Magnetic nozzles with their contactless feature have opened new grounds for long-distance space travels. For quicker mission completions along with improving system reliability, it becomes necessary to design robust systems that exhibit the ability to confine thrust. A semianalytical numerical method is proposed for rapid and assumption-less calculations of the magnetic field because of a thick coil with rectangular cross section. The method is extended for the proposal of a three-coil setup, where divergence angle of the magnetic field lines is readily controlled in-flight to provide the flexibility to modify the output magnetic thrust and the nozzle’s efficiency.

中文翻译：

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用于控制磁性喷嘴发散度的三线圈装置

具有非接触式功能的磁性喷嘴为长距离太空旅行开辟了新天地。为了更快地完成任务并提高系统可靠性，有必要设计具有限制推力能力的稳健系统。由于具有矩形横截面的厚线圈，提出了一种半解析数值方法来快速和无假设地计算磁场。该方法针对三线圈设置的建议进行了扩展，其中磁场线的发散角在飞行中很容易控制，以提供修改输出磁推力和喷嘴效率的灵活性。