Improving supersonic flights with femtosecond laser filamentation

When a flying object becomes supersonic, a concomitant increase in drag leads to a considerable rise in fuel consumption. We show experimentally that an embarked terawatt femtosecond laser can significantly decrease this drag. We measured a 50% transient reduction of drag on a test model placed in a...

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Autores principales: Elias, P.-Q., Severac, N., Luyssen, J.-M., André, Y.-B., Doudet, I., Wattellier, B., Tobeli, J.-P., Albert, S., Mahieu, B., Bur, R., Mysyrowicz, A., Houard, A.
Formato: Online Artículo Texto
Lenguaje:English
Publicado: American Association for the Advancement of Science 2018
Materias:
Research Articles
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6214642/
https://www.ncbi.nlm.nih.gov/pubmed/30406206
http://dx.doi.org/10.1126/sciadv.aau5239
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author Elias, P.-Q.
Severac, N.
Luyssen, J.-M.
André, Y.-B.
Doudet, I.
Wattellier, B.
Tobeli, J.-P.
Albert, S.
Mahieu, B.
Bur, R.
Mysyrowicz, A.
Houard, A.
author_facet Elias, P.-Q.
Severac, N.
Luyssen, J.-M.
André, Y.-B.
Doudet, I.
Wattellier, B.
Tobeli, J.-P.
Albert, S.
Mahieu, B.
Bur, R.
Mysyrowicz, A.
Houard, A.
author_sort Elias, P.-Q.
collection PubMed
description When a flying object becomes supersonic, a concomitant increase in drag leads to a considerable rise in fuel consumption. We show experimentally that an embarked terawatt femtosecond laser can significantly decrease this drag. We measured a 50% transient reduction of drag on a test model placed in a supersonic wind tunnel at Mach 3. This effect was initiated by the thin hot air column created in front of the supersonic object by filamentation of the laser pulse. We also show that this technique offers possibilities for steering.
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spelling pubmed-62146422018-11-07 Improving supersonic flights with femtosecond laser filamentation Elias, P.-Q. Severac, N. Luyssen, J.-M. André, Y.-B. Doudet, I. Wattellier, B. Tobeli, J.-P. Albert, S. Mahieu, B. Bur, R. Mysyrowicz, A. Houard, A. Sci Adv Research Articles When a flying object becomes supersonic, a concomitant increase in drag leads to a considerable rise in fuel consumption. We show experimentally that an embarked terawatt femtosecond laser can significantly decrease this drag. We measured a 50% transient reduction of drag on a test model placed in a supersonic wind tunnel at Mach 3. This effect was initiated by the thin hot air column created in front of the supersonic object by filamentation of the laser pulse. We also show that this technique offers possibilities for steering. American Association for the Advancement of Science 2018-11-02 /pmc/articles/PMC6214642/ /pubmed/30406206 http://dx.doi.org/10.1126/sciadv.aau5239 Text en Copyright © 2018 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works. Distributed under a Creative Commons Attribution NonCommercial License 4.0 (CC BY-NC). http://creativecommons.org/licenses/by-nc/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution-NonCommercial license (http://creativecommons.org/licenses/by-nc/4.0/) , which permits use, distribution, and reproduction in any medium, so long as the resultant use is not for commercial advantage and provided the original work is properly cited.
spellingShingle Research Articles
Elias, P.-Q.
Severac, N.
Luyssen, J.-M.
André, Y.-B.
Doudet, I.
Wattellier, B.
Tobeli, J.-P.
Albert, S.
Mahieu, B.
Bur, R.
Mysyrowicz, A.
Houard, A.
Improving supersonic flights with femtosecond laser filamentation
title Improving supersonic flights with femtosecond laser filamentation
title_full Improving supersonic flights with femtosecond laser filamentation
title_fullStr Improving supersonic flights with femtosecond laser filamentation
title_full_unstemmed Improving supersonic flights with femtosecond laser filamentation
title_short Improving supersonic flights with femtosecond laser filamentation
title_sort improving supersonic flights with femtosecond laser filamentation
topic Research Articles
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6214642/
https://www.ncbi.nlm.nih.gov/pubmed/30406206
http://dx.doi.org/10.1126/sciadv.aau5239
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