Abstract

In work one submodel of flow of gas with the linear field of speeds is considered. It is formed by system of non-linear differential equations with initial data. Several first integrals of such system are found. For express initial data of a task approximate solution of differential equations of a submodel is found. To such decision there correspond the world lines describing the becoming straight scattering of particles of gas from a whirlwind. Trajectories of driving of particles of gas are constructed.