Civil Engineering Reference
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ences of heat exchange and diffusion on decrement of attenuation of free fluctuations
of a steam bubble of a binary mixture were investigated in literature [4-7]. It was found
out that dependence of decrement of attenuation of fluctuations of a bubble of water
mixture of ethyl spirit, methanol, toluene are monotonous on while
k
for a water
mixture ethylene glycol similar dependence has a characteristic minimum at
k
≈
0, 02
0
[2]. And at decrement
k
≤≤ of attenuation of a binary mixture there are less
than decrements of attenuation of pulsations of a bubble in pure single component
to water and ethylene glycol. It means that in ranges of concentration of water of a
pulsation
0, 01
0, 3
0
k
≤≤ of a bubble of a water mixture ethylene glycol fade much
more slowly and there is a braking of process of phase transformations. The similar
picture is revealed and at the compelled fluctuations of bubbles in an acoustic field
[7]. The influence of non-stationary mass transfer processes on distribution of waves
to a binary mixture of liquids with bubbles is reported in [8]. Influence of componen-
tial structure and concentration of a binary mixture on a dispersion, dissipation and
attenuation of monochromatic waves in diphase, two-componential environments is
analyzed. Unlike system of a water mixture of ethyl spirit in a water mixture ethylene
glycol decrements of attenuation of indignations less than corresponding character-
istics in pure components of a mixture. In work [9] calculate structure of stationary
shock waves in bubbly binary mixtures taking into account non-stationary inter phase
heat exchange. As show calculations, and in the problems considered in this work the
effect of infringement of monotony of behavior of settlement curves on the concentra-
tion, testifying to presence diffusion resistance is shown. Apparently in all listed prob-
lems in a number of binary mixes the effect diffusion the resistance leading to braking
of intensity of phase transformations is shown. The physical explanation of why in a
water mixture ethylene glycol so the effect diffusion resistance is brightly shown con-
sists that in such mixture at the limited ability a component diffusion through each
other (
0, 01
0, 3
0
−
=
, D--diffusion factor) evaporation rate a component strongly
differ, and as consequence. Very strongly concentration a component in a mixture and
a steam phase differ. In a case of a water solution of ethyl spirit evaporation rate a
component are approximately identical
92
Dm
10
/ sec
0
1
0
2
χ ≈
χ
c
≈
and finiteness of
factor of diffusion does not lead to essential effects at infringement of thermal and me-
chanical balance of phases. It is necessary to notice that in all works listed above irre-
spective of the considered problems at the mathematical description cardinal influence
of componential structure of a mixture is shown by value of the parameter,
β
equal
. Therefore,
k
0
0
(
)
(
)
2
c
−
k
N
−
N
c
T
1
c
a
,
(5.1)
0
0
c
k
0
β
=
1
−
l
l
0
0
(
)
−
γ
k
1
k
c
L
D
0
0
Where
N
,
N
mole concentration of 1-th component in a liquid and steam
k
c
0
0
µ
k
µ
c
0
1
0
1
N
k
=
µ
N
c
=
µ
,
k
+
−
k
c
+
−
c
0
0
0
0
0
0
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