V.N.Oliynik On the low-frequency asymptotics of sound velocity in concentrated dispersed mixture |
Acoustic bulletin, Vol. 9 ¹ 4, (2006) |
| The low-frequency asymptotics of sound velocity in the liquid-liquid or liquid-gas dispersed mixture has been studied on the basis of the acoustic model of emulsion with the allowance for local thermal interaction between its microstructural elements. An improved technique for forming the macroscopic thermodynamic parameters of such medium is validated. The correction due to calculating the effective specific heat on the basis of the mass shares of matters-components is estimated. This provides the explanation of an imaginary contradiction caused by incorrect normalization when computing the dispersion jump of sound velocity. |
|
KEY WORDS: a dispersion mixture, microstructure, sound velocity, thermomechanic coupling, low-frequency asymptotics, effective specific heat |
| TEXT LANGUAGE: Ukrainian |