SIMULATION OF COLLISIONS IN PLANETARY RINGS
SIMULATION OF COLLISIONS IN PLANETARY RINGS
复制标题
行星环碰撞模拟
DOI：
--
复制
发表时间：
1997
期刊：
影响因子：
--
通讯作者：
C. Cassini
中科院分区：
文献类型：
--
作者：
J. Hertzsch;H. Scholl;F. Spahn;I. Katzorke;C. Cassini
本文研究了嵌入小卫星轨道附近平面环结构的演化。根据实验和理论结果，通过引入速度相关的阻力系数，考虑了碰撞的影响。在这里，我们提出了最近的多粒子模拟的结果，显示了显着的影响粒子间碰撞的尾流结构的形成和持久性的模型环。与无碰撞模型相反，观察到一个稳定的，非镜像对称的尾流模式，强度在方位角方向上逐渐减小。尾流强度的方位阻尼率由模拟中获得的数据估计。
We investigate the evolution of structures in plane- tary rings in the neighbourhood of the orbit of an embedded moonlet (small satellite). The effects of collisions have been taken into account by introducing the velocity dependent resti- tution coefcient according to experimental and theoretical re- sults. Here we present results of recent many-particle simula- tions which show a signicant influence of the interparticle col- lisions on the formation and persistence of wake structures in a model ring. In contrary to the collision-free model, a stationary, non-mirrorsymmetric wake pattern with decreasing intensity in azimuthal direction is observed. The azimuthal damping rate of the wake intensity is estimated from the data obtained in the simulation.