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FRICTION FACTOR PREDICTION FOR FULLY DEVELOPED LAMINAR TWISTED-TAPE FLOW.

Author(s) : DU PLESSIS J. P., KROGER D. G.

Type of article: Article

Summary

FRICTION FACTOR CHARACTERISTICS ARE NECESSARY FOR THE EVALUATION OF THE EFFICIENCY OF HEAT TRANSFER ENHANCEMENT BY MEANS OF A TWISTED-TAPE INSERT IN A SMOOTH TUBE. A UTILITY CHART FROM WHICH THE FRICTION FACTOR-REYNOLDS NUMBER PRODUCT FOR TWISTED-TAPE FLOW MAY BE PREDICTED, IS PRESENTED IN GRAPHICAL FORM. RESULTS FROM A PARAMETRIC STUDY ON LAMINAR, CONSTANT PROPERTY TWISTED-TAPE FLOW ARE PROVIDED AND ALSO PRESENTED GRAPHICALLY. THESE RESULTS ARE USED TO CONSTRUCT A CORRELATIVE EXPRESSION FROM WHICH FRICTION FACTOR CHARACTERISTICS FOR LAMINAR FLOW MAY BE OBTAINED. THE FINITE THICKNESS OF THE TAPE IS TAKEN INTO CONSIDERATION.

Details

  • Original title: FRICTION FACTOR PREDICTION FOR FULLY DEVELOPED LAMINAR TWISTED-TAPE FLOW.
  • Record ID : 1985-1007
  • Languages: English
  • Source: International Journal of Heat and Mass Transfer - vol. 27 - n. 11
  • Publication date: 1984

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