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Calculation of the characteristics of countercurrent axisymmetric jets

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Abstract

On the basis of analysis and generalization of experimental data, a method is proposed for calculating the parameters of the interaction of two coaxial jets flowing in opposite directions from circular nozzles of different diameters.

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Abbreviations

d, D:

diameter of the nozzles for the small- and large-diameter jets

ρ:

density

x, y:

coordinates

u, U:

averaged longitudinal component of velocity of the small- and large-diameter jets

Lax :

distance between nozzles

q:

relative impulse

G:

mass rate of the medium

2r:

width of the jet

i, Li :

lengths of the flow zones of the small- and large-diameter jets, where i=1, 2

ℓ:

range of the jet

2B:

distance between corresponding points of lines of maximum velocity of the large-diameter jet

0:

initial state

m:

maximum value

ax:

value on the axis

ℓd:

large-diameter jet

y0.5 :

distance from the axis to the point at which the velocity is equal to half the velocity on the axis

Literature cited

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Additional information

Translated from Inzhenerno-Fizicheskii Zhurnal, Vol. 56, No. 5, pp. 725–729, May, 1989.

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Dvoinishnikov, V.A., Laryushkin, M.A. & Rozhko, A.N. Calculation of the characteristics of countercurrent axisymmetric jets. Journal of Engineering Physics 56, 508–512 (1989). https://doi.org/10.1007/BF01297595

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  • DOI: https://doi.org/10.1007/BF01297595

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