Computational Study of a Two-Passage Turbine Guide-Vane Cascade with End-Wall Contouring

Bin Zhu, Yu Liang Lin, Tom I P Shih, Rohit Oke, Terry W. Simon, Minking Chyu

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

1 Scopus citations

Abstract

CFD simulations based on the ensemble-averaged compressible Navier-Stokes equations, closed by two different turbulence models - the standard k-ε model with wall functions and the two-layer model of Chen and Patel - were performed to guide the design of a two-passage experimental setup, which models a linear cascade by using only three airfoils. Results generated show that the angle of the tailboards can be adjusted to give the same flow rates through the two passages. Results also show that once the flow rates are nearly the same, the pressure distributions become nearly periodic, indicating that the two-passage experimental setup does indeed mimic a linear cascade. The discrepancies between the two-passage experimental setup and a truly periodic linear cascade include the location of the stagnation zone about the airfoil's leading edge and the shape of the pressure distribution in the trailing-edge region.

Original languageEnglish (US)
Title of host publicationProceedings of the ASME Design Engineering Technical Conference
Pages929-938
Number of pages10
Volume1
StatePublished - Dec 1 2001
EventProceedings of the 2001 ASME Design Engineering Technical Conference and Computers and Information in Engineering Conference - Pittsburgh, PA, United States
Duration: Sep 9 2001Sep 12 2001

Other

OtherProceedings of the 2001 ASME Design Engineering Technical Conference and Computers and Information in Engineering Conference
CountryUnited States
CityPittsburgh, PA
Period9/9/019/12/01

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