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NUMERICAL PREDICTION OF FLUID FLOW AND HEAT TRANSFER IN A CIRCULAR TUBE WITH LONGITUDINAL FINS INTERRUPTED IN THE STREAMWISE DIRECTION.

Author(s) : KELKAR K. M., PATANKAR S. V.

Type of article: Article

Summary

NUMERICAL CALCULATIONS HAVE BEEN MADE FOR THE PERFORMANCE PREDICTION OF LAMINAR FLOW THROUGH CIRCULAR TUBES WITH LONGITUDINAL FINS INTERRUPTED IN THE STREAMWISEDIRECTION BY ARRANGING THEM EITHER IN A STRAGGERED OR AN IN-LINE MANNER. THE FLOW EXHIBITS PERIODICALLY REPEATING BEHAVIOUR AFTER SOME INITIAL DEVELOPMENT LENGTH. RESULTS INDICATE THAT IN THE PERIODIC FULLY DEVELOPED REGIME, FOR A PRANDTL NUMBER OF 0.7, A TUBE WITH STAGGERED ARRANGEMENT OF FINS PRODUCES LESS HEAT TRANSFER ENHANCEMENT THAN A TUBE WITH CONTINUOUS FINS. A TUBE WITH IN-LINE ARRANGEMENT OF FINS GIVES ABOUT AS MUCH HEAT TRANSFER AUGMENTATION AS THE TUBES WITH EITHER CONTINUOUS OR STAGGERED FINS BUT WITH A MUCH LESS PRESSURE DROP PENALTY.

Details

  • Original title: NUMERICAL PREDICTION OF FLUID FLOW AND HEAT TRANSFER IN A CIRCULAR TUBE WITH LONGITUDINAL FINS INTERRUPTED IN THE STREAMWISE DIRECTION.
  • Record ID : 1991-0605
  • Languages: English
  • Source: J. Heat Transf. - vol. 112 - n. 2
  • Publication date: 1990
  • Document available for consultation in the library of the IIR headquarters only.

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