Numerical and experimental investigations of unsteady 3-D flow through two-stage cascades in steam turbine model

Yasuhiro Sasao, Hiroto Kato, Satoru Yamamoto, Hiroshi Satsuki, Hiroharu Ooyama, Kouichi Ishizaka

Research output: Contribution to conferencePaperpeer-review

3 Citations (Scopus)

Abstract

Unsteady 3-D flows through two-stage stator-rotor cascade channels in a low-pressure steam turbine model developed by Mitsubishi Heavy Industry(MHI) are numerically investigated and compared with the experiments. The fundamental equations solved in this study are based on the compressible Navier-Stokes equation and the SST turbulence model in general curvilinear coordinates. The high-order high-resolution finite-difference method based on the fourth-order compact MUSCL TVD(Compact MUSCL) scheme and the Roe's approximate Riemann solver are used for the space discretization of convection terms. A parallelized LU-SGS scheme based on the pipelining algorithm is also employed for the parallel-implicit time-integration. Total pressures, static pressures and yaw angles of flow velocity vectors at the outlet of first-stage rotor, second-stage stator, and second-stage rotor obtained from the computation are compared with the corresponding experiments. Finally the reliability of both numerical and experimental approaches is discussed.

Original languageEnglish
Publication statusPublished - 2009
Event9th International Conference on Power Engineering, ICOPE 2009 - Kobe, Japan
Duration: 2009 Nov 162009 Nov 20

Other

Other9th International Conference on Power Engineering, ICOPE 2009
Country/TerritoryJapan
CityKobe
Period09/11/1609/11/20

Keywords

  • Numerical and experimental investigations
  • Steam turbine model
  • Two-stage stator-rotor cascades

ASJC Scopus subject areas

  • Electrical and Electronic Engineering
  • Energy Engineering and Power Technology
  • Fuel Technology

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