Journal of the Korean Society for Aviation and Aeronautics (한국항공운항학회지)

The Korean Society for Aviation and Aeronautics (한국항공운항학회)
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Effect of Diaphragm Thickness on Regression Rate Improvement in Hybrid Rocket Motor

다이아프램 두께 변화에 따른 하이브리드 로켓의 후퇴율 향상에 관한 연구

  • 류성훈 (한국항공대학교 항공우주 및 기계공학부) ;
  • 오지성 ((주)한화 대전사업장 개발팀) ;
  • 문근환 (한국항공대학교 대학원 항공우주 및 기계공학과) ;
  • 김학철 (한국항공대학교 대학원 항공우주 및 기계공학과) ;
  • 문희장 (한국항공대학교 항공우주 및 기계공학부) ;
  • 김진곤 (한국항공대학교 항공우주 및 기계공학부)
  • Received : 2015.08.05
  • Accepted : 2015.12.10
  • Published : 2015.12.31
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Abstract

In this work, a study was conducted to investigate the effect of diaphragm thickness on the regression rate of the hybrid rocket motor. To observe the flow pattern and the recirculation zone, visualizations of combustion chambers with different diaphragm thickness (5mm, 10mm) were performed. It was found that the case with 5 mm thickness had a larger recirculation zone and therefore, had a higher regression rate than the case with 10mm thickness due to the increased residence time and heat transfer toward the fuel surface. Finally, it was concluded that the thickness of diaphragm can be a critical parameter for the enhancement of the regression rate.

Keywords

References

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Cited by

  1. Rheological Investigation of Aluminized Paraffin Wax Fuel on Particle Size and Contents vol.22, pp.2, 2018, https://doi.org/10.6108/KSPE.2018.22.2.011