Numerical Study of an Innovative Aero-capture Technology using Electrodynamic force

我们进行了粒子模拟来研究电动空气捕获器的可行性。结果表明，在高空高超声速稀薄再入流动中，电动阻力的增加和热流密度的降低是可以实现的。因此，电动制动是可行的。根据这一结果，我们利用连续流模拟定量地研究了电动力的高度变化。结果表明，在地球入口处，82公里以下的高度会产生较大的电动力，但在较高的高度，由于雪崩电离的失活，电动力将消失。

We performed a particle simulation to investigate the feasibility of the electro-dynamic aero-capture. The results showed that the large electro-dynamic drag increase and heat flux reduction are achievable in hypersonic rarefied reentry flows at high altitudes. Therefore, the electro-dynamic braking is found to be feasible. From this result, we investigated the altitude variations of the electro-dynamic force quantitatively using continuum flow simulations. The results showed that large electro-dynamic force generates at altitudes lower than 82 km in earth entries, but the force will vanish at higher altitudes because of the deactivation of avalanche ionizations.