Control of the drag on a spacecraft in the earth’s ionosphere using the spacecraft’s magnetic field
| Autor: | V. A. Shuvalov, Nikolai B. Gorev, Nikolai I. Pis'mennyi, G. S. Kochubei, N. A. Tokmak |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Physics
020301 aerospace & aeronautics Hypersonic speed Drag coefficient Spacecraft business.industry Aerospace Engineering 02 engineering and technology Plasma Mechanics 01 natural sciences Magnetic field Physics::Fluid Dynamics 0203 mechanical engineering Flow velocity Physics::Plasma Physics Drag Physics::Space Physics 0103 physical sciences Magnetic pressure Astrophysics::Earth and Planetary Astrophysics business 010303 astronomy & astrophysics |
| Zdroj: | Acta Astronautica. 151:717-725 |
| ISSN: | 0094-5765 |
| DOI: | 10.1016/j.actaastro.2018.06.038 |
| Popis: | This paper shows the possibility of active control of the drag on a spacecraft in the Earth's ionosphere using the electromagnetic force produced by the interaction of the spacecraft's magnetic field with the incident plasma flow. As a result of experimental simulation of the dynamic interaction of the magnetic field of a sphere with a hypersonic flow of the rarefied ionospheric plasma, the sphere drag coefficient is determined as a function of the ratio of the magnetic pressure to the dynamic pressure in a wide range of the angle between the incident flow velocity and the magnetic field and the angle between the incident hypersonic plasma flow and the velocity of a subsonic plasma jet injected from the sphere surface. It is shown that injecting a subsonic plasma jet into the mini-magnetosphere cavity provides a several-fold increase in the drag coefficient of a “magnetized” sphere (a sphere with its own magnetic field) in a hypersonic rarefied plasma flow in comparison with a “nonmagnetized” sphere. A 0.6 … 0.8 T magnetic field of a “magnetized” body may be an efficient means for its deorbiting through increasing the drag on the body in the Earth's ionosphere, which provides a way for removing space debris objects to lower orbits. |
| Databáze: | OpenAIRE |
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