 points each) + 1 exercise (5 points)] and an oral exam. The student accesses to the oral exam if the written exam is passed with a grade >12.
Camporeale: A written multiple choice test [15 questions (1.5 points each) + 5 exercises (1.5 points each)] + 1 open question. The oral exam is facultative. The open question is assessed only if the test is passed with a grade > 18/30. The overall grade is 70% from the test and 30% from the open question. 
