DETERMINING OF HYDRODYNAMIC PARAMETERS FOR SEPARATOR WITH DIVIDING HYDROSURFACE

Details

Parent Category: Geo-Technical Mechanics, 2015

Category: Geo-Technical Mechanics, 2015, Issue 120

UDC622.767.553:622.75/.77:532.5

Authors:

PolulyakhA.D., D. Sc. (Tech), professor

Sokur A.K., Doctoral student

(State HEI «National Mining University»)

Lapshin Ye.S., D. Sc. (Tech.), Principal Researcher

(IGTM NAS of Ukraine)

Abstract:

The paper represents results on determining hydrodynamic and geometric parameters of the two-layer jet, which are needed for analyzing process of solid material particles moving in the jet.

Shifting processes of the jets moving with different velocities (velocity of the lower jet is greater than velocity of the upper jet) and formation of a two-layer jet after the jets mixing are considered on the basis of a theory of turbulent jets and model of the frictionless liquid. Main zones of shifting are considered: an initial zone where velocity profile in the form of the Shlihting profile is used for some parameters of the shifting, and a main zone where a semiempirical method is used for determining these parameters.

On the grounds of the obtained equations the dependences between length of the mixing range and kinematic characteristics of jets are obtained.

Keywords:

hydrodynamic jets, mixing ranges, two-layer jet, parameters, turbulence.

References:

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About the authors:

Polulyakh Aleksandr Danilovich, Doctor of Technical Sciences (D.Sc.), Professor, Professor of Mineral Dressing Department, State Higher Educational Institution “National Mining University” (State HEI “NMU”), Dnepropetrovsk, Ukraine.

Sokur Anna Konstantinovna, Doctoral Student of Mineral Dressing Department, State Higher Educational Institution “National Mining University” (State HEI “NMU”), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it. .

Lapshin Yevgeniy Semenovich, Doctor of Technical Sciences (D.Sc), Senior Researcher, Principal Researcher, M.S. Polyakov Institute of Geotechnical Mechanics under the National Academy of Sciences of Ukraine (IGTM, NASU), Dnepropetrovsk, Ukraine, This email address is being protected from spambots. You need JavaScript enabled to view it.

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