论文部分内容阅读
应用网格质点法,对离子发动机栅极系统进行了三维数值模拟.模拟得到了离子发动机栅极系统中的电场分布、离子运动轨迹、离子在计算域内的空间分布和相空间分布等.计算结果表明,屏栅的离子透明度为69.3%,大于其物理透明度67.1%,加速栅的离子透明度为100%,远大于其物理透明度31.1%,说明所选模拟工况参数合理.模拟结果可以为离子发动机栅极的初步设计提供理论参考.
The three-dimensional numerical simulation of ion engine gate system is carried out by using the grid particle method.The electric field distribution, the ion trajectory, the spatial distribution and the phase space distribution of ions in the grid of ion engine are simulated. The results show that the ionic transparency of the screen is 69.3%, which is greater than its physical transparency of 67.1%, the ion transparency of the acceleration grid is 100% which is much larger than its physical transparency of 31.1%, indicating that the parameters of the selected simulation are reasonable.The simulation results can be ion engine The preliminary design of the gate provides a theoretical reference.