Journal of computational fluids engineering (한국전산유체공학회지)

Korean Society of Computational Fluids Engineering (한국전산유체공학회)
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DESIGN FOR AERODYNAMIC NOISE REDUCTION OF RAILWAY TRACTION MOTOR USING LBM

격자볼츠만기법을 이용한 전동차용 견인전동기 공력소음 저감 설계

  • Kim, J.H. (Applied Technology Research Team, Hyndai Rotem Company) ;
  • Ki, H.C. (Applied Technology Research Team, Hyndai Rotem Company) ;
  • Byun, S.J. (CFD Research Team, Exa Korea) ;
  • Rho, J.H. (Applied Technology Research Team, Hyndai Rotem Company)
  • 김준형 (현대로템 응용기술연구팀) ;
  • 기호철 (현대로템 응용기술연구팀) ;
  • 변성준 (엑사 코리아 CFD연구팀) ;
  • 노주현 (현대로템 응용기술연구팀)
  • Received : 2017.01.19
  • Accepted : 2017.02.22
  • Published : 2017.03.31
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Abstract

The aerodynamic noise reduction of railway traction motor is required to satisfy new enhanced Korean noise regulations for a train. This paper is the study result on a noise reduction of a railway traction motor using Lattice Boltzmann Method(LBM). To verify the reliability of numerical analysis, the noise performance of the base model evaluated using LBM, and calculated result was compared with the experimental data. In addition, main noise sources were selected to design parameters through analyzing the flow field of the base model. Based on the noise sources analysis result, a design improvement model of traction motor for this study was derived to reduce the noise. The performance of a design improvement model was evaluated by applying a validated numerical scheme. As a result, it was confirmed that the noise was reduced due to the suppression of the internal turbulent flow components.

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References

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