Influence of Hall Effect on Electrodynamic Heat Shield System for Reentry Vehicles
Influence of Hall Effect on Electrodynamic Heat Shield System for Reentry Vehicles
复制标题
DOI：
10.2514/1.40372
复制
发表时间：
2010-10
期刊：
影响因子：
2.5
通讯作者：
H. Otsu;D. Konigorski;T. Abe
中科院分区：
文献类型：
--
作者：
H. Otsu;D. Konigorski;T. Abe
研究了霍尔效应对具有半球形头部和外加偶极子磁场的再入飞行器的磁流控制的影响。为此，进行了霍尔参数的参数研究。目前的结果表明，霍尔效应显着影响的电位分布和电流模式内的冲击层，取决于车辆表面的导电性，但它不影响在圆周方向上的电流强度在绝缘壁的情况下。结果，即使当车辆表面被视为绝缘壁时霍尔效应显著，冲击-间隔距离也不会改变。目前的参数研究阐明，这一结论是适用于各种霍尔参数，使我们能够得到洞察的现象背后的机制。这一结论表明，如果把飞行器表面看作是一个绝缘壁，即使考虑霍尔效应，再入飞行器的磁流控制仍将是一种有用的技术。
The influence of the Hall effect on the magnetic flow control to a reentry vehicle with a hemispherical nose and the imposed dipole magnetic field was investigated. For this purpose, a parametric study for the Hall parameter was conducted. The present result shows that the Hall effect drastically affects the electric potential distribution and electric current pattern inside the shock layer, depending on the vehicle surface conductivity, but it does not affect the current strength in the circumferential direction in the case of the insulating wall. As a result, the shock-standoff distance does not change, even if the Hall effect is significant when the vehicle surface is regarded as an insulating wall. The present parametric study clarified that this conclusion is applicable in a wide variety of the Hall parameter and enables us to get an insight of the mechanism behind the phenomenon. This conclusion suggests that, if the vehicle surface is regarded as an insulating wall, the magnetic flow control for the reentry vehicle will prove to still be a useful technology, even when the Hall effect is taken into account.