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Improvement of the Performance of the Supersonic Abrasive Blasting Nozzle

초음속 연마가공 노즐의 성능개선에 관한 연구

  • Kwak, Ji-Young (Graduate School, Dept. of Aerospace and Mechanical Engineering, KAU UNIV.) ;
  • Jeon, Ik-Jun (School of Aerospace and Mechanical Engineering, KAU UNIV.) ;
  • Park, Se-Eun (School of Aerospace and Mechanical Engineering, KAU UNIV.) ;
  • Lee, Yeol (School of Aerospace and Mechanical Engineering, KAU UNIV.)
  • 곽지영 (한국항공대학교 대학원 항공우주 및 기계공학과) ;
  • 전익준 (한국항공대학교 항공우주 및 기계공학부) ;
  • 박세은 (한국항공대학교 항공우주 및 기계공학부) ;
  • 이열 (한국항공대학교 항공우주 및 기계공학부)
  • Received : 2015.09.16
  • Accepted : 2015.12.16
  • Published : 2016.04.30

Abstract

The dynamics of gas-particle flow from a supersonic abrasive blasting nozzle have been studied by 1-D analytical calculation, including wall friction effects inside the nozzle. The developed code in the present study shows a satisfactory agreement with the other study's results. By utilizing the code, the redesign and optimization of the inner contour of a commercial abrasive blasting nozzle were carried out, and it was found that the redesigned nozzle in the present study can produce faster particle velocities at the nozzle exit by up to 22% compared with the original commercial nozzle.

Acknowledgement

Supported by : 한국연구재단

References

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