한국추진공학회지 (Journal of the Korean Society of Propulsion Engineers)

  • 제17권6호
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  • Pages.48-58
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  • 2013
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  • 1226-6027(pISSN)
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  • 2288-4548(eISSN)
한국추진공학회 (The Korean Society of Propulsion Engineers)
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초임계 압력 조건 스월 인젝터에서 4개 화학종 혼합물 케로신 대체 모델의 열역학 물성 특성 연구

Study on Thermophysical Property Characteristics of a 4 Species Kerosene Surrogate in a Swirl Injector at Supercritical Pressure Condition

  • Kim, Kukjin (Department of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Heo, Junyoung (Department of Aerospace and Mechanical Engineering, Korea Aerospace University) ;
  • Sung, Honggye (School of Aerospace and Mechanical Engineering, Korea Aerospace University)
  • 투고 : 2013.06.03
  • 심사 : 2013.10.29
  • 발행 : 2013.12.01
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초록

4개 화학종의 케로신 대체 모델과 다양한 상태 방정식을 이용하여 초임계 압력 조건의 스월 인젝터에서의 열역학 상태량 및 유동 특성을 연구하였다. 상태방정식에 따른 열역학 물성치의 정량적인 비교와 함께 large eddy simulation 및 예조건화 기법을 적용하여 스월 인젝터에서의 유동 특성 해석이 수행되었다. 초임계 스월 인젝터 내에서 열역학 물성치를 비교 조사하였고 상태량 예측 정확도가 인젝터에서의 유동 특성에 상당한 영향을 미치는 것이 관찰되었다. Redlich-Kwong-Peng-Robinson 상태 방정식이 넒은 온도 영역에서 가장 적절한 결과를 제시하였다.

Characteristics of thermophysical properties and flow structures in a swirl injector at supercritical pressure have been investigated using the kerosene surrogate consisting of four species and various ideal and real gas equations of state. The quantitative comparisons of thermophysical properties for equations of state have been performed. Also, a large eddy simulation and preconditioning technique for getting an effective convergence rate are applied to analyze turbulent flow in a swirl injector. The flow characteristics in the injector has significantly different behaviors depending on the equations of state due to the different thermophysical properties in the injector. The Redlich-Kwong-Peng-Robinson equation of state provides the most suitable results in the wide range of temperature.

키워드

참고문헌

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