Calculation of laser induced impulse based on the laser supported detonation wave model with dissociation, ionization and radiation
In the laser intensity range that the laser supported detonation (LSD) wave can be maintained, dissociation, ionization and radiation take a substantial part of the incidence laser energy. There is little treatment on the phenomenon in the existing models, which brings obvious discrepancies between...
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2014-03-01
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Online Access: | http://dx.doi.org/10.1063/1.4870241 |
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doaj-981bc378fd13463586902093c4d97a492020-11-25T01:12:30ZengAIP Publishing LLCAIP Advances2158-32262014-03-0143037124037124-1110.1063/1.4870241025403ADVCalculation of laser induced impulse based on the laser supported detonation wave model with dissociation, ionization and radiationLi Gan0Cheng Mousen1Li Xiaokang2College of Aerospace Science and Engineering, National University of Defense Technology, Changsha, ChinaCollege of Aerospace Science and Engineering, National University of Defense Technology, Changsha, ChinaCollege of Aerospace Science and Engineering, National University of Defense Technology, Changsha, ChinaIn the laser intensity range that the laser supported detonation (LSD) wave can be maintained, dissociation, ionization and radiation take a substantial part of the incidence laser energy. There is little treatment on the phenomenon in the existing models, which brings obvious discrepancies between their predictions and the experiment results. Taking into account the impact of dissociation, ionization and radiation in the conservations of mass, momentum and energy, a modified LSD wave model is developed which fits the experimental data more effectively rather than the existing models. Taking into consideration the pressure decay of the normal and the radial rarefaction, the laser induced impulse that is delivered to the target surface is calculated in the air; and the dependencies of impulse performance on laser intensity, pulse width, ambient pressure and spot size are indicated. The results confirm that the dissociation is the pivotal factor of the appearance of the momentum coupling coefficient extremum. This study focuses on a more thorough understanding of LSD and the interaction between laser and matter.http://dx.doi.org/10.1063/1.4870241 |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Li Gan Cheng Mousen Li Xiaokang |
spellingShingle |
Li Gan Cheng Mousen Li Xiaokang Calculation of laser induced impulse based on the laser supported detonation wave model with dissociation, ionization and radiation AIP Advances |
author_facet |
Li Gan Cheng Mousen Li Xiaokang |
author_sort |
Li Gan |
title |
Calculation of laser induced impulse based on the laser supported detonation wave model with dissociation, ionization and radiation |
title_short |
Calculation of laser induced impulse based on the laser supported detonation wave model with dissociation, ionization and radiation |
title_full |
Calculation of laser induced impulse based on the laser supported detonation wave model with dissociation, ionization and radiation |
title_fullStr |
Calculation of laser induced impulse based on the laser supported detonation wave model with dissociation, ionization and radiation |
title_full_unstemmed |
Calculation of laser induced impulse based on the laser supported detonation wave model with dissociation, ionization and radiation |
title_sort |
calculation of laser induced impulse based on the laser supported detonation wave model with dissociation, ionization and radiation |
publisher |
AIP Publishing LLC |
series |
AIP Advances |
issn |
2158-3226 |
publishDate |
2014-03-01 |
description |
In the laser intensity range that the laser supported detonation (LSD) wave can be maintained, dissociation, ionization and radiation take a substantial part of the incidence laser energy. There is little treatment on the phenomenon in the existing models, which brings obvious discrepancies between their predictions and the experiment results. Taking into account the impact of dissociation, ionization and radiation in the conservations of mass, momentum and energy, a modified LSD wave model is developed which fits the experimental data more effectively rather than the existing models. Taking into consideration the pressure decay of the normal and the radial rarefaction, the laser induced impulse that is delivered to the target surface is calculated in the air; and the dependencies of impulse performance on laser intensity, pulse width, ambient pressure and spot size are indicated. The results confirm that the dissociation is the pivotal factor of the appearance of the momentum coupling coefficient extremum. This study focuses on a more thorough understanding of LSD and the interaction between laser and matter. |
url |
http://dx.doi.org/10.1063/1.4870241 |
work_keys_str_mv |
AT ligan calculationoflaserinducedimpulsebasedonthelasersupporteddetonationwavemodelwithdissociationionizationandradiation AT chengmousen calculationoflaserinducedimpulsebasedonthelasersupporteddetonationwavemodelwithdissociationionizationandradiation AT lixiaokang calculationoflaserinducedimpulsebasedonthelasersupporteddetonationwavemodelwithdissociationionizationandradiation |
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