One-dimensional full-range mixture fraction measurements with femtosecond laser-induced plasma spectroscopy
(2020) In Experiments in Fluids 61(2).- Abstract
Abstract: Femtosecond laser-induced plasma spectroscopy (FLIPS) was performed to achieve full-range mixture fraction measurements in non-reacting CH4/air flow fields. A femtosecond laser at 800 nm was used to generate a plasma channel with a uniform intensity distribution. Through measuring spatially resolved spectra and calibration, we found that the spectral intensity ratios of CH (431 nm)/N2 (337 nm), CH (431 nm)/N2 (357 nm), C2 (516.5 nm)/N2 (337 nm), C2 (516.5 nm)/N2 (357 nm) and CH (431 nm)/O (777 nm) could be used to realize mixture fraction measurements, and the first four intensity ratios can achieve full-range mixture fraction measurements.... (More)
Abstract: Femtosecond laser-induced plasma spectroscopy (FLIPS) was performed to achieve full-range mixture fraction measurements in non-reacting CH4/air flow fields. A femtosecond laser at 800 nm was used to generate a plasma channel with a uniform intensity distribution. Through measuring spatially resolved spectra and calibration, we found that the spectral intensity ratios of CH (431 nm)/N2 (337 nm), CH (431 nm)/N2 (357 nm), C2 (516.5 nm)/N2 (337 nm), C2 (516.5 nm)/N2 (357 nm) and CH (431 nm)/O (777 nm) could be used to realize mixture fraction measurements, and the first four intensity ratios can achieve full-range mixture fraction measurements. Furthermore, through quantitative analysis of the distribution along the plasma channel, we analyzed the one-dimensional measurement capability of FLIPS. The main advantages of FLIPS for mixture fraction measurements are one-dimensional quantitative measurement, full-range measurement, high spatial resolution and no Bremsstrahlung interference. Graphic abstract: [Figure not available: see fulltext.].
(Less)
- author
- Li, Bo LU ; Zhang, Dayuan ; Gao, Qiang LU and Li, Zhongshan LU
- organization
- publishing date
- 2020
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Experiments in Fluids
- volume
- 61
- issue
- 2
- article number
- 33
- publisher
- Springer
- external identifiers
-
- scopus:85077794508
- ISSN
- 0723-4864
- DOI
- 10.1007/s00348-020-2877-0
- language
- English
- LU publication?
- yes
- id
- 8d0919ac-aad3-4de5-b93c-dd2bcf7e75da
- date added to LUP
- 2020-01-24 08:56:42
- date last changed
- 2022-04-18 20:05:13
@article{8d0919ac-aad3-4de5-b93c-dd2bcf7e75da, abstract = {{<p>Abstract: Femtosecond laser-induced plasma spectroscopy (FLIPS) was performed to achieve full-range mixture fraction measurements in non-reacting CH<sub>4</sub>/air flow fields. A femtosecond laser at 800 nm was used to generate a plasma channel with a uniform intensity distribution. Through measuring spatially resolved spectra and calibration, we found that the spectral intensity ratios of CH (431 nm)/N<sub>2</sub> (337 nm), CH (431 nm)/N<sub>2</sub> (357 nm), C<sub>2</sub> (516.5 nm)/N<sub>2</sub> (337 nm), C<sub>2</sub> (516.5 nm)/N<sub>2</sub> (357 nm) and CH (431 nm)/O (777 nm) could be used to realize mixture fraction measurements, and the first four intensity ratios can achieve full-range mixture fraction measurements. Furthermore, through quantitative analysis of the distribution along the plasma channel, we analyzed the one-dimensional measurement capability of FLIPS. The main advantages of FLIPS for mixture fraction measurements are one-dimensional quantitative measurement, full-range measurement, high spatial resolution and no Bremsstrahlung interference. Graphic abstract: [Figure not available: see fulltext.].</p>}}, author = {{Li, Bo and Zhang, Dayuan and Gao, Qiang and Li, Zhongshan}}, issn = {{0723-4864}}, language = {{eng}}, number = {{2}}, publisher = {{Springer}}, series = {{Experiments in Fluids}}, title = {{One-dimensional full-range mixture fraction measurements with femtosecond laser-induced plasma spectroscopy}}, url = {{http://dx.doi.org/10.1007/s00348-020-2877-0}}, doi = {{10.1007/s00348-020-2877-0}}, volume = {{61}}, year = {{2020}}, }