Inversion of the density gradient under multicomponent mixing of gases in the vertical cylindrical channel
Keywords:
quasistationary stable diffusion mixing of gases, concentration distribution, density distribution, inversion of density gradientAbstract
Problem of the quasistationary distribution of mass density of ternary gas mixtures in a vertical cylindrical channel is considered. It is shown, that the exponential term in the expression for the distribution of component concentration along channel length at sufficiently large values of the heavy component concentration leads to the essential nonlinearity in the density distribution along channel length that determines the possibility of inversion of the density gradient. Calculation of the density distribution inside channel for some mixtures containing hydrocarbons, where the convection occurrence has been shown, is given.
References
1 Kosov V.N., Seleznev V.D., Zhavrin Yu. I. The inversion of density gradient during the isothermal binary diffusion of gases equally diluted by a third gas // Thermophysics and aeromechanic. – 1998. – Vol. 5, No. 2. – P. 189-194.
2 Aleksandrov O.E. The exact solution of the equation for diffusion of a three-component mixture through a capillary // Tech. Phys. – Vol. 46, No. 11. – P. 1367-1370.
3 Suetin P.E., Volobuev P.V. Barroeffect pri vzaimnoi diffuzii gazov // Zh.Tech.Phys. – 1964. – Vol. 34, No. 6. – P. 1107-1114. (in Russ)
4 Seleznev V.D., Smirnov V.H. Diffusiya trekhkomponentnoi smesi gazov v sisteme dvukh kolb // Zh.Tekh.Fis. – 1981. – Vol. 51, No. 4. – P. 975-980. (in Russ)
2 Aleksandrov O.E. The exact solution of the equation for diffusion of a three-component mixture through a capillary // Tech. Phys. – Vol. 46, No. 11. – P. 1367-1370.
3 Suetin P.E., Volobuev P.V. Barroeffect pri vzaimnoi diffuzii gazov // Zh.Tech.Phys. – 1964. – Vol. 34, No. 6. – P. 1107-1114. (in Russ)
4 Seleznev V.D., Smirnov V.H. Diffusiya trekhkomponentnoi smesi gazov v sisteme dvukh kolb // Zh.Tekh.Fis. – 1981. – Vol. 51, No. 4. – P. 975-980. (in Russ)
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Published
2013-12-18
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Section
Thermal Physics and Theoretical Thermal Engineering
