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Submit scientific paper, scientific publications, International Research Journal | Meždunarodnyj naučno-issledovatel’skij žurnal

ISSN 2227-6017 (ONLINE), ISSN 2303-9868 (PRINT), DOI: 10.18454/IRJ.2227-6017
ПИ № ФС 77 - 51217

DISCRETE MODEL OF THE TRANSPORT OF SUSPENDED MATTER IN THE COASTAL ZONE OF SHALLOW WATER AREAS

Posted in 2016, Issue November 2016, PHYSICS AND MATHEMATICS | 0 comments

The work is devoted to mathematical modeling of transport processes of substances in shallow waters. The article presents a discrete model of the transport of suspended matter in the coastal zone of shallow reservoirs, to build a where used grid method. For approximation tasks in a temporary variable splitting method applied to one-dimensional two-dimensional problem, which reduces the calculation time for the numerical tasks. In the approximation tasks of lifting, transport and deposition of suspended matter on the spatial variables taken into account, the occupancy of the cells, which increases the accuracy of the solution if the computational domain has complex geometry. The results of mathematical and numerical modelling can be applied in practice for the prediction of the formation of the bottom topography, in particular, prediction of sediment transport.

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ON ONE PARTICULAR SOLUTION OF THE PROBLEM OF SPATIAL HYPERSONIC FLOW PAST A VARIABLE FORM THIN WING

Posted in 2017, Issue № 1(55) January 2017, PHYSICS AND MATHEMATICS | 0 comments

The work is dedicated to the further study of the hypersonic gas flow past a thin wing problem. The wing shape depends on the time. The resulting head shock wave is attached to the front edge of the wing, at least at one point. The solution is constructed using the thin shock layer method.. In determining the first order corrections two equations resulting system can be integrated independently of the others. Introduction of a new function and application of the Euler-Ampere transformation allows us to build a solution that depends on two arbitrary functions and unknown forms the front of the head shock wave. To determine these functions obtained integro-differential system of equations. In this paper we present one of variants of the semi-inverse method of constructing a solution in which a type of one of arbitrary functions is given. The shape of the streamlined body is defined in the process of constructing the solution of the problem. A particular solution of integro-differential equations of the system is built, The formulas for determining the shape of the shock front, the body surface, the distance between the shock wave and the body surface, the flow parameters on the wing surface were obtained.

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APPLICATION OF PROFICY TROUBLESHOOTER SOFTWARE COMPLEX FOR RELATIONSHIP ESTABLISHING BETWEEN INPUT AND OUTPUT VARIABLES OF THE FIRING NICKEL CONCENTRATE IN THE FLUIDIZED LAYER FURNACE

Posted in 2016, Issue December 2016, PHYSICS AND MATHEMATICS | 0 comments

In this article, with the help of software Proficy Troubleshooter product, was analyzed nickel concentrate firing process in the fluidized layer furnace. Archive statistical data was analyzed Based on production data was examined relationship between the effect of loading the cake in an oven and a temperature of cinder. The main quality parameters depending on firing in fluidized layer furnaces were identified. The parameters influencing the roasting process were identified. It proposed the use of temperature of the fluidized bed calcine to calculate the flow rate.

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METHOD 3D DESIGNS OF PROCESS OF MIXING OF NEWTONIAN LIQUIDS IN TUBULAR CHANNELS OF THE DIFFUSER-CONFUSER TYPE

Posted in 2016, Issue December 2016, PHYSICS AND MATHEMATICS | 0 comments

To the article results are driven 3D designs and numeral experiments of processes of mixing of streams of newtonian liquids in tubular channels diffuser – confuser type. The models of similar task of specialists of this area are studied on an example 2d models for a tubular channel diffuser – confuser type, a design of that was base on development, forming and numeral experiments 2d models. The lacks of this method of design are shown and reasonable. The author of the article for the decision of task is offer forming 3d models. As an instrument for realization of decision the set problem a programmatic complex “Fluent” is offered.

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THE HAWKING’S HYPOTHESIS ABOUT EUCLIDEAN STRUCTURE OF SPACE-TIME IN CLASSICAL PHYSICS

Posted in 2016, Issue December 2016, PHYSICS AND MATHEMATICS | 0 comments

In connection with current problems of General relativity, gravitation, and cosmology the hypothesis of Hawking about of Euclidean nature of space-time is analyzed. It is shown that in the classical theory this hypothesis leads naturally to the dark matter existence and to the polymetric space-time theories. It is pointed out that the hypothesis under consideration does not contradict to the gravitation waves existence. It is pointed out also that the Newtonian approximation is realized by the usual manner.

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QUANTUM ELETRICAL PHENOMENA AT LOW TEMPERATURES

Posted in 2016, Issue November 2016, PHYSICS AND MATHEMATICS | 0 comments

Quantum mechanism of interlayer polarization in layered crystals in alternating electric field in the limits of low temperatures is studied. Unbalanced density matrix is calculated for the ensemble of noninteracting protons, moving in one-dimension multipit potential image of rectangular shape disturbed by variable polarizing field. Results of quantum-mechanical investigation of migratory polarization may be used in the study of tunnel mechanism of spontaneous polarization of ferrielectrics (KDP, DKDP).

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