The course of HYDRODYNAMICS provides the first basic knowledges on Fluid Mechanics to the students of the study course of Ingegneria Nautica. This course spans approximately 60 hours over one semester and provides 6 credits.
The course aims to provide students the foundation for the study of fluid dynamics , that is, the tools for the description of the motion of fluids and for the prediction of their movement knowing the forces exerted on them .
Evaluation of static forces on immersed plane and curved surfaces. Design and analysis of simple pipe networks, fluid machineries.
The lectures are organized in about 12 lessons. Eachone characterised by a first theoretical part and a second part of practice, with example problems.
Fundamentals - Fluid properties and classification. Cinematics of fluids. Eulerian and Lagrangian description of motion. Cauchy's continuum, forces, pressure and stresses. Stress in a fluid at rest. Hydrostatic law. Stress in a fluid in motion. Material and local derivatives. Conservation of mass and momentum principle in integral and local form. Inviscid fluid and the Bernoulli's law.
Fluid at rest: hydrostatics - Pressure distribution in an uncompressible fluid and in a compressible, barotropic fluid. Forces on immersed plane and curved surfaces. Buoyancy. Stability of floating and immersed bodies.
Fluid in motion: one-dimensional flow - Definition of cross-averaged quantities. Conservation of mass and momentum principle for a one dimensional flow: continuity and momentum equations.
Flow in pipes - Uniform and steady flow in a pipe. Friction losses. Local dissipations of energy. Design and analysis of simple pipe networks, fluid machineries.
Ricevimento: Appointments are arranged via email to nicoletta.tambroni@unige.it
NICOLETTA TAMBRONI (President)
MICHELE VIVIANI
27th september 2017.
First semester weekly lectures on wednesday morning from 9 to 13.
In order to access to the final oral examination, the student is required to pass a written exam. Both written and oral examination must take place on the scheduled dates. Alternatively, there will be two midterm exams (the first generally in November and the second at the end of December) that will grant, if passed, direct admission to the final oral examination (to be held in January).
Exam subscription It is mandatory to subscribe on-line, WITHIN AT LEAST 3 DAYS BEFORE the day of the test. Candidates must be provided with pen, pencil, rubber and calculator. Books or texts and mobile phones are not allowed. The oral examination must take place immediately after the written exam.
Written exam consists in 4 exercises on the following items:
1) Forces on immersed plane surface.
2) Forces on immersed curved surface.
3) Conservation of mass and momentum principles in integral form
4) Design and analysis of simple pipe networks.
The oral exam consists of a discussion of the written exam, plus two or three questions on the topics explained during the lessons.
