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DIMENSIONLESS HEAT AND MASS TRANSFER COEFFICIENTS FOR FORCED CONVECTION AROUND A SPHERE: A GENERAL LOW REYNOLDS NUMBER CORRELATION.

Author(s) : BRUNN P. O., ISEMIN D.

Type of article: Article

Summary

THE AVERAGE NUSSELT NUMBER (N) FOR HEAT AND MASS TRANSFER FROM A SPHERE IS OBTAINED AS A FUNCTION OF THE PECLET NUMBER (P). THE DERIVATION CONSIDERS IN DETAIL THE HIGH PECLET NUMBER RANGE, WHERE THE FRIEDLANDER APPROXIMATION MIGHT BE EMPLOYED. THE WELL-KNOWN N-P RELATION FOR BUBBLES ALLOWS THE AUTHORS TO EXPLICITLY OBTAIN A RATHER SIMPLE EXPRESSION. THE MAXIMUM ERROR INVOLVED IN USING SUCH A SIMPLE FORMULAIS ESTIMATED TO BE 6%.

Details

  • Original title: DIMENSIONLESS HEAT AND MASS TRANSFER COEFFICIENTS FOR FORCED CONVECTION AROUND A SPHERE: A GENERAL LOW REYNOLDS NUMBER CORRELATION.
  • Record ID : 1985-2330
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 27 - n. 12
  • Publication date: 1984

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