Endwall Heat Transfer Measurements of an Outlet Guide Vane at on and off Design Conditions
Paper i proceeding, 2013

The endwall heat transfer characteristics of forced flow past outlet guide vanes (OGVs) in a linear cascade have been investigated by using a liquid crystal thermography (LCT) method. The Reynolds number is kept at 250,000 and both on-and off design conditions are tested. For the on-design condition where the incidence angle of OGVs is 30°, no obvious flow separation phenomenon was observed; on the contrary, for the off-design conditions where the incidence angle of OGVs is 0° and -31°, respectively, remarkable flow separation was noticed. The results indicate that the incidence angle of OGVs has a significant effect on the endwall heat transfer. In general, the endwall heat transfer coefficients for the off-design conditions are higher than the corresponding on-design condition. In addition, a preliminary CFD analysis was performed and presented. Basically, the results are consistent with the experiments but further investigations are needed in the future work.

Författare

Lei Wang

Lunds universitet

Per Fahlén

Lunds universitet

Valery Chernoray

Chalmers, Tillämpad mekanik, Strömningslära

Hans Abrahamsson

GKN Aerospace

ASME Turbo Expo 2013: Turbine Technical Conference and Exposition, GT 2013; San Antonio, Tx; United States; 3 June 2013 through 7 June 2013

Vol. 3C 1-8

Drivkrafter

Hållbar utveckling

Styrkeområden

Transport

Energi

Fundament

Grundläggande vetenskaper

Ämneskategorier

Strömningsmekanik och akustik

DOI

10.1115/GT2013-95008

ISBN

978-079185516-4