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Journal of Engineering Physics and Thermophysics

, Volume 92, Issue 6, pp 1509–1516 | Cite as

Vortex Intensification of Heat Transfer in Channels and Pipes with Periodic Elements of Discrete Roughness

  • S. A. IsaevEmail author
  • A. D. Chornyi
  • Yu. V. Zhukova
  • A. A. Vysotskaya
  • V. B. Kharchenko
Article

A complex numerical investigation of vortex intensification of heat transfer in turbulent inhomogeneous medium flow in channels and pipes with periodic elements of discrete roughness has been carried out with the use of multiblock computational technologies, realized in a specialized package VP2/3, and of a modified model of transfer of shear stresses. As roughness elements use was made of asperities and grooves of different geometries, with air and transformer oil used as a working medium. The influence of the geometrical parameters of the indicated channels and pipes as well as of the regime parameters of the flow in them on their thermal and hydraulic efficiency has been analyzed in detail.

Keywords

vortex intensification turbulent flow channels pipes discrete roughness 

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Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2019

Authors and Affiliations

  • S. A. Isaev
    • 1
    Email author
  • A. D. Chornyi
    • 2
  • Yu. V. Zhukova
    • 2
  • A. A. Vysotskaya
    • 1
  • V. B. Kharchenko
    • 1
  1. 1.St. Petersburg State University of Civil AviationSt. PetersburgRussia
  2. 2.A. V. Luikov Heat and Mass Transfer InstituteNational Academy of Sciences of BelarusMinskBelarus

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