Wpływ ściśliwości gazu na propagację fal niestabilności w jednorodnym gazowym złożu fluidalnym

In the framework of the two-fluid model the stability of the uniform fluidization state has been considered. In contrast to previous works the compressibility of the fluidizing gas has been taken into account. Numerical calculations have been performed in order to estimate quantitatively the influence of the gas compressibility on the dispersion relations for unstable perturbations of the uniform state. A certain destabilizing effect has been observed.