Search    Print

Idraulica
Hydraulics
Maurizio Brocchini

Seat Ingegneria
A.A. 2015/2016
Credits 6
Hours 48
Period I
Language ENG

Prerequisites
Knowledge of the basics of Mathematical Analysis and Physics

Learning outcomes
The course aims at providing the students with a solid knowledge of the fundamentals of Hydraulics and Fluid Mechanics, beyond practical tools for the solution of hydraulics problems.

Program
Introduction to the “scheme of fluid continuum”. The forces acting on a fluid. Quiescent fluids and the equation of the hydrostatic. The pressure in a quiescent fluid. The equation of state. Interfacial phenomena. The static thrust of a fluid on planar/non-planar surfaces. The fluids in motion: kinematics and local flow analysis. The principles of fluid mechanics and hydraulics. The Cauchy equation. Thermo-conductive, viscous fluids: constitutive laws and the theorem of mechanical power. The flow problem: the Navier-Stokes equation. Fundamental solutions of the Navier-Stokes equations. High Reynolds numbers flows. Vorticity dynamics and the Bernoulli theorem. The irrotational flows. Examples of planar irrorational flows. Dimensional analysis, similitude and models. The boundary layer theory. Friction and shape flow resistance. The separation of the boundary layer. Fundamentals of turbulent flows. Turbulent flows in pipes. The wall turbulence. The fluid streams. The equations for fluid streams. Distributed head losses. The flow in circular pipes. Localized head losses. Problems of design and control of hydraulic plants. Free-surface streams: the steady-uniform flow, the equation for the free-surface location, free-surface solutions for the riverine and torrent regimes. The hydraulic jump. Examples

Development of the examination
LEARNING EVALUATION METHODS
Pass of a written test with a valuation of at least 18/30 to access the oral exam

LEARNING EVALUATION CRITERIA
To positively pass the exam, the student has to demonstrate, through the above-mentioned tests, to be well acquainted with both theoretical concepts and use of the applicative tools of the Hydraulics.

LEARNING MEASUREMENT CRITERIA
For each of the avove-mentioned tests a mark between zero and thirty is given. The global mark, in thirtieths, is obtained by the weighted average of the marks obtained in the two tests (written and oral).

FINAL MARK ALLOCATION CRITERIA
For a global positive evaluation, the student has to get at least a sufficient mark (eighteen points), in all of the above-mentioned tests. Further, it is necessary that the student gets at least six thirtieths in each of the 2 exercises contained in the written test. The highest mark is achieved by a clear demonstration of the knowledge of the course contents. Honours are reserved to students who, having correctly and fully completed all the tests, have demonstrated an exceptionally clear knowledge of the topics.

Recommended reading
Marchi E. e Rubatta A., Meccanica dei Fluidi, UTET, Torino, 1981 Cengel Y e Cimbala J, Meccanica dei Fluidi, McGraw Hill, Milano, 2007.

Courses

• Ingegneria Meccanica (Corso di Laurea Triennale (DM 270/04))
• Ingegneria Civile e Ambientale (Corso di Laurea Triennale (DM 270/04))