Enhancement of Laminar Boundary Layer Heat Transfer by a Vortex Generator

• YANAGIHARA Jurandir Itizo

• TORII Kahoru

抄録

The enhancement of heat transfer caused by the presence of a single vortex generator in a laminar boundary layer was experimentally investigated. The local heat transfer coefficients just downstream of the vortex generator and the mean and fluctuation components of velocity were measured. A substantial increase in the heat transfer was noted, with a maximum improvement of the heat transfer coefficient of 80%, even in regions where the laminar structure was clearly predominant. It was observed that the heat transfer coefficient presented two peaks in the spanwise direction. These peaks were found to be associated with the downward motion of the mean vortex and the corner vortex, which arose in the generator's front corner. The influence of the height, angle of attack and geometry of the vortex generator on heat transfer was also investigated.

収録刊行物

• JSME international journal. Ser. 2, Fluids engineering, heat transfer, power, combustion, thermophysical properties

  JSME international journal. Ser. 2, Fluids engineering, heat transfer, power, combustion, thermophysical properties 35 (3), 400-405, 1992

  一般社団法人 日本機械学会

キーワード

• Boundary Layer
• Heat Transfer Enhancement
• Longitudinal Vortices
• Three-Dimensional Flow
• Vortex Generator
• Heat Transfer Measurements

詳細情報

• CRID: 1390282680401837312
• NII論文ID: 110002492653
• NII書誌ID: AA10680596
• DOI: 10.1299/jsmeb1988.35.3_400
• ISSN: 09148817
• ISSN: http://id.crossref.org/issn/09148817
• Web Site: https://www.jstage.jst.go.jp/article/jsmeb1988/35/3/35_3_400/_pdf
• 本文言語コード: en
• データソース種別:
  • JaLC
  • Crossref
  • CiNii Articles
• 抄録ライセンスフラグ: 使用不可