The KSFM Journal of Fluid Machinery (한국유체기계학회 논문집)

Korean Society for Fluid machinery (한국유체기계학회)
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Pre-swirl Nozzle Geometry Optimization to Increase Discharge Coefficient Using CFD Analysis

Pre-swirl system의 유량계수 향상을 위한 Pre-swirl nozzle의 형상 최적화 전산해석 연구

  • Lee, Hyungyu (Department of Mechanical Engineering, Hanyang University) ;
  • Lee, Jungsoo (Department of Mechanical Engineering, Hanyang University) ;
  • Kim, Donghwa (Department of Mechanical Engineering, Hanyang University) ;
  • Cho, Jinsoo (Department of Mechanical Engineering, Hanyang University)
  • Received : 2016.07.25
  • Accepted : 2016.10.20
  • Published : 2017.02.01
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Abstract

Optimization process of pre-swirl nozzle geometry was conducted to improve the discharge coefficient of pre-swirl system by using CFD. The optimization of pre-swirl nozzle shape covered the converging angle and the location of the converging nozzle. Optimization process included Optimal Latin Hyper-cube Design method to get the experimental points and the Kriging method to create the response surface which gives candidate points. The process was finished when the difference between the predicted value and CFD value of candidate point was less than 0.1 %. This paper compared the Reference model, Initial model which is the first model of optimization and Optimized model to study flow characteristics. Finally, the discharge coefficient of Optimized model is improved about 17 % to the Reference model.

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References

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