20810027 - THERMO-FLUID DYNAMICS FOR PROPULSION SYSTEMS

FUNDAMENTALS OF COMPRESSIBLE FLOWS IN CHANNELS, INCLUDING NON ISENTROPIC RAYLEIGH AND FANNO FLOWS. OBLIQUE SHOCK WAVES. PRANDTL MEYER EXPANSIONS.
COMPRESSIBLE POTENTIAL FLOWS AND SMALL PERTURBATION THEORIES FOR SUBSONIC AND SUPERSONIC FLOWS. SUPERSONIC PROFILES AND WINGS.

THERMODYNAMIC DESCRIPTION OF AIR-BREATHING ENGINES AND PROPELLERS. BLADE ELEMENT THEORY.
teacher profile | teaching materials

Programme

PART 1: ELEMENTS OF GAS_DYNAMICS
Introductory concepts; isoentropic compressible flows and normal shock waves; design of gas-dynamic systems. Fanno and Rayleigh flows. Oblique shocks and odograph plane. Prandtlt-Meyer expansion. Compressible potential flows, linear theory and supersonic thin qirfoil. Characteristic method (in 2D and steady).
PART 2: AICRAFT PROPULSIVE SYSTEMS
Introductory concepts and classification. Performance parameters. Definition of thrust and power. Definition of efficiencies. Turbo-gas cycle (real and ideal). Simple turbojet; turbofan; ramjet; turboprop. Propellers and blade element theory. Nozzles and diffusera (sub- and super-sonic). Elements of combustion.

Several practical excercises are carried out during the course.

Core Documentation

Notes distributed by the teacher
HILL P., PETERSON C., “MECHANICS AND THERMODYNAMICS OF PROPULSION”, ADDISON WESLEY PUBL., 2ND ED., 1992.
CUMPSTY N., “JET PROPULSION”, CAMBRIDGE UNIV. PRESS, 1997.


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.

Type of evaluation

Oral examination. The examination dates will be communicated appropriately and published on the web site. Several possiblities will be given to the students to fix the exam starting from the first available date at the beginning of the exam session.