Effects of Swirl number and Recess length on Flame Structure of Supercritical Kerosene/LOx Double Swirl Coaxial Injector

선회수와 리세스 길이가 초임계상태 케로신/액체산소 이중 와류 동축형 분사기의 화염구조에 미치는 영향 해석

This study has been mainly motivated to numerically model the supercritical mixing and combustion processes encountered in the liquid propellant rocket engines. In the present approach, turbulence is represented by the extended k-e model. To account for the real fluid effects, the propellant mixture properties are calculated by using generalized cubic equation of state. In order to realistically represent the turbulence-chemistry interaction in the turbulent nonpremixed flames, the flamelet approach based on the real fluid flamelet library has been adopted. Based on numerical results, the detailed discussions are made for the effects of swirl number on flame structure of supercritical kerosene/LOx double swirl coaxial injector.