CODE  67397 

ACADEMIC YEAR  2022/2023 
CREDITS 

SCIENTIFIC DISCIPLINARY SECTOR  ICAR/01 
LANGUAGE  Italian 
TEACHING LOCATION 

SEMESTER  1° Semester 
PREREQUISITES 
Prerequisites
You can take the exam for this unit if you passed the following exam(s):
Prerequisites (for future units)
This unit is a prerequisite for:

TEACHING MATERIALS  AULAWEB 
The course of HYDRODYNAMICS provides the first basic knowledges on Fluid Mechanics and Hydraulics 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 .
Operative skills: Evaluation of hydrostatic forces on immersed plane and curved surfaces. Design and analysis of simple pipelines, also with the use of fluid machineries.
"Analisi Matematica" and "Geometria"
The lectures are organized in about 12 lessons. Each lesson is characterised by a first theoretical part and a second part of practice, with example problems.
To the end of guaranteeing the implementation of the anticovid19 regualtion, the lessons could be given completely or partly (mixed teaching) online in direct streaming.
Fundamentals of fluid mechanics  Fluid properties and classification. The continuum hypothesis. Cinematics of fluids. Eulerian and Lagrangian description of motion. Volume and surface forces acting on a fluid, pressure and stresses. Stress tensor in a fluid at rest. Hydrostatic law. Stress tensor in a fluid in motion. Material and local derivatives. Conservation of mass and momentum principles in integral and local forms. Inviscid fluid and Bernoulli's theorem.
Dimensional analysis  The π theorem. Similitude and modelling.
Fluid at rest: hydrostatics  Pressure distribution in an incompressible fluid and in a compressible, barotropic fluid. Forces on immersed plane and curved surfaces. Buoyancy of floating and immersed bodies.
Fluid in motion  Fluid current: definition of crossaveraged quantities. Conservation of mass and momentum principles for a current.
Pipe flow: evaluation of friction losses and local dissipations of energy in a steady and uniform flow. Design and analysis of simple pipe systems. Hints on pumps and turbines.
Office hours: The student reception is encouraged and will take place: in the office of the Professor (in Villa Cambiaso, Via Montallegro 1, Genova) upon appointment; by arranging an online meeting (using Teams, Skype or Hangouts).
All class schedules are posted on the EasyAcademy portal.
Examination consists of a written test and an oral interview on the entire course program. Three appeals take place in the summer session (June, July and September) and two appeals in the winter session (January and February). The written part consists of the solution of 45 exercises focusing on:
Candidates must be provided with pen, pencil, rubber and calculator. Books or texts and mobile phones are not allowed.
In order to access to the interview, the student is required to pass (score larger than 18) the written examination. The oral interview consists of questions on the written test and on the program in general.
Alternatively, there will be two midterm exams (the first one generally in November and the second one at the end of December) that will grant, if passed (average score larger than 18), direct admission to a brief oral interview (to be held exclusively in January). Only the students achieving a score larger than 15 in the first midterm examination are allowed to access to the second midterm examination.
The written test typically aims to ascertain the ability to apply the principles of fluid mechanics and to solve complex engineering problems that can be tackled in few hours, with the use of simple means of calculation (calculator with the four operations and simple mathematical functions). The interview completes the written part, dealing with the subjects whose learning cannot be directly ascertained with the written test. In the interview, questions that require the solution of simple problems on the blackboard are asked to the candidate. The interview also allows for a verification of student's communication skills.
Date  Time  Location  Type  Notes 

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