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 language | English |
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Publication status | Published - 2009 |
Event | 9th International Conference on Power Engineering, ICOPE 2009 - Kobe, Japan Duration: 2009 Nov 16 → 2009 Nov 20 |
Other
Other | 9th International Conference on Power Engineering, ICOPE 2009 |
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Country/Territory | Japan |
City | Kobe |
Period | 09/11/16 → 09/11/20 |
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