Programme

Introductory concepts, deformation and motion of a particle, Cauchy theorem, Eurlerian and Lagrangian description, the Reynolds transport theorem, the material derivative. Forces and moments on airfoils. Buckingham theorem. General governing equations in integral and differential form. Constitutive relationships for Newtonian fluids. Navier-Stokes equations, Bernouilli equation. Vorticity dynamics. Potential flows and singular solutions (the case of the cylinder). Boundary layer concepts and theoretical approach for a 2D steady case. The separation of the boundary layer. Compressible flows. Quasi- and Uni-dimensional models for isentropic flows and normal shockwaves. Low Reynolds number flows in ducts and Moody's diagram.

Core Documentation

Notes provided by the teacher

Reference Bibliography

Tests where arguments are treated similarly with respect to the notes, are: • Y. Cengel, J. M. Cimbala, “Meccanica dei Fluidi”, McGraw-Hill, 2014 (Edizione Italiana a cura di G. Cozzo, C. Santoro) • B.R. Munson, T.H. Okiishi, W.W. Huerbsch, A.P. Rothmayer, “Meccanica dei Fluidi”, Città Studi Edizioni 2016 (Edizione Italiana a cura di E. Larcan, P. Escobar Rojo) Other possible tests: 1) E. Mattioli: “Aerodinamica”, Levrotto & Bella Ed., 1994. 2) J. Anderson: “Fundamentals Aerodynamics”, McGraw-Hill, 1988. 3) Kundu P.: “Fluid Mechanics”, Academic Press, 1990. 4) G.K. Batchelor: “An Introduction to Fluid Dynamics”, Cambridge Univ. Press, 1973. 5) N.P. Cheremisinoff: “Enciclopedia of Fluid Mechanics. 1. Flow phenomena and measurements”, Gulf Publ. Comp., 1986. 6) M. Van Dyke: “An Album of Fluid Motion”, The Parabolic Press, 1982. 7) A.H. Shapiro: “The Dynamics and Thermodynamics of Compressible Fluid Flow”, The Ronald Press, 1954, Vol. I e II. 8) J.O. Hinze: “Turbulence”, 2nd ed., McGraw-Hill, 1975. 9) H. Schlichting: “Boundary-Layer Theory”, McGraw-Hill, 1979.

Type of delivery of the course

The course is carried out through traditional lessons given in the room and completed by suited laboratory sessions. Educational material will be rendered available through the web site (including the Moodle platform). During the course, seminars from aerospace industry experts will be given. Visits to aerospace research centers and companies close to the city area, are also planned. The number and location of the visits will be decided during the course along with possible organization constrain. In case of restrictions related to the persistence of the COVID-19 emergency, the procedures that will be adopted will be in line with the general provisions and will be based on the use of the Moodle platform as well as of other systems suited for the management of lessons and exams in remote mode (e.g. the MS Teams platform).

Type of evaluation

Oral examination. The examination dates will be communicated appropriately and published on the web site. Several possibilities will be given to the students to fix the exam starting from the first available date at the beginning of the exam session. In case of restrictions related to the persistence of the COVID-19 emergency, the procedures that will be adopted will be in line with the general provisions and will be based on the use of the Moodle platform as well as of other systems suited for the management of lessons and exams in remote mode (e.g. the MS Teams platform).