High precision thermal modeling of complex systems with application to the flyby and Pioneer anomaly
High precision thermal modeling of complex systems with application to the flyby and Pioneer anomaly
复制标题
复杂系统的高精度热建模及其在飞越和先锋异常中的应用
DOI：
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发表时间：
2011
期刊：
影响因子：
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通讯作者：
Claus Lammerzahl
中科院分区：
文献类型：
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作者：
B. Rievers;Claus Lammerzahl
复杂系统的热建模面临的问题包括系统的详细几何和特性的有效数字化、热流和温度图的计算、热辐射的处理（包括可能的多重反射）、附加的外部影响、从计算的表面数据中提取辐射压力以及计算效率。在以前的出版物[1,2]中，已经概述了这些问题的解决方案，并展示了先驱者航天器的首次应用。在这里，我们将介绍我们的热模型在罗塞塔号飞掠异常和先驱者号异常上的应用。分析指出，热反冲压力不是罗塞塔号飞掠异常的原因，但可能解决了先驱者10号观测到的异常加速度。
Thermal modeling of complex systems faces the problems of an effective digitalization of the detailed geometry and properties of the system, calculation of the thermal flows and temperature maps, treatment of the thermal radiation including possible multiple reflections, inclusion of additional external influences, extraction of the radiation pressure from calculated surface data as well as computational effectiveness. In previous publications [1, 2] the solution to these problems have been outlined and a first application to the Pioneer spacecraft have been shown. Here we like to present the application of our thermal modeling to the Rosetta flyby anomaly as well as to the Pioneer anomaly. The analysis outlines that thermal recoil pressure is not the cause of the Rosetta flyby anomaly but likely resolves the anomalous acceleration observed for Pioneer 10.