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Your search keyword '"Thoemel, J."' showing total 7 results
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7 results on '"Thoemel, J."'

5. Radio Communication Blackout Mitigation: Analyzing Magnetic Field Effects via Ray-Tracing Analysis.

Author

Laur, J. S., Giangaspero, V. F., Sharma, V., Lani, A., Donaldson, N., Kim, M. K., Giacomelli, J., Herdrich, G., Hein, A., and Thoemel, J.

Abstract

Avoiding radio communication blackouts during atmospheric entry is crucial to a space mission and can be life-saving. A novel ray-tracing algorithm, called Blackout Ray Tracer (BORAT), based on a Snell's law solver, is introduced to analyze the signal behavior during reentry using geometrical optics for nonmagnetized and magnetized plasma. The ray-tracing analysis is performed on Knapp's case fluid simulations provided by the University of Stuttgart. The effect of an applied magnetic field on ray tracing is discussed and visualized using radiation patterns. The results suggest that a sufficiently strong magnetic field is promising to mitigate radio communication blackouts. [ABSTRACT FROM AUTHOR]

Published
2024
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7. EXPERT - The ESA experimental re-entry vehicle: Overview of the experiments and payloads qualified and accepted for the flight

Author

Antonio Del Vecchio, Marino, G., Thoemel, J., Ratti, F., and Izquierdo, J. G.

Subjects
Engineering, business.industry, Re entry, Full scale, Aerospace engineering, business, Flight test
Abstract

The main objective of the EXPERT project is to collect in-flight data on the most critical ATD phenomena via dedicated classical and advanced flight test measurement assemblies categorized as Scientific Payloads. The scientific data will then to be used to validate state-ofthe-art numerical tools for aerothermodynamic applications and ground-to-flight extrapolation procedures. The EXPERT Payloads are developed to perform the selected aerothermodynamic experiments useful to improve the design capabilities with reference to full scale re-entry capsule, by means of measurement data that will be collected using dedicated devices. In the present paper we present an overview of all experiments and payloads as they have been designed, manufactured and qualified and actually ready for the flight.

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