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Lightning-Induced Current and Voltage on a Rocket in the Presence of Its Trailing Exhaust Plume
2010 (English)In: IEEE transactions on electromagnetic compatibility (Print), ISSN 0018-9375, E-ISSN 1558-187X, Vol. 52, no 1, 117-127 p.Article in journal (Refereed) Published
Abstract [en]

This paper presents time-domain characteristics of induced current and voltage on a rocket in the presence of its exhaust plume when an electromagnetic (EM) wave generated by a nearby lightning discharge is incident on it. For the EM-field interaction with the rocket, the finite-difference time-domain technique has been used. The distributed electrical parameters, such as capacitance and inductance of the rocket and its exhaust plume, are computed using the method of moments technique. For the electrical characterization of the exhaust plume, the computational fluid dynamics technique has been used. The computed peak value of the electrical conductivity of the exhaust plume is 0.12 S/m near the exit plane and it reduces to 0.02 S/m at the downstream end. The relative permittivity varies from 0.91 to 0.99. The exhaust plume behaves as a good conductor for EM fields with frequencies less than 2.285 GHz. It has been observed that the peak value of the induced current on the rocket gets enhanced significantly in the presence of the conducting exhaust plume for the rocket and exhaust plume dimensions and parameters studied. The magnitude of the time-varying induced current at the tail is much more than that of any other section of the rocket.

Place, publisher, year, edition, pages
2010. Vol. 52, no 1, 117-127 p.
Keyword [en]
Computational fluid dynamics (CFD), exhaust plume, finite-difference time domain (FDTD), induced current, induced voltage, lightning electromagnetic (EM) field, method of moments (MoM), rocket
National Category
Electrical Engineering, Electronic Engineering, Information Engineering
Identifiers
URN: urn:nbn:se:kth:diva-28755DOI: 10.1109/TEMC.2009.2034140ISI: 000274730800014Scopus ID: 2-s2.0-77249139614OAI: oai:DiVA.org:kth-28755DiVA: diva2:389542
Note
QC 20110119Available from: 2011-01-19 Created: 2011-01-19 Last updated: 2017-12-11Bibliographically approved

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Nayak, Sisir Kumar
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  • apa
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