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Vortices: tools to influence heat transfer. Recent developments.

Author(s) : FIEBIG M.

Summary

Vortices and their generation contain three passive elements to influence heat transfer: swirl, flow destabilization and developing viscous layers. They increase heat transfer by several hundred percent. The heat transfer mechanisms associated with longitudinal and transverse vortex generators are discussed in detail. Both can give substantial heat transfer enhancement at Re as low as 300. Implementations of vortex generators into heat transfer surfaces are reviewed with emphasis on laminar channel flow with ribs, winglets, corrugations and "hutzen". The aim of the paper is to assess the state of the art.

Details

  • Original title: Vortices: tools to influence heat transfer. Recent developments.
  • Record ID : 1997-0723
  • Languages: English
  • Source: Proceedings of the 2nd European Thermal-Sciences (EUROTHERM) and 14th UIT National Heat Transfer Conference 1996.
  • Publication date: 1996/05/29
  • Document available for consultation in the library of the IIR headquarters only.

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