Numerical and experimental investigations of unsteay 3-D Wet-steam flows through two-stage stator-rotor cascade channels

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

Research output: Chapter in Book/Report/Conference proceedingConference contribution

23 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 and experimentally investigated assuming dry and wet-steam conditions. The fundamental equations for condensate flows derived by the authors are applied to the present flow computations. 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. The pipelined LU-SGS scheme optimized for the parallel-implicit time-integration is also employed. MHI measured the 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. The calculated results are compared with the experimental results. In addition, unsteady condensate mass fractions are numerically visualized and the influence of wakes and secondary vortices to the condensation is discussed.

Original languageEnglish
Title of host publicationASME Turbo Expo 2010
Subtitle of host publicationPower for Land, Sea, and Air, GT 2010
Pages2257-2265
Number of pages9
EditionPARTS A, B, AND C
DOIs
Publication statusPublished - 2010 Dec 1
EventASME Turbo Expo 2010: Power for Land, Sea, and Air, GT 2010 - Glasgow, United Kingdom
Duration: 2010 Jun 142010 Jun 18

Publication series

NameProceedings of the ASME Turbo Expo
NumberPARTS A, B, AND C
Volume7

Other

OtherASME Turbo Expo 2010: Power for Land, Sea, and Air, GT 2010
CountryUnited Kingdom
CityGlasgow
Period10/6/1410/6/18

ASJC Scopus subject areas

  • Engineering(all)

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    Yamamoto, S., Sasao, Y., Kato, H., Satsuki, H., Ooyama, H., & Ishizaka, K. (2010). Numerical and experimental investigations of unsteay 3-D Wet-steam flows through two-stage stator-rotor cascade channels. In ASME Turbo Expo 2010: Power for Land, Sea, and Air, GT 2010 (PARTS A, B, AND C ed., pp. 2257-2265). (Proceedings of the ASME Turbo Expo; Vol. 7, No. PARTS A, B, AND C). https://doi.org/10.1115/GT2010-22796