Eventos Anais de eventos
COBEM 2017
24th ABCM International Congress of Mechanical Engineering
Propulsion Parameters of Noble-Abel Gases
Submission Author:
FERNANDO DE SOUZA COSTA , SP
Co-Authors:
FERNANDO DE SOUZA COSTA
Presenter: FERNANDO DE SOUZA COSTA
doi://10.26678/ABCM.COBEM2017.COB17-0235
Abstract
Propulsive parameters of rockets are usually defined for perfect gases with constant properties. However propellants can reach high temperatures and pressures in the chamber and real gas effects and variable thermal properties can be relevant. This paper derives equations for propulsion parameters of rockets, including specific impulse, characteristic velocity, critical mass flow constant and thrust coefficient, assuming isentropic one-dimensional flow of Noble-Abel gases with variable thermal properties.
Keywords
Noble-Abel gases, specific impulse, characteristic velocity, thrust coefficient
