月球舱压气释放与泄气模拟：对月球环境的污染
Venting and Outgassing Simulations of Pressurized Lunar Modules: Contamination of the Lunar Environment
AI总结：
研究月球舱压气释放和泄气对月球环境的污染影响，通过DSMC方法分析气流扩散，并利用视因子方法评估泄气对月球大气的污染范围。
摘要：
阿耳忒弥斯计划的一个目标是确定人类活动对月球环境的影响，这可能会损害科学目标和测量。我们对一个旨在在月球表面接待宇航员的月球舱原型几何体的泄气和泄气污染进行了初步分析。通过直接模拟蒙特卡洛（DSMC）方法研究了气锁泄压产生的气流在月球稀薄大气中扩散的情况，针对两种不同的泄气配置进行分析，并计算了表面粒子通量随距离的变化。然后，使用视因子方法分析了月球舱主体（假设覆盖有多层绝缘（MLI）材料）和太阳能板的泄气情况，采用文献中的泄气率进行分析。我们的结果给出了污染水平低于月球大气中本征物种特征值的距离的初步指示。针对40Ar的科学测量应距离月球舱30至100米远，而检测低丰度物种如极地陨石坑水可能需要行驶到月球舱3公里以外。
英文摘要：
One objective of Artemis science is to determine the impact human activities have on the lunar environment, which might compromise science objectives and measurements. We perform a preliminary analysis of the contamination associated with airlock venting and outgassing from a prototype lunar-module geometry intended to host astronauts on the lunar surface. The air flow generated by the depressurization of the airlock, expanding in the lunar exosphere, is studied using the Direct Simulation Monte Carlo (DSMC) method for two different venting configurations and the particle flux on the surface is computed as a function of the distance from the the module. Outgassing from the main body of the module -- assumed to be covered with a Multi-Layer Insulation (MLI) blanketing -- and from the solar panels is then analyzed using a view-factor method, employing outgassing rates from the literature.Our results give preliminary indications of the distance at which contamination levels fall below the values characteristic of native species in the lunar atmosphere. Scientific measurements targeting 40Ar should be carried farther than 30--100 meters from the module, while the detection of lower-abundance species such as polar-crater water might require to travel up to and beyond 3 km from the module.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
