Modeling of the Pulsed Inductive Thruster Operating with Ammonia Propellant
Modeling of the Pulsed Inductive Thruster Operating with Ammonia Propellant
复制标题
DOI：
10.2514/1.26609
复制
发表时间：
2007-07
影响因子：
1.9
通讯作者：
P. Mikellides;N. Ratnayake
中科院分区：
文献类型：
--
作者：
P. Mikellides;N. Ratnayake
数值模拟与实验数据的比较被用来验证代码，并提供见解氨推进剂的最高性能相比，其他测试的推进剂。用于模拟的时间相关的，二维的，轴对称磁流体动力学代码升级的一个新的两个温度的热化学模型，提供氨的热力学性质，包括氮离子化到第五级。与实验数据的比较包括在两个位置的磁场波形和总脉冲值的范围内的操作能量水平和推进剂质量值。代码的预测和实验的相对较好的协议，允许进一步询问相关的等离子体流动特性，并提供了一个可能的解释，以提高效率的推进器与氨推进剂操作。
Comparisons of numerical simulations to experimental data are used to validate the code and offer insights into the highest-to-date performance of ammonia propellant compared to other tested propellants. The time-dependent, two-dimensional, axisymmetric magnetohydrodynamics code used for the simulations is upgraded by a new two-temperature thermochemical model that provides ammonia's thermodynamic properties including nitrogen ionization up to the fifth level. The comparisons to experimental data include magnetic field waveforms at two locations and total impulse values for a range of operating energy levels and propellant mass values. The relatively good agreement of the code's predictions and experiment allows further interrogation of the pertinent plasma flow characteristics and offers a possible explanation as to the elevated efficiency demonstrated by the thruster operated with ammonia propellant.