Transactions of the Korean Society for Noise and Vibration Engineering (한국소음진동공학회논문집)

The Korean Society for Noise and Vibration Engineering (한국소음진동공학회)
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Flow-induced Vibration Analysis for Cascades with Stator-rotor Interaction and Viscosity Effect

스테이터-로터 상호간섭 및 점성효과를 고려한 케스케이드의 유체유발 진동해석

  • 오세원 (국립경상대학교 대학원 기계항공공학부) ;
  • 박웅 (두산중공업(주) 기술연구원) ;
  • 김동현 (국립경상대학교 기계항공공학부 및 항공기부품기술연구소)
  • Published : 2006.10.20
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Abstract

In this study, advanced computational analysis system has been developed in order to investigate flow-induced vibration(FIV) phenomenon for general stator-rotor cascade configurations. Relative movement of the rotor with respect to stator is reflected by modeling Independent two computational domains. Fluid domains are modeled using the unstructured grid system with dynamic moving and local deforming methods. Unsteady, Reynolds-averaged Wavier-stokes equations with one equation Spalart-Allmaras and two-equation SST ${\kappa}-{\varepsilon}$ turbulence models are solved for unsteady flow problems and also relative moving and vibration effects of the rotor cascade are fully considered. A coupled implicit time marching scheme based on the Newmark integration method is used for computing the governing equations of fluid-structure interaction problems. Detailed vibration responses for different flow conditions are presented and then vibration characteristics are physically investigated in the time domain as computational virtual tests.

Keywords

References

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