LES for turbines: Methodologies, cost and future outlooks

James Tyacke, Paul G. Tucker, Richard Jefferson-Loveday, Nagabushana Rao Vadlamani, Robert Watson, Iftekhar Naqavi, Xiaoyu Yang

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

11 Citations (Scopus)

Abstract

Flows throughout different zones of turbines have been investigated using Large Eddy Simulation (LES) and hybrid Reynolds-Averaged Navier-Stokes-LES (RANS-LES) methods and contrasted with RANS modelling, more typically used in the design environment. Cases studied include low and highpressure turbine cascades, real surface roughness effects, internal cooling ducts, trailing edge cut-backs and labyrinth and rim seals. Evidence is presented that shows that LES and hybrid RANS-LES produces higher quality data than RANS/URANS for a wide range of flows. The higher level of physics that is resolved allows greater flow physics insight which is valuable for improving designs and refining lower order models. Turbine zones are categorised by flow type, to assist in choosing the appropriate eddy resolving method and to estimate computational cost.

Original languageEnglish
Title of host publicationASME Turbo Expo 2013
Subtitle of host publicationTurbine Technical Conference and Exposition, GT 2013
Volume6 B
DOIs
Publication statusPublished - 17 Dec 2013
Externally publishedYes
EventASME Turbo Expo 2013: Turbine Technical Conference and Exposition, GT 2013 - San Antonio, Tx, United States
Duration: 03 Jun 201307 Jun 2013

Conference

ConferenceASME Turbo Expo 2013: Turbine Technical Conference and Exposition, GT 2013
CountryUnited States
CitySan Antonio, Tx
Period03/06/201307/06/2013

ASJC Scopus subject areas

  • Engineering(all)

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  • Cite this

    Tyacke, J., Tucker, P. G., Jefferson-Loveday, R., Vadlamani, N. R., Watson, R., Naqavi, I., & Yang, X. (2013). LES for turbines: Methodologies, cost and future outlooks. In ASME Turbo Expo 2013: Turbine Technical Conference and Exposition, GT 2013 (Vol. 6 B). [GT2013-94416] https://doi.org/10.1115/GT2013-94416