Secondary flow and forced convection heat transfer near endwall boundary layer fences in a 90° turning duct

Cengiz Camci, Dean H. Rizzo

Research output: Contribution to journalArticle

22 Citations (Scopus)

Abstract

The present study deals with the secondary flow and heat transfer aspects of endwall boundary layer fences in 90° turning ducts. Boundary layer fences have recently been re-introduced as additional components to achieve favorable aerothermal effects in turbine/compressor passages and internal cooling systems. The turbine passage or internal coolant channel is simulated by a 90° turning duct (ReD = 360,000) to study the aerothermal interaction of the boundary layer fence and the passage flow that is dominated by the passage vortices. Specifically, a single boundary layer fence of varying dimensions is attached to a heated endwall of the duct. The current study adds to the currently small number of investigations on the use of endwall boundary layer fences and their aerothermal interaction with the passage flow system.

Original languageEnglish (US)
Pages (from-to)831-843
Number of pages13
JournalInternational Journal of Heat and Mass Transfer
Volume45
Issue number4
DOIs
StatePublished - Dec 18 2001

Fingerprint

fences
Fences
secondary flow
forced convection
Secondary flow
Forced convection
ducts
Ducts
boundary layers
Boundary layers
convection
heat transfer
Heat transfer
turbines
Turbines
cooling systems
coolants
compressors
Cooling systems
Coolants

All Science Journal Classification (ASJC) codes

  • Condensed Matter Physics
  • Mechanical Engineering
  • Fluid Flow and Transfer Processes

Cite this

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abstract = "The present study deals with the secondary flow and heat transfer aspects of endwall boundary layer fences in 90° turning ducts. Boundary layer fences have recently been re-introduced as additional components to achieve favorable aerothermal effects in turbine/compressor passages and internal cooling systems. The turbine passage or internal coolant channel is simulated by a 90° turning duct (ReD = 360,000) to study the aerothermal interaction of the boundary layer fence and the passage flow that is dominated by the passage vortices. Specifically, a single boundary layer fence of varying dimensions is attached to a heated endwall of the duct. The current study adds to the currently small number of investigations on the use of endwall boundary layer fences and their aerothermal interaction with the passage flow system.",
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Secondary flow and forced convection heat transfer near endwall boundary layer fences in a 90° turning duct. / Camci, Cengiz; Rizzo, Dean H.

In: International Journal of Heat and Mass Transfer, Vol. 45, No. 4, 18.12.2001, p. 831-843.

Research output: Contribution to journalArticle

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