RAYLEIGH-TAYLOR INSTABILITY OF A DUSTY GAS
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Interface instability of «gas+dust» system was explored. A numerical solution of the dispersion equation,
connecting the perturbation wave numbers and its growth rates was found. It was shown that dust density
decreasing, as well as the size of the dust particles increasing, reduces the rate of the instability evolution. The gas viscosity was shown to decrease the rate of perturbation growth with large wave numbers.