The Characteristics of Air Flow at Branching and Joining Point of Rectangular Duct

DOI

Bibliographic Information

Other Title
  • 実験用送風機による実験 (その1)
  • 直角分岐管の分流および合流抵抗に関する研究

Description

This paper deals with the results of tests made on the divided and confluent flow at the branch part of the special type tee fitting for a rectangular air duct. As the results of experiments, the empirical formurae for the coefficient of resistance in the confined two streams in the rectangular air duct have been obtained.<BR>(1) Loss in the divided flow at the branch part.<BR>upside type fitting P=0.9Hm+1/3Hb flank type fitting P=1.5Hm-0.79√Hb·Hm+0.11 Hb<BR>(2) Loss in the confluent flow at the branch part.<BR>upside type fitting P=-0.6Hm+1.4Hb flank type fitting P=-0.4Hm+1.0Hb<BR>Where<BR>P=pressure loss, mm WG<BR>Hm=velocity head in the main duct, mm WG<BR>Hb=velocity head in the branch duct, mm WG<BR>b=breadth of the main duct, mm

Journal

  • Journal of Zosen Kiokai

    Journal of Zosen Kiokai 1965 (117), 310-315, 1965

    The Japan Society of Naval Architects and Ocean Engineers

Details 詳細情報について

  • CRID
    1390001205355647360
  • NII Article ID
    130003888837
  • DOI
    10.2534/jjasnaoe1952.1965.310
  • ISSN
    18842062
  • Data Source
    • JaLC
    • Crossref
    • CiNii Articles
  • Abstract License Flag
    Disallowed

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