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.


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    Title :

    Rocket Classifications, Liquid Propellant Rockets, Engine Selection, and Heat Transfer


    Contributors:


    Publication date :

    1968-01-01


    Size :

    31 pages





    Type of media :

    Article/Chapter (Book)


    Type of material :

    Electronic Resource


    Language :

    English




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