This Journal is devoted to the advancement of the science and technology of astronautics and aeronautics through the dissemination of original archival research papers disclosing new theoretical developments and/or experimental results. The topics include aeroacoustics, aerodynamics, combustion, fundamentals of propulsion, fluid mechanics and reacting flows, fundamental aspects of the aerospace environment, hydrodynamics, lasers and associated phenomena, plasmas, research instrumentation and facilities, structural mechanics and materials, optimization, and thermomechanics and thermochemistry. Papers also are sought which review in an intensive manner the results of recent research developments on any of the topics listed above
高空气球的气体在大气科学,气象学,并要求平流层观测等应用不可缺少的工具。许多类型的气球操作的有效性的前提是准确的轨道预报能力。特别是有针对性的航班,取样返回任务,或昂贵的仪器(其可收回性是必不可少的)的航班依赖这些模型。在本文中,作者描述了一个新的气球飞行的仿真模型,该模型考虑了一系列的环境,物理和运营的不确定性产生一个预测轨迹配备了着陆点的位置误差估计。在这样的模型误差的一个重要来源是拖反对气球在自由的气氛中崛起的不完全理解;在这里,作者提出了一种基于从数以千计的无线电探空仪的航班得出的经验数据一个新的随机阻力模型。是预测误差的其他来源还研究,影响的飞行路径预测的准确度,如在风廓线和气球信封制造变异的不确定性。作者展示了如何将这些元素整合到一个过程,产生模拟的轨迹蒙特卡罗合奏,取得了一个实用的飞行计划工具,这是我们提供给不断膨胀的社会作为一个免费的在线服务。 |