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EFFECT OF FREE STREAM TURBULENCE ON FLAT PLATE HEAT TRANSFER.

Author(s) : SUGAWARA S.

Type of article: Article

Summary

THE EFFECT OF FREE STREAM TURBULENCE ON SURFACE HEAT TRANSFER WAS INVESTIGATED FOR A SMOOTH FLAT PLATE. THE FREE STREAM TURBULENCE WAS INTRODUCED BY A TURBULENCE GRID. TURBULENCE INTENSITY WAS MEASURED WITH A HOT-WIRE ANEMOMETER. UNDER THE SAME CONDITIONS, THE LOCAL HEAT TRANSFER COEFFICIENT, MEASURED USING AN UNSTEADY METHOD, WAS FOUND TO INCREASE WITH INCREASING TURBULENCE LEVEL, RAPIDLY IN THE RANGE OF SMALL TURBULENCE LEVEL AND SLOWLY IN THE HIGH RANGE. AT A TURBULENCE LEVEL OF 7-8%, THE COEFFICIENT LEVEL OFF TO A VALUE ABOUT 55% HIGHER THAN THAT OBTAINED FOR VERY SMALL FREE STREAM TURBULENCE.

Details

  • Original title: EFFECT OF FREE STREAM TURBULENCE ON FLAT PLATE HEAT TRANSFER.
  • Record ID : 1988-2230
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 31 - n. 1
  • Publication date: 1988

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