Numerical Simulation of Jetstreams. II: The Two Dimensional Case

摘要: The dynamics of jetstreams have been studied by following the evolution a simulation particle population. self-gravitational field stream has neglected, individual small bodies interacting through hard, partially inelastic collisions only, no fragmentation or accreaction taking place. chosen collision model — beta-model is given Equation (4). will quickly establish Rayleigh distribution both eccentricities and inclinations, average amplitude oscillations associated with eccentricity being up approximately factor √2. velocity inside highly non-Maxwellian. If are sufficiently inelastic, focused, orbits becoming more circular (for azimuthally symmetric streams) ecliptic. In opposite case destroy configuration rapidly. beta collisional unable to produce any radial focusing.