Modeling of Electromagnetic Manipulation of Plasmas for Communication During Reentry Flight

摘要

Radio blackout that occurs during hypersonic reentry flight is an important issue for the operation of the vehicle.rnSince the radio blackout problem is caused by a high plasma number density around a vehicle, it is necessary tornmanipulate the plasma to allow communication.We suggest a configuration of an E u0001 B layer as a reentry blackoutrnmitigationmethod.The suggestedE u0001 Blayer configurationwith a two-dimensionalmagnetic field is simulated usingrnthe thermalized potentialmodel and the Poisson-likemodel in order to illustrate the effectiveness of this approach asrnamitigationmethod. The numericalmodel uses amagnetohydrodynamics approximation and is solved using a finiternvolumemethod with aRiemann solver. The results of the numericalmodel are assessed using available experimentalrnresults. Astrong plasma density reduction is obtainedwhen the high electric andmagnetic fields are applied near therncathode. The manipulated plasma region provides a possibility to communicate through a plasma layer during arnreentry blackout.