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Experimental study of flow structure and heat transfer under a jet flow past a spherical-cavity obstacle

  • V. I. Terekhov
  • V. L. Barsanov
  • S. V. Kalinina
  • Yu. M. Mshvidobadze
Article

Abstract

The results of an experimental study of the aerodynamic characteristics and heat transfer under a jet flow past a spherical-cavity obstacle are presented. It has been revealed that in a spherical cavity the flow becomes nonstationary and is characterized by low-frequency oscillations of local values of the heat flow density. The heat transfer intensity in a hollow is lower than on a flat obstacle, and in the region of depression this decrease is practically completely compensated by an increase in the heat-transfer surface area.

Keywords

Heat Transfer Heat Transfer Coefficient Spherical Cavity Local Heat Transfer Stagnation Region 
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Copyright information

© Springer Science+Business Media, Inc. 2006

Authors and Affiliations

  • V. I. Terekhov
    • 1
  • V. L. Barsanov
    • 1
  • S. V. Kalinina
    • 1
  • Yu. M. Mshvidobadze
    • 1
  1. 1.S. S. Kutateladze Institute of Thermal PhysicsSiberian Branch of the Russian Academy of SciencesNovosibirskRussia

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