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FORCED CONVECTIVE HEAT TRANSFER IN THREE-DIMENSIONAL RIB-ROUGHENED TUBES. 1. IN-LINE ARRANGEMENT.

[In Japanese. / En japonais.]

Author(s) : MABUCHI I.

Type of article: Article

Summary

AN INVESTIGATION OF THREE-DIMENSIONAL RIB-ROUGHENED SURFACES WAS UNDERTAKEN TO DETERMINE THE EFFECTS OF RIB SHAPE AND THE NUMBER OF RIBS ON FLOW FRICTION AND HEAT TRANSFER CHARACTERISTICS. ALL RIBS WERE IN THE SHAPE OF A REGULAR TRIANGLE. 4 TYPES OF RIB HEIGHT AND 5 TYPES OF RING HEIGHT WERE TESTED FOR COMPARISON. THEY WERE ARRANGED IN LINE WITH A CONSTANT PITCH ALONG THE FLOW DIRECTION BY VARYING THE PITCH ALONG THE TUBE CIRCUMFERENCE. HIGH-PERFORMANCE WAS GIVEN IN THE CASE OF A SMALL NUMBER OF RIBS IN WHICH THREE DIMENSIONALITY WAS SHOWN IN THE LOCAL HEAT TRANSFER COEFFICIENT DITIIN BY INCREASING THE NUMBER OF RIBS, THE DISTRIBUTION CHANGED INTO TWO DIMENSIONAL AND THESE PERFORMANCES WERE LOWER THAN OR EQUAL TO THAT OF THE RING. (JSME INT. J., JP., 30, N 269, 1987/11, 1862.

Details

  • Original title: [In Japanese. / En japonais.]
  • Record ID : 1988-0934
  • Languages: Japanese
  • Source: Trans. JSME - n. 479
  • Publication date: 1987
  • Document available for consultation in the library of the IIR headquarters only.

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