Comparison of inviscid and viscous transonic flow field in VKI gas turbine blade cascade

S. A. Moshizi*, A. Madadi, M. J. Kermani

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

7 Citations (Scopus)
9 Downloads (Pure)

Abstract

In this paper, the viscous and inviscid flow fields of a gas turbine blade cascade are investigated. A two-dimensional CFD solver is developed to simulate the flow field through VKI blade cascade. A high resolution flux difference splitting scheme of Roe is applied to discretize the convective part of Navier-Stokes equations. Baldwin Lomax (BL) model is used to account for turbulent effects on the viscous flow field of the blade cascade. For validation of the code, the flow field was solved by Ansys Fluent commercial software. The flow solution was done by third order flux difference splitting scheme of Roe and k-ω turbulence model. The findings show that the high turbulent and the shock creation in the flow field, lead to the same results in viscous and inviscid flows. Also, the results show that the grid and solver's focus must be on the precise prediction of the shock effects, when the shock is occurred in the domain.

Original languageEnglish
Pages (from-to)275-280
Number of pages6
JournalAlexandria Engineering Journal
Volume53
Issue number2
DOIs
Publication statusPublished - Jun 2014
Externally publishedYes

Bibliographical note

Copyright the Publisher 2014. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

  • Gas turbine cascade
  • Viscous flow
  • Inviscid flow
  • Turbulent flow
  • Roe scheme
  • Shock creation

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