关键词: 液体推进剂火箭发动机;燃烧室;紊流;数值解

Abstract: Numerical computation of velocity and turbulent intensity distributions are presented in this paper for the cold gas flow in a sudden enlarged combustion chamber of the liquid propellant rocket.The computational results are compared with the experimental data, and good agrrement is found.The method can be used as a reference of further design and research.

Key words: Liquid propellant rocket engine;Combustion chamber;Turbulent flow;Numerical solution