Numerical prediction of unsteady flows through turbine stator-rotor channels with condensation

Yasuhiro Sasao, Satoru Yamamoto

研究成果: 書籍の章/レポート/Proceedings会議への寄与査読

3 被引用数 (Scopus)

抄録

Unsteady transonic flows with condensation through steam turbine stator-rotor channels are numerically predicted by using the numerical method developed by our group. Fundamental equations solved here consist of conservation laws of mixed gas, water vapor, water liquid, and the number density of water droplets, coupled with the momentum equations and the energy equation. Also the shear-stress transport (SST) turbulence model is employed to predict the turbulent quantities. The numerical method is based on the high-order high-resolution finite-difference method. The fourth-order monotone upstream-centered schemes for conservation laws (MUSCL) with the total variation diminishing (TVD) scheme, Roe's approximate Riemann solver, and the lower-upper symmetric Gauss-Seidel (LU-SGS) scheme are employed in the numerical method. As numerical examples, transonic condensate flows of moist air through a turbine and a compressor cascade channel are first calculated. Also wet-steam turbine stator-rotor cascade channels are calculated assuming homogeneous and heterogeneous condensations.

本文言語英語
ホスト出版物のタイトルProceedings of ASME Fluids Engineering Division Summer Conference, 2005 Symposia, FEDSM2005
ページ855-861
ページ数7
出版ステータス出版済み - 2005
イベント2005 ASME Fluids Engineering Division Summer Conference - Houston, TX, 米国
継続期間: 2005 6月 192005 6月 23

出版物シリーズ

名前Proceedings of the American Society of Mechanical Engineers Fluids Engineering Division Summer Conference
1 PART A

会議

会議2005 ASME Fluids Engineering Division Summer Conference
国/地域米国
CityHouston, TX
Period05/6/1905/6/23

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