Research on Rounded Flowing States of Obstructed Buoyant Jet

HUAI Wen-xin; FANG Shen-guang

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HUAI Wen-xin, FANG Shen-guang. Research on Rounded Flowing States of Obstructed Buoyant Jet[J]. Applied Mathematics and Mechanics, 2006, 27(8): 987-993.

Citation:

HUAI Wen-xin, FANG Shen-guang. Research on Rounded Flowing States of Obstructed Buoyant Jet[J]. Applied Mathematics and Mechanics, 2006, 27(8): 987-993.

Citation:

HUAI Wen-xin, FANG Shen-guang. Research on Rounded Flowing States of Obstructed Buoyant Jet[J]. Applied Mathematics and Mechanics, 2006, 27(8): 987-993.

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Research on Rounded Flowing States of Obstructed Buoyant Jet

HUAI Wen-xin¹,
FANG Shen-guang²

1.
State Key Laboratory of Water Resources and Hydropower Engineering Science, Wuhan University, Wuhan 430072, P. R. China;

Received Date: 2005-04-02
Rev Recd Date: 2006-05-12
Publish Date: 2006-08-15

Abstract

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,were 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 were 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 was presented to distinguish rounded flowing types.The occurring of reverberated or bifurcated flowing in abnormal rounded flow was 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.
- obstructed buoyant jets,
- round jets,
- numerical simulation,
- rounded flowing pattern,
- dilution

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References(17)

References

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