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Experimental Study of Endwall Heat Transfer in a Linear Cascade

In English

Författare

  • Lei Wang
  • Bengt Sundén
  • Valery Chernoray
  • Hans Abrahamsson

Summary, in English

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. Due to the special design of an OGV profile, the focus of this study is emphasized on the heat transfer patterns around the leading part of a vane. The Reynolds number is kept constant at 260,000. Two attack angles of the vane are considered. For alpha = 0 degrees, the vane obstructs the incident flow like a bluff body and a remarkable flow separation phenomenon was noticed. For alpha = 30 degrees, the vane is more "streamlined" with respect to the incoming flow and no obvious flow separation was observed. In general, the endwall heat transfer for alpha = 0 degrees is higher than that for alpha = 30 degrees.

Avdelning/ar

Publiceringsår

2012

Språk

Engelska

Sidor

012028-012028

Publikation/Tidskrift/Serie

Journal of Physics: Conference Series

Volym

395

Dokumenttyp

Konferensbidrag

Förlag

IOP Publishing

Ämne

  • Energy Engineering

Conference name

6th European Thermal Sciences Conference (Eurotherm)

Conference date

2012-09-04 - 2012-09-07

Conference place

Poitiers, France

Status

Published

ISBN/ISSN/Övrigt

  • ISSN: 1742-6588
  • ISSN: 1742-6596