Механика одинокой сферы при воздействии потоком жидкости

Authors

  • Б. Х. Драганов
  • А. А. Вергезова

Abstract

UDC 532 (075.8)

Mechanics of Lonely area AT fluid flow

B. Draganov, A. Verhezova

 

The object of study is divided into two areas: a large (outer) and lower (inner). Between the two areas is water and air, which are get there through three-way valves. The design of these caps will provide the required amount of liquid oxygen and to maintain the internal sphere afloat and the optimum level of oxygen for human life. The device will be made of a durable, transparent, thin material that can withstand high values of external load.

Objective studies - to determine forces acting on the solitary sphere (large size or in the form of dispersed particles) in the fluid stream bathing the body.

Sea waves, lay on the surface of the Earth should be viewed as a stream of varying intensity, characterized by the instability associated with the fluctuations of various kinds. This flow should be considered as a heterogeneous environment consisting of mixtures of dispersed droplets of liquid and solid particles.

The influence of rotation on the scope of the force exerted on it by the streamlined flow is shown by the combined action of viscous and inertial forces. The analysis in the framework of an ideal liquid rotating streamlined the scope can not be passed without a carrier fluid viscosity, and in the analysis under the creeping (Stokes) flows impact rotation force is not shown in full is not taken into account inertial effects.

In order to identify the influence of rotation on the power away from the sphere into account nonlinear inertial terms.

Conclusions

Experimental study of the mechanics of single sphere at a flow of the fluid flow is a challenge. Mathematical modeling allows you to reliably determine the forces acting on the scope and the speed of its movement.

References

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Нигматулин Р. ?. Динамика многофазных сред. Ч. 1. / Р. ?. Нигматуллин. – М. : Наука, 1987. – 464 с.

Долинский А. А. Гидродинамика техногенних выбросов в окружающую среду : монография / А. А. Долинский, Б. Х. Драганов // К. : ?нститут технической теплофизики НАН Украины, 2015. – 104 с.

Гольдшик М. А. Процессы переноса в зернистом слое / М. А. Гольдшик // Новосибирск : ?ТФ, 1984. – 163 с.

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Published

2017-02-24

Issue

No. 242 (2016)

Section

Статті

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