The teaching provides the basis for the study of fluids both in motion and at rest. By the end of the teaching, the student will be able to solve simple problems concerning the action of a fluid on a body contained within it and problems related to simple hydraulic systems.
The teaching 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.
On completion of the course, the student will have acquired knowledge that will enable him or her to:
Have a solid understanding of the topics covered in the courses GENERAL PHYSICS and MATHEMATICAL ANALYSIS I.
The teaching is divided into lectures and tutorials, both conducted by the teacher. In the lectures, the theoretical part of the teaching will be exposed. The theoretical part will be supplemented with examples and exercises, carried out in the classroom by students under the supervision of the teacher.
The exercises will consist of classroom correction of exercises, proposed beforehand, which the student will have done independently at home
Students with valid certifications for Specific Learning Disorders (SLDs), disabilities or other educational needs are invited to contact the teacher and the School's disability liaison at the beginning of teaching to agree on possible teaching arrangements that, while respecting the teaching objectives, take into account individual learning patterns.
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
Teacher's lectures notes(in Italian)
M. Mossa, A. F. Petrillo: Idraulica, C.E.A. (Casa Editrice Ambrosiana) - Gruppo Zanichelli, 2014 (in Italian)
Marchi – Rubatta: Meccanica dei fluidi: principi ed applicazioni idrauliche, UTET 1981
Ghetti: Idraulica Libreria Cortina. Padova 1980
Ricevimento: Students will be received by appointment, which can be fixed by sending an e-mail message to giovanna.vittori@unige.it
https://corsi.unige.it/8722/p/studenti-orario
Participation in the examination is subject to the fulfillment of the required propedeuticities.
The exam consists of a first written part (1 exercise) and an oral part.
The written test will be corrected immediately after its completion in the presence of the student. The discussion of the written test is part of the oral part.
To be eligible for the oral part, it is necessary to have passed the written test.
The oral part, which consists of two questions on the topics covered in the module, will take place immediately after the written test has been corrected and passed.
The written part of the verification is designed to ascertain that the student has acquired the techniques for solving the problems described in the training objectives. The oral part of the verification is designed to ascertain the degree of understanding of the techniques used and their scientific foundations within the subject matter, clarity of reasoning, competence in the use of scientific terms, and knowledge and degree of depth of the topics covered in the module
Contact the teacher for additional information not included in the teaching sheet.
