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A REFUTATION OF KING'S RULE FOR MULTI-DIMENSIONAL EXTERNAL NATURAL CONVECTION.

Author(s) : SPARROW E. M., ANSARI M. A.

Type of article: Article

Summary

EXPERIMENTS ARE CARRIED OUT TO TEST THE VALIDITY OF KING'S RULE FOR EVALUATING A CHARACTERISTIC LENGTH FOR PROBLEMS OF MULTI-DIMENSIONAL EXTERNAL NATURAL CONVECTION AS WELL AS THE LIENHARD RULE. A HEATED VERTICAL CYLINDER OF EQUAL HEIGHT AND DIAMETER WAS USED, WITH HEAT BEING TRANSFERRED FROM TOP, SIDE, AND BOTTOM. THE USE OF KING'S RULE LED TO 40-50% OVERPREDICTIONS. ALTHOUGH LIENHARD'S RULE YIELDED PREDICTIONS THAT WERE SOMEWHAT CLOSER TO THE DATA THE LEVEL OF AGREEMENT DOES NOT APPEAR TO WARRANT ITS ADOPTION.

Details

  • Original title: A REFUTATION OF KING'S RULE FOR MULTI-DIMENSIONAL EXTERNAL NATURAL CONVECTION.
  • Record ID : 1984-0907
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 26 - n. 9
  • Publication date: 1983/09

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