Abstract In a broad sense, propulsion is the act of changing the motion of a body. Propulsion mechanisms provide forces which move bodies that are initially at rest, change a constant velocity motion, or overcome retarding forces when a body is propelled through a medium. There are two essential elements in any propulsive mechanism: the energy source and an energy conversion device to transpose the energy into the form most suitable for propulsion. In an automobile, for example, a chemical combustion process of fuel with air furnishes the energy input, which is then transformed in an engine into thermal energy of a gas and subsequently by transformation into the mechanical energy through a rotating shaft and wheels to imparting momentum to the vehicle.
Rocket Classifications, Liquid Propellant Rockets, Engine Selection, and Heat Transfer
Jet, Rocket, Nuclear, Ion and Electric Propulsion ; 3 ; 277-307
Applied Physics and Engineering ; 7 , 3
1968-01-01
31 pages
Article/Chapter (Book)
Electronic Resource
English
NTRS | 1972
|NTIS | 1968
|Liquid propellant space rockets
NTRS | 1967
|Heat-transfer processes during ignition of solid propellant rockets
Engineering Index Backfile | 1967
|