INDUSTRIAL FLUID-DYNAMICS

Course objectives

GENERAL OBJECTIVES The course aims to systematically frame the students' knowledge in the field of the fluid dynamics of internal and external flows. Starting from the analysis of simple analytical solutions, the student will be introduced to the study of semi-exact solutions for wing profiles and finite span wing surfaces, in the context of industrial applications. The course also aims to familiarize the student with the most appropriate theoretical and practical methods for the engineering analysis of turbulent flows, and for the evaluation of the aerodynamic force and moment coefficients for slender and bluff bodies. An integral part of the course are a series of computer exercises to introduce the students to the main techniques of numerical analysis applied to aerodynamics. SPECIFIC OBJECTIVES 1. Know and understand the approaches used in the engineering analysis of aerodynamic problems 2. Knowing how to use the models learned in solving real case studies 3. Knowing how to choose the most appropriate methodological approach (analytical and modeling) in solving problems related to internal and external aerodynamic phenomena 4. Knowing how to present and defend the knowledge and skills acquired during an oral interview 5. Knowing how to write a technical report on issues relating to aerodynamics 6. Ability to autonomously continue acquiring new knowledge in specialist fields of fluid mechanics

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SERGIO PIROZZOLI Lecturers' profile

Program - Frequency - Exams

Course program
Equations of motion Balance of mass, momentum, energy Balance of entropy Transport equation of vorticity Potential flows Elementary solutions: vortex, source, doublet Composite solutions: flow around cylinder, spiral vortex Cylinder with circulation: Kutta-Joukovsky theorem Potential flow around arifoils: starting vortex and Kutta conditions Bernoulli's theorem Applications: Pitot tube, Venturi tube Potential flows around airfoils Method of simgularities Vortex layer Glauert's theory of airfoils Computation of force and torque coefficients Center of pressure, aerodynamics center Potential flows around airfoils Vortex filaments, Biot-Savart's law Bound vortex and traling vortices Prandtl's theory of horsesoe vortex Lifting line theory Induced incidence and induced drag Stability of laminar flows Linearized NS equations for parallel flows Method of normal modes: Orr-Sommerfeld equation Squire's theorem Rayleigh equations and stability criterion Critical Reynolds number Secondary instabilities and transition to turbulence Turbulence Statistical analysis: Reynolds decomposition Reynolds average equations Reynolds stress tensor Constitutive relations for parallel flows Boussinesq closure Balance of turbulence kinetic energy Law of the wall for turbulent channels and boundary layers Friction laws: Moody diagram Energy cascade and Kolmogorov scales Kolmogorov's inertial spectrum Turbulence models with 0, 1, and 2 equations Basic notions of nonlinear eddy viscosity modesl and Reynolds stress models Phenomenology of turbulence and Large-Eddy Simulation Smagorinsky model
Prerequisites
Basic knowledge of mathematical analysis and differential calculus. Basic knowledge of the theory of partial differential equations. Basic knowledge of fluid mechanics.
Books
Stephen B. Pope - Turbulent Flows - Cambridge University Press 2002 Pijush K. Kundu and Ira M. Cohen - Fluid Mechanics - Academic Press 2002 Charles Hirsch - Numerical Computation of Internal and External Flows - Academic Press 2007
Frequency
In presence
Exam mode
The course includes numerical simulation activities using open-source computational codes to be carried out by the student. These activities will be part of the final evaluation, along with an oral exam aimed at assessing the knowledge and skills acquired during the course.
Lesson mode
The course includes numerical simulation activities using open-source computational codes to be carried out by the student. These activities will be part of the final evaluation, along with an oral exam aimed at assessing the knowledge and skills acquired during the course.
  • Lesson code10609409
  • Academic year2025/2026
  • CourseGreen Industrial Engineering for Sustainable Development
  • CurriculumGREEN TECHNOLOGIES
  • Year2nd year
  • Semester1st semester
  • SSDING-IND/06
  • CFU6