2013 1(12)

Back to table of content

   Short abstract

 

Pages:

353 - 358

Language:

RU

Ref.:

4


Click to get extended abstract


Download paper: [RU]

2013_1(12)_63.pdf

 

 

MODELING OF JOINT FLOW OF LIQUID FILM AND TURBULENT GAS AT WEIGHTLESSNESS

Tsvelodub O.Y.1,2, Arkhipov D.G.1

1 Novosibirsk State University, Novosibirsk, Russia
2 Institute of Thermophysics SB RAS, Novosibirsk, Russia


Citation:

Tsvelodub O.Y. Modeling of joint flow of liquid film and turbulent gas at weightlessness / O.Y. Tsvelodub, D.G. Arkhipov // Modern Science: Researches, Ideas, Results, Technologies. - Dnepropetrovsk: SPIC "Triacon". - 2013. - Iss. #1(12). - PP. 353 - 358


Keywords:

liquid films; turbulent gas flow; model equations; microgravity; nonlinear waves


Abstracts:

The flow of a liquid film entrained by a turbulent gas flow is considered. The influence of gravity is neglected. Fluid velocity is significantly lower than the characteristic velocity of the gas, so for gas part of the problem we assume that interface is rigid and fixed. Due to the small film thickness, the perturbations of gas velocity caused by the roughness of the interface are considered as infinitely small. In this case the normal and shear stresses on the interface can be calculated separately for each spatial harmonics. Further modeling of nonlinear wave dynamics on a liquid film is computed under a certain stress field at the interface. At moderate Reynolds numbers in the approximation of long wavelength of the perturbations the model system of equations was used from which in the case of low Reynolds numbers a single evolution equation for the film thickness deviation from the unperturbed level was obtained. The aim of this work is to study this model equation.


References:

  1. Alekseenko S.V., Arkhipov D.G., Tsvelodub O.Yu. Modelling of the shear stresses produced by the turbulent gas flow over the wavy liquid film // FortschrittBerichte, VDI. -2007. - Vol. 3. - N 883. - P. 222-231.

  2. Alekseenko, S.V., Arkhipov, D.G., Tsvelodub, O.Yu. Divergent system of equations for a fluid film flowing down a vertical wall // Dokl. Phys. - Vol 2011. . - Vol 56 . - P. 22-25.

  3. Tsvelodub O.Yu., Arkhipov D.G. Nonlinear wave simulation on a surface of liquid film entrained by turbulent gas flow at weightlessness // Microgravity Science and Technology. -2013 DOI 10.1007/s12217013-9345-x

  4. О.Ю. Цвелодуб Моделирование волновых режимов на пленке вязкой жидкости, стекающей по вертикальной плоскости // Теплофизика и аэромеханика. - 2012. - Т. 19, № 2. - С. 183 - 192.

 

 
     

© SPIC "Kappa", LLC 2009-2016