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Thermophysics and Aeromechanics

2007 year, number 3

On diffusion mixing of vapor and gas

I.M. Bayanov, A.F. Karimov, and V.Sh. Shagapov
The Birsk State Social and Pedagogic Academy, Bashkortostan, Russia
Pages: 383–393


A self-similar solution is obtained for a one-dimensional problem of diffusion mixing of vapor and gas, which is followed by condensation process. Two limiting cases of mixing are considered: in the first one, the vapor and gas occupy in their initial states the volumes of semi-infinite extension, in the second case, the vapor has a semi-infinite extension, and constant values of temperature and gas concentration are maintained at its boundary. The peculiarities of the temperature and concentration fields are analysed versus the vapor and gas temperatures, and the temperature values are found, at which the mixing occurs with the condensate formation.