ExoMars 2020任务尘埃套件微med传感器流体动力学设计优化

2018 5th IEEE International Workshop on Metrology for AeroSpace (MetroAeroSpace) Pub Date : 2018-06-01 DOI:10.1109/METROAEROSPACE.2018.8453505

G. Mongelluzzo, F. Esposito, F. Cozzolino, C. Molfese, S. Silvestro, C. Popa, M. Dall’ora, Marek Lubieniecki, F. Cortecchia, B. Saggin, D. Scaccabarozzi, A. Zakharov

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引用次数: 9

摘要

空气尘埃的表征是火星太空任务的一个关键方面。火星大气中一直存在尘埃，根据季节的不同，其浓度不同，其特征是了解火星全球气候的关键因素。MicroMED是一种光学粒子计数器，已被选为ExoMars 2020任务的一部分，作为俄罗斯“尘埃综合体”套件的传感器之一，它被设计用于表征火星大气中的尘埃，测量空气中矿物颗粒的大小分布和浓度。为了优化仪器的采样效率和正确表征0.4 ~ 20µm直径范围内粉尘颗粒的能力，进行了CFD模拟。通过分析，可以得出在火星上进行测试和操作的最佳环境条件，并提供了如何优化MicroMED流体动力学设计、提高仪器性能的关键信息。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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Optimization of the Fluid Dynamic Design of the Dust Suite-MicroMED Sensor for the ExoMars 2020 Mission

Airborne dust characterization is a critical aspect in space missions to Mars. Dust is always present in the Martian atmosphere, with different concentration depending on the season, and its characterization is a key element in understanding Mars global climate. MicroMED is an optical particle counter that has been selected to be part of the ExoMars 2020 mission as one of the sensors of the Russian “Dust Complex” suite and it has been designed to characterize dust in Martian atmosphere, measuring size distribution and concentration of airborne mineral grains. CFD simulations were performed in order to optimize the instrument sampling efficiency and its ability to correctly characterize dust grains in the 0.4-20 µm diameter range. The analysis allowed to derive the optimum environmental conditions for tests and operations on Mars and provided key information on how to optimize MicroMED's fluid dynamic design, improving the performances of the instrument.

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来源期刊

2018 5th IEEE International Workshop on Metrology for AeroSpace (MetroAeroSpace)

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