Numerical Investigation of 2DCD Nozzle Flow Having a Secondary Jet Injection for Thrust Vector Control

추력벡터제어를 위한 이차 분사유동이 있는 2DCD 노즐 내부의 수치적 연구

A numerical solution procedure has been developed to analyze the flow field resulted from the injection of a transverse jet through the divergent flap of a 2DCD nozzle for thrust vector control. The formulation employs the compressible Navier-Stokes equations in conservation law form and a two equation $\kappa-\omega$ turbulence model. Detailed numerical results are presented in this paper for the 2DCD nozzle over a range of secondary to primary injection mass flow ratios and nozzle pressure ratios.