Provide the know-how to analyse the operating principle and characterise the performances of the propulsive systems used in aeronautics. The objective is pursued strengthening the expertise in thermodynamics and gas dynamics. Specific attention will be paid to the description of the fundamental elements of propeller- and jet-engine-based propulsive systems.
teacher profile teaching materials
General definitions; laws of thermodynamics; calculation of entropy variation; ideal and real thermodynamic cycles
PART 2: FUNDAMENTALS of GASDYNAMICS
Introductory concepts; governing equations for compressible flows; inviscid compressible flows; quasi-1D model for compressible flows; isentropic flows; 1D model for compressible flows; normal shocks; evolution of compressible flows in convergent and divergent ducts; entropy evaluation in a compressible flow; standard atmosphere
PART 3: PROPULSIVE SYSTEMS
Introductory concepts and classification. Performance parameters. Definition of thrust and power. Definition of efficiencies. Simple turbojet; turbofan; turboprop. Propellers and blade element theory. Nozzles and diffusers (subsonic and supersonic flows).
HILL P., PETERSON C., “MECHANICS AND THERMODYNAMICS OF PROPULSION”, ADDISON WESLEY PUBL., 2ND ED., 1992.
CUMPSTY N., “JET PROPULSION”, CAMBRIDGE UNIV. PRESS, 1997.
Programme
PART 1: FUNDAMENTALS of THERMODYNAMICS ELEMENTS OF GAS-DYNAMICS/THERMO-DYNAMICSGeneral definitions; laws of thermodynamics; calculation of entropy variation; ideal and real thermodynamic cycles
PART 2: FUNDAMENTALS of GASDYNAMICS
Introductory concepts; governing equations for compressible flows; inviscid compressible flows; quasi-1D model for compressible flows; isentropic flows; 1D model for compressible flows; normal shocks; evolution of compressible flows in convergent and divergent ducts; entropy evaluation in a compressible flow; standard atmosphere
PART 3: PROPULSIVE SYSTEMS
Introductory concepts and classification. Performance parameters. Definition of thrust and power. Definition of efficiencies. Simple turbojet; turbofan; turboprop. Propellers and blade element theory. Nozzles and diffusers (subsonic and supersonic flows).
Core Documentation
Notes provided by the professorHILL P., PETERSON C., “MECHANICS AND THERMODYNAMICS OF PROPULSION”, ADDISON WESLEY PUBL., 2ND ED., 1992.
CUMPSTY N., “JET PROPULSION”, CAMBRIDGE UNIV. PRESS, 1997.
Reference Bibliography
Notes provided by the professor 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 lectures given in the room. Educational material will be made 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 constraints. Remote lessons (MS Teams platform) might be envisaged if needed.Attendance
The attendance to the class is not mandatory but recommended in order to pass the exam. The attendance is not verified and there are no penalties for those who do not attend the class.Type of evaluation
Oral and written examination. The examination dates will be communicated in due time and published on the website.