Control of weakly-ionized flow around reentry spacecraft and a feasibility study for its application

航天器重新进入大气层时，由于其周围的热等离子体流造成了严重的空气动力学加热。为了飞行安全，除了开发航天器的热保护系统外，还需要减轻这种严重的加热环境。由于热等离子体受到电磁场存在的影响，我们进行了利用电磁力缓解这种恶劣加热环境的可行性研究。目前的结果表明，通过利用航天器周围适当的静态磁场配置，这种缓解是可行的。最后，通过适当的飞行试验验证了该措施的可行性。

The spacecraft reentering into the atmosphere experiences a sever aerodynamic heating caused by the hot plasma flow around it. For flight safety, it is required to mitigate such a sever heating environment in addition to developing a heat protection system for the spacecraft. Because the hot plasma is influenced by the existence of the electromagnetic field, we conducted a feasibility study to make use of the electromagnetic force to mitigate such a severe heating environment. The present result shows that such a mitigation is feasible by making use of an appropriate static magnetic field configuration around the spacecraft. Furthermore, it is shown that an appropriate flight experiment to validate such a measure is feasible.