The study of the motion of a fluid and its interaction with structures of different types (wind on skyscrapers, sea waves on breakwaters, flood waves on piles of a bridge) can be addressed experimentally, theoretically or numerically. Theoretical and numerical analyzes are based on models and equations that descend from the fundamental principles of physics. The course illustrates the equations, the boundary conditions and the simplified models used to determine the motion of a fluid and the forces it exerts on the bodies it flows around
The module of Fluid Mechanics is aimed at describing the fundamental principles and at obtaining the equation that govern the motion of a fluid motion. Moreover, during the course, some simple problems of practical interest are formulated and solved
The course describes the procedures that allow the correct formulation of the problem and lead to the equations and boundary conditions necessary for the determination of the three-dimensional motions of incompressible fluids around bodies of arbitrarily shape with the aim of quantifying the different components of the force that the fluid exerts on the body. The course also provides the theoretical basis for subsequent courses that address typical problems of civil engineering such as wind engineering and maritime construction
Basic knowledge of calculus, physics and mathematical physics
frontal lectures
The description of the motion of a fluid. Local derivative and material derivative. Local analysis of a fluid flow. Strain rate and rotation speed tensors. The transport theorem. The principle of mass conservation and the continuity equation Cauchy axiom. The momentum principle. The tension tensor. Cauchy's equation. The mechanical power theorem The constitutive law and Navier-Stokes equations. The unidirectional flows The vorticity The inviscid fluid model and Bernoulli's theorem Irrotational flows (outline) and Morison's equation Boundary layers (outline) Turbulent motions and Reynolds equations
"Note di Meccanica dei Fluidi" freely downloadable from the Genova University Press website.
https://gup.unige.it/sites/gup.unige.it/files/pagine/Note_di_Meccanica_dei_Fluidi_ebook_indicizzato.pdf
Ricevimento: day and time to be agreed by sending an e-mail message to: paolo.blondeaux@unige.it
PAOLO BLONDEAUX (President)
MARCO MAZZUOLI
GIOVANNA VITTORI (President Substitute)
see the website of the Polytechnical School
The oral exam is aimed at verifying i) the mastery of the subject in general, ii) the understanding of the concepts and the different models illustrated during the course, iii) the ability to correctly formulate a mathematical model of the phenomena of interest for a Civil Engineer that involve the motion of a flui
