Аннотация:The paper presents the results of mathematical modelling of the processes of formation of super-dense clouds(proto nuclear), as well as the formation of thin film structures - filaments. Numerical simulations of collisions oftwo dissimilar (in size, displacement, and internal distribution of matter) spherical clouds were performed underdifferent scenarios on high-resolution grids containing several billion nodes. The author's program based on a highresolution difference scheme in a three-dimensional setting was created to simulate the fine structure that occursduring a shock interaction with molecular clouds.The shape of the structure and vibrations in the impact core depend on the initial conditions of the collision. Thepaper presents a morphological analysis of the redistribution of dense inclusions in a layer of shock-compressed gasand generated filaments. The mechanism of perturbations and turbulence of the substance, fragmentation anddestruction of molecular clouds is revealed