基于飞秒激光的一维速度场测量方法
(2022) In Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics 43(1). p.267-271- Abstract
Femtosecond laser-induced cyano chemiluminescence uses femtosecond filaments to tag molecules in a flow field, and velocity information of the flow field can be obtained by observing the displacement of the tagged molecules within a known time. The one-dimensional (1D) emitting line contains 1D velocity field information, but only the velocity at the central point can be given because it is unable to precisely correlate the position information before and after the line moves. For this problem, we propose a 1D velocity field inversion algorithm, which can invert the velocity of the whole emitting line according to the displacement of the emitting line and its shape, and finally obtain the 1D-2C velocity field information on the line. By... (More)
Femtosecond laser-induced cyano chemiluminescence uses femtosecond filaments to tag molecules in a flow field, and velocity information of the flow field can be obtained by observing the displacement of the tagged molecules within a known time. The one-dimensional (1D) emitting line contains 1D velocity field information, but only the velocity at the central point can be given because it is unable to precisely correlate the position information before and after the line moves. For this problem, we propose a 1D velocity field inversion algorithm, which can invert the velocity of the whole emitting line according to the displacement of the emitting line and its shape, and finally obtain the 1D-2C velocity field information on the line. By using the moving trajectory of multiple emitting lines we can also obtain the 2D velocity field information.
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- author
- Han, Lei ; Gao, Qiang LU ; Li, Bo LU ; Zhang, Da Yuan and Bai, Xue Song LU
- organization
- alternative title
- One Dimensional Velocity Measurement Based on Femtosecond Laser
- publishing date
- 2022-01
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Femtosecond laser filamentation, One-dimensional measurements, Velocity field
- in
- Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics
- volume
- 43
- issue
- 1
- pages
- 5 pages
- publisher
- Science Press
- external identifiers
-
- scopus:85124252239
- ISSN
- 0253-231X
- language
- Chinese (Simplified)
- LU publication?
- yes
- id
- c9477434-1f3d-4675-8c51-d6c8f775b844
- date added to LUP
- 2023-01-03 12:39:46
- date last changed
- 2023-11-07 11:01:45
@article{c9477434-1f3d-4675-8c51-d6c8f775b844,
abstract = {{<p>Femtosecond laser-induced cyano chemiluminescence uses femtosecond filaments to tag molecules in a flow field, and velocity information of the flow field can be obtained by observing the displacement of the tagged molecules within a known time. The one-dimensional (1D) emitting line contains 1D velocity field information, but only the velocity at the central point can be given because it is unable to precisely correlate the position information before and after the line moves. For this problem, we propose a 1D velocity field inversion algorithm, which can invert the velocity of the whole emitting line according to the displacement of the emitting line and its shape, and finally obtain the 1D-2C velocity field information on the line. By using the moving trajectory of multiple emitting lines we can also obtain the 2D velocity field information.</p>}},
author = {{Han, Lei and Gao, Qiang and Li, Bo and Zhang, Da Yuan and Bai, Xue Song}},
issn = {{0253-231X}},
keywords = {{Femtosecond laser filamentation; One-dimensional measurements; Velocity field}},
language = {{chi}},
number = {{1}},
pages = {{267--271}},
publisher = {{Science Press}},
series = {{Kung Cheng Je Wu Li Hsueh Pao/Journal of Engineering Thermophysics}},
title = {{基于飞秒激光的一维速度场测量方法}},
volume = {{43}},
year = {{2022}},
}