The gas flow is constant (i.e., steady) during the period of the propellant burn.The gas flow is isentropic (i.e., at constant entropy), frictionless, and adiabatic (i.e., there is little or no heat gained or lost).For simplicity, the gas is assumed to be an ideal gas.The conceptual analysis of gas flow through a de Laval nozzle involves a number of assumptions: It is now used in nearly all modern rocket engines propelled by the hot gases produced by combustion of a fuel. Ī de Laval nozzle was used in the first liquid fuel rocket engine designed and launched in 1926 by Robert Goddard, an American physicist and rocket pioneer. The nozzle was developed by Swedish inventor Gustaf de Laval in 1888 for use on an impulse steam turbine.
0 kommentar(er)
