Applied Mathematics and Mechanics

, Volume 27, Issue 8, pp 1133–1139 | Cite as

Rounded flowing states of obstructed buoyant jet

  • Huai Wen-xin  (槐文信)
  • Fang Shen-guang  (方神光)
Article
Received:
Revised:

Abstract

The mutual relationships of three effective factors, the diameter D/d (d is the diameter of exit) of obstructed plate, exit densimetric Froude number and the distance H/d of the plate from jet orifice for obstructed buoyant jet in static ambient, are analyzed to explain normal and abnormal rounded flowing (reverberated and bifurcated flowing). The critical Froude numbers for obstructed buoyant jets with H/d=2, 4, 6, 8 which distinguished normal and abnormal flowing pattern are obtained. Normal rounded flowing is found only for a plate under a special value of H/d. A fitted formula of critical Froude numbers with H/d and D/d is presented to distinguish rounded flow is analyzed. Based on the results of obstructed buoyant jets with D/d=1, normal rounded flowing occurred only for all conditions and axial dilution behind the plate under different H/D is obtained.

Key words

obstructed buoyant jets round jets numerical simulation rounded flowing pattern dilution 

Chinese Library Classification

O358 

2000 Mathematics Subject Classification

76D25 
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Copyright information

© Editorial Committee of Appl. Math. Mech. 2006

Authors and Affiliations

  • Huai Wen-xin  (槐文信)
    • 1
  • Fang Shen-guang  (方神光)
    • 2
  1. 1.State Key Laboratory of Water Resources and Hydropower Engineering ScienceWuhan UniversityWuhanP. R. China
  2. 2.Department of Hydraulic EngineeringTsinghua UniversityBeijingP. R. China

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