Advanced laser-based techniques for gas-phase diagnostics in combustion and aerospace engineering
(2017) In Applied Spectroscopy 71(3). p.341-366- Abstract
Gaining information of species, temperature, and velocity distributions in turbulent combustion and high-speed reactive flows is challenging, particularly for conducting measurements without influencing the experimental object itself. The use of optical and spectroscopic techniques, and in particular laser-based diagnostics, has shown outstanding abilities for performing non-intrusive in situ diagnostics. The development of instrumentation, such as robust lasers with high pulse energy, ultra-short pulse duration, and high repetition rate along with digitized cameras exhibiting high sensitivity, large dynamic range, and frame rates on the order of MHz, has opened up for temporally and spatially resolved volumetric measurements of extreme... (More)
Gaining information of species, temperature, and velocity distributions in turbulent combustion and high-speed reactive flows is challenging, particularly for conducting measurements without influencing the experimental object itself. The use of optical and spectroscopic techniques, and in particular laser-based diagnostics, has shown outstanding abilities for performing non-intrusive in situ diagnostics. The development of instrumentation, such as robust lasers with high pulse energy, ultra-short pulse duration, and high repetition rate along with digitized cameras exhibiting high sensitivity, large dynamic range, and frame rates on the order of MHz, has opened up for temporally and spatially resolved volumetric measurements of extreme dynamics and complexities. The aim of this article is to present selected important laser-based techniques for gas-phase diagnostics focusing on their applications in combustion and aerospace engineering. Applicable laser-based techniques for investigations of turbulent flows and combustion such as planar laser-induced fluorescence, Raman and Rayleigh scattering, coherent anti-Stokes Raman scattering, laser-induced grating scattering, particle image velocimetry, laser Doppler anemometry, and tomographic imaging are reviewed and described with some background physics. In addition, demands on instrumentation are further discussed to give insight in the possibilities that are offered by laser flow diagnostics.
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- author
- Ehn, Andreas LU ; Zhu, Jiajian LU ; Li, Xuesong and Kiefer, Johannes LU
- organization
- publishing date
- 2017
- type
- Contribution to journal
- publication status
- published
- subject
- keywords
- Aerospace engineering, Applied diagnostics, Combustion diagnostics, Turbulent flows
- in
- Applied Spectroscopy
- volume
- 71
- issue
- 3
- pages
- 26 pages
- publisher
- Society for Applied Spectroscopy
- external identifiers
-
- pmid:28155328
- scopus:85020896423
- ISSN
- 0003-7028
- DOI
- 10.1177/0003702817690161
- language
- English
- LU publication?
- yes
- id
- d5e80c07-35b9-4ec0-a378-cd86b1e6f688
- date added to LUP
- 2022-04-01 10:52:44
- date last changed
- 2024-05-03 07:40:40
@article{d5e80c07-35b9-4ec0-a378-cd86b1e6f688,
abstract = {{<p>Gaining information of species, temperature, and velocity distributions in turbulent combustion and high-speed reactive flows is challenging, particularly for conducting measurements without influencing the experimental object itself. The use of optical and spectroscopic techniques, and in particular laser-based diagnostics, has shown outstanding abilities for performing non-intrusive in situ diagnostics. The development of instrumentation, such as robust lasers with high pulse energy, ultra-short pulse duration, and high repetition rate along with digitized cameras exhibiting high sensitivity, large dynamic range, and frame rates on the order of MHz, has opened up for temporally and spatially resolved volumetric measurements of extreme dynamics and complexities. The aim of this article is to present selected important laser-based techniques for gas-phase diagnostics focusing on their applications in combustion and aerospace engineering. Applicable laser-based techniques for investigations of turbulent flows and combustion such as planar laser-induced fluorescence, Raman and Rayleigh scattering, coherent anti-Stokes Raman scattering, laser-induced grating scattering, particle image velocimetry, laser Doppler anemometry, and tomographic imaging are reviewed and described with some background physics. In addition, demands on instrumentation are further discussed to give insight in the possibilities that are offered by laser flow diagnostics.</p>}},
author = {{Ehn, Andreas and Zhu, Jiajian and Li, Xuesong and Kiefer, Johannes}},
issn = {{0003-7028}},
keywords = {{Aerospace engineering; Applied diagnostics; Combustion diagnostics; Turbulent flows}},
language = {{eng}},
number = {{3}},
pages = {{341--366}},
publisher = {{Society for Applied Spectroscopy}},
series = {{Applied Spectroscopy}},
title = {{Advanced laser-based techniques for gas-phase diagnostics in combustion and aerospace engineering}},
url = {{http://dx.doi.org/10.1177/0003702817690161}},
doi = {{10.1177/0003702817690161}},
volume = {{71}},
year = {{2017}},
}