Simulation of unsteady 3-D wet-steam flows through three-stage stator-rotor blade rows with equilibrium and nonequilibrium condensations

Satoshi Miyake, Yasuhiro Sasao, Satoru Yamamoto, Soichiro Tabata, Toshihiro Miyawaki, Hiroharu Ooyama

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

12 Citations (Scopus)

Abstract

Unsteady 3-D wet-steam flows through three-stage statorrotor blade rows in a low-pressure steam turbine model developed by Mitsubishi Heavy Industry (MHI) are numerically investigated. In this study, a new and simple meshing strategy is introduced to improve the prediction of end-wall flows near the shroud and the hub. Dry and wet-steam conditions are taken into account and the calculated results changing the grid system are compared with the experiments. As a practical usage, coarse-grid computations using a PC cluster are also conducted and the results are compared with those using a fine grid and a supercomputer. In addition, a super-cooled condition is assumed and the computation is further conducted. Finally, the effect of homogeneous nucleation and the nonquilibrium condensation on the present flow is evaluated.

Original languageEnglish
Title of host publicationASME Turbo Expo 2012
Subtitle of host publicationTurbine Technical Conference and Exposition, GT 2012
Pages505-513
Number of pages9
DOIs
Publication statusPublished - 2012 Dec 1
EventASME Turbo Expo 2012: Turbine Technical Conference and Exposition, GT 2012 - Copenhagen, Denmark
Duration: 2012 Jun 112012 Jun 15

Publication series

NameProceedings of the ASME Turbo Expo
Volume6

Other

OtherASME Turbo Expo 2012: Turbine Technical Conference and Exposition, GT 2012
CountryDenmark
CityCopenhagen
Period12/6/1112/6/15

ASJC Scopus subject areas

  • Engineering(all)

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