CODE 66279 ACADEMIC YEAR 2022/2023 CREDITS 6 cfu anno 1 INGEGNERIA NAVALE 8738 (LM-34) - GENOVA SCIENTIFIC DISCIPLINARY SECTOR ICAR/01 LANGUAGE Italian TEACHING LOCATION GENOVA SEMESTER 1° Semester MODULES Questo insegnamento è un modulo di: STRUCTURAL MECHANICS AND HYDRODYNAMICS TEACHING MATERIALS AULAWEB OVERVIEW Hydrodynamics studies the motion of fluids and their interactions with the contours and with bodies inside. In this course, proposed for the Master's Degree, more advanced topics will be presented compared to the course with the same name proposed in the Degree course. AIMS AND CONTENT LEARNING OUTCOMES Provide the student with the necessary knowledge to tackle the study of the motion of bodies within viscous fluids. AIMS AND LEARNING OUTCOMES The intention is to provide the student with the cultural basis for the correct formulation of problems in which it is necessary to predict the motion of fluids and the forces it can exert on surfaces and bodies. At the end of the exam, the student will be able to make an informed and critical choice of the best model to use. Furthermore, he will be able to interpret correctly the results obtained, for example by using a numerical code that implements these models. TEACHING METHODS The teaching is divided into lectures held by the teacher, in which the theory will be exposed and exercises. In the lectures, the theory will be applied to different examples. In the part devoted to exercises, the student will carry out independently exercises proposed by the teacher. The exercises will be corrected in the classroom by the teacher. SYLLABUS/CONTENT 1. Kinematics. Eulerian and Lagrangian description, material derivative. Principle of mass conservation. 2. Dynamics. Tension and stress tensor. Momentum principle, momentum moment principle. 3. The constitutive relation for a Newtonian fluid, continuity and Navier Stokes equations. Boundary conditions.Exact solutions of Navier-Stokes equations. Unidirectional flows. 4. Ideal fluid. The scheme of irrotational flow. D'Alembert paradox. Two-dimensional irrotational motions. Flow field generated by a cylinder translating with constant velocity. 5. Flow field and forces on bodies in motion in a fluid. Drag and lift. Lift of slender bodies: the Kutta hypothesis. Added mass force. Induced drag. Morison equation. 7. Flow at high Reynolds numbers. Simplified equations of the boundary layer. Blasius solution. Von Karman integral equation. Boundary layer on flat plate in the laminar and in the turbulent regime. Transition to turbulence in the boundary layer. Separation of the boundary layer and introduction to the the control systems of the boundary layer. 8. Turbulent flows. Average speed and pressure, the Reynolds equations. The problem of closure and Boussinesq hypothesis. Near_wall turbulence. Introduction to two-equations turbulence models RECOMMENDED READING/BIBLIOGRAPHY Teacher's notes (downloadable from AulaWeb) Ronald Panton "Incompressible flow" Wiley and Sons Pijush K. Kundu, Ira M. Cohen and David R. Dowling "Fluid Mechanics - fifth edition" Elsevier 2012 G. K. Batchelor "An introduction to fluid dynamics" Cambridge university press TEACHERS AND EXAM BOARD GIOVANNA VITTORI Ricevimento: Students will be received by appointment, which can be fixed by sending an e-mail message to giovanna.vittori@unige.it PAOLO BLONDEAUX Ricevimento: It is possible to fix an appointment with the teacher by sending an e-mail message to: paolo.blondeaux@unige.it Exam Board GIOVANNA VITTORI (President) ANDREA BACIGALUPO PAOLO BLONDEAUX LUIGI GAMBAROTTA ROBERTA MASSABO' MARCO MAZZUOLI RODOLFO REPETTO NICOLETTA TAMBRONI ILARIA MONETTO (President Substitute) LESSONS LESSONS START https://corsi.unige.it/8738/p/studenti-orario Class schedule The timetable for this course is available here: Portale EasyAcademy EXAMS EXAM DESCRIPTION The exam is composed of a written and oral part. ASSESSMENT METHODS The written part of the exam is aimed at ascertaining that the student has acquired the necessary tools to solve simple problems of Hydrodynamics. The oral part is aimed at verifying the student's understanding of the course topics. Exam schedule Data appello Orario Luogo Degree type Note 17/01/2023 08:30 GENOVA Scritto + Orale 31/01/2023 08:30 GENOVA Scritto + Orale 14/02/2023 08:30 GENOVA Scritto + Orale 08/06/2023 08:30 GENOVA Scritto + Orale 06/07/2023 08:30 GENOVA Scritto + Orale 07/09/2023 08:30 GENOVA Scritto + Orale