Numerical Study on Liquid Fuel Combustion of a Dump Type Ramjet Combustor

Dump형 램제트 연소기의 액체연료 연소유동 수치해석

  • 김성돈 (서울대학교 기계항공공학부 대학원) ;
  • 정인석 (서울대학교 기계항공공학부)
  • Published : 2005.10.06

Abstract

Due to the high density and heating value, liquid fuel is attractive for ramjet propulsion system. Liquid fuel requires time to evaporation and mix with incoming air before ignition; insufficient evaporation and mixing result in low combustion efficiency and instability. So the numerical studies are conducted to investigate the spray and combustion characteristics of a liquid-fueled dump type Integrated Rocket Ramjet combustor. The governing equations are solved by means of a finite-volume using time derivative preconditioning method for chemical reacting flow. The liquid phase is treated by solving Lagrangian equations of motion and transport for the life histories of a statistically significant sample of individual droplets.

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