Abstract In this paper, the adhesion between irregularly shaped Martian dust particles and the Martian probe in the dust storm is studied. First, the characteristics of irregularly shaped Martian dust particles are analyzed using fractal theory and the discrete element simulation model of irregularly shaped Martian dust particles is built. Second, the mechanical model of the adhesion of Martian dust onto the Martian probe is established, and the analytical solution of the critical wind speed is calculated. Finally, a series of simulations based on DEM-CFD are performed to analyze the creeping of irregularly shaped Martian dust particles in the Martian atmospheric environment. The research can provide a theoretical basis for the processes of dust protection and cleaning in a Martian dust storm.

中文翻译：

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基于DEM-CFD的不规则形状火星尘埃粒子蠕动研究

摘要 本文研究了沙尘暴中不规则形状的火星尘埃粒子与火星探测器之间的粘附。首先，利用分形理论分析了不规则形状火星尘埃粒子的特征，建立了不规则形状火星尘埃粒子的离散元模拟模型。其次，建立了火星尘埃附着在火星探测器上的力学模型，计算了临界风速的解析解。最后，进行了一系列基于 DEM-CFD 的模拟，以分析不规则形状的火星尘埃粒子在火星大气环境中的蠕动。该研究可为火星沙尘暴中的粉尘防护和清洁过程提供理论依据。