A high temporal resolution numerical algorithm for shock wave velocity diagnosis

We propose a high temporal resolution numerical algorithm for shock wave velocity diagnosis. By analysing variations in the optical path and phasor of a light field, we determine a high temporal resolution shock wave velocity equation for a velocity interferometer system for any reflector (VISAR). T...

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Detalles Bibliográficos
Autores principales: Wu, Yuji, Wang, Feng, Wang, Qiuping, Li, Yulong, Jiang, Shaoen
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2019
Materias:
Article
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6565696/
https://www.ncbi.nlm.nih.gov/pubmed/31197241
http://dx.doi.org/10.1038/s41598-019-45112-3
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author Wu, Yuji
Wang, Feng
Wang, Qiuping
Li, Yulong
Jiang, Shaoen
author_facet Wu, Yuji
Wang, Feng
Wang, Qiuping
Li, Yulong
Jiang, Shaoen
author_sort Wu, Yuji
collection PubMed
description We propose a high temporal resolution numerical algorithm for shock wave velocity diagnosis. By analysing variations in the optical path and phasor of a light field, we determine a high temporal resolution shock wave velocity equation for a velocity interferometer system for any reflector (VISAR). The equation can be transformed into matrix form for numerical solution. To solve noise problems, a ‘filtering velocity spectrum’ method is proposed. Analysis of a VISAR data example shows that the resolution precision of shock wave velocity obtained from the numerical algorithm is the same as the temporal resolution of a streak camera. Moreover, it can observe the shock wave in greater detail. This algorithm can be used to observe detailed images and determine the mechanism and evolution of extreme shock waves, as well as provide data for research into hydrodynamic behaviour in inertial confinement fusion.
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spelling pubmed-65656962019-06-20 A high temporal resolution numerical algorithm for shock wave velocity diagnosis Wu, Yuji Wang, Feng Wang, Qiuping Li, Yulong Jiang, Shaoen Sci Rep Article We propose a high temporal resolution numerical algorithm for shock wave velocity diagnosis. By analysing variations in the optical path and phasor of a light field, we determine a high temporal resolution shock wave velocity equation for a velocity interferometer system for any reflector (VISAR). The equation can be transformed into matrix form for numerical solution. To solve noise problems, a ‘filtering velocity spectrum’ method is proposed. Analysis of a VISAR data example shows that the resolution precision of shock wave velocity obtained from the numerical algorithm is the same as the temporal resolution of a streak camera. Moreover, it can observe the shock wave in greater detail. This algorithm can be used to observe detailed images and determine the mechanism and evolution of extreme shock waves, as well as provide data for research into hydrodynamic behaviour in inertial confinement fusion. Nature Publishing Group UK 2019-06-13 /pmc/articles/PMC6565696/ /pubmed/31197241 http://dx.doi.org/10.1038/s41598-019-45112-3 Text en © The Author(s) 2019 Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in a credit line to the material. If material is not included in the article’s Creative Commons license and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/.
spellingShingle Article
Wu, Yuji
Wang, Feng
Wang, Qiuping
Li, Yulong
Jiang, Shaoen
A high temporal resolution numerical algorithm for shock wave velocity diagnosis
title A high temporal resolution numerical algorithm for shock wave velocity diagnosis
title_full A high temporal resolution numerical algorithm for shock wave velocity diagnosis
title_fullStr A high temporal resolution numerical algorithm for shock wave velocity diagnosis
title_full_unstemmed A high temporal resolution numerical algorithm for shock wave velocity diagnosis
title_short A high temporal resolution numerical algorithm for shock wave velocity diagnosis
title_sort high temporal resolution numerical algorithm for shock wave velocity diagnosis
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6565696/
https://www.ncbi.nlm.nih.gov/pubmed/31197241
http://dx.doi.org/10.1038/s41598-019-45112-3
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