ИСТИНА

Numerical modeling of direct and shear collisions for two molecular clouds is carried out. The simulation was performed using the author's computational code with parallelization. Various scenarios of the impact of non-rotating clouds and mutual penetration of swirling clouds according to different schemes have been investigated. A numerical experiment was carried out with a change in the num-ber of nodes of the computational mesh from 2563 to 10243. The influence of var-iable swirling regimes of colliding clouds on the change in the shape of the len-ticular compression zones in the region of the main impact is analyzed. Rotation in clouds with spiral transfer before stagnation zone leads to radial redistribution of compressed gas in the collision core and accelerates flexural corrugation of core before destruction. Modeling has shown that ring wave disturbances of mat-ter in a compressed core can be caused by the Kelvin-Helmholtz instability, and non-linear thin-shell instability, leading to local density disturbances in the formed clumps and filaments.