The Course will provide the basics of low

thrust engines: applications and classifications for chemical and electrical

LTE, esothermic and endotermic engines. Thruster Principles, The Rocket

Equation. Specific Impulse. Thruster

Efficiency. Monopropellant cold

thrusters, Bi-propellant thrusters, Resistojet. Design of small thrusters: tank design, feed

systems, catalyst, thrust chamber, nozzle. Electric Propulsion Background and Electric

Thruster Types, Ion Thruster Geometry. Force Transfer in Ion and Hall Thrusters.

Basic Plasma Physics. Coulomb force, Electric Field, Magnetic field, Lorentz

equation, Maxwell’s Equations . Plasma as a Fluid: Conservation Equations. Diffusion in Partially Ionized Gases.Diffusion

and Mobility Without and Across Magnetic Fields. Sheaths at the Boundaries of Plasmas: Debye

Sheaths, Pre-Sheaths, Child–Langmuir Sheaths. Generalized Sheath Solution. Ion Thruster Plasma Generators. DC Discharge

Ion thruster. 0-D Ring-Cusp Ion Thruster Model. Magnetic Multipole Boundaries. Electron and Ion Confinement. Power and Energy Balance in the Discharge

Chamber. rf Ion Thrusters. 2-D Computer Models of the Ion Thruster Discharge

Chamber. Ion Thruster Accelerator Grids: configurations and life; Ion Optics

and Perveance Limits. Electron Backstreaming. High-Voltage and Electrode

Breakdown. Hollow Cathodes.

Overview and History of Airbreathing

hypersonic propulsion. Airbreathing engine design and sizing for given mission requirements.

Inlet, combustor and nozzle design. Reighley equation for heat flux in subsonic

and supersonic combustion. Performance. Solid and liquid Propellants. CFD for ramjet and scramjet applications.

- Teacher: ANTONELLA Ingenito