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Single Shot SLIPI LIF/Mie Ratio for Droplet Sizing in DISI-Sprays

Kögl, Matthias ; Mishra, Yogeshwar Nath LU ; Storch, Michael ; Kristensson, Elias LU ; Will, Stefan ; Zigan, Lars and Berrocal, Edouard LU (2016)
Abstract
This paper reports on the first realization of two-phase SLIPI (Structured Laser Illumination Planar Imaging) in combination with LIF/Mie ratio imaging for a single shot mapping of relative SMD (Sauter Mean Diameter) in a transient fuel spray. The technique is applied to a non-combusting multi-jet DISI (direct-injection spark-ignition) spray of ethanol fuel injected into an optically accessible constant volume chamber. The organic dye Eosin is added to the fuel as a laser-induced fluorescence (LIF) tracer when illuminated by the 532nm laser sheet. It is found that SLIPI produces more reliable relative SMD distributions in comparison to the conventional LIF/Mie-approach. Multiple scattered light is suppressed by the SLIPI technique and the... (More)
This paper reports on the first realization of two-phase SLIPI (Structured Laser Illumination Planar Imaging) in combination with LIF/Mie ratio imaging for a single shot mapping of relative SMD (Sauter Mean Diameter) in a transient fuel spray. The technique is applied to a non-combusting multi-jet DISI (direct-injection spark-ignition) spray of ethanol fuel injected into an optically accessible constant volume chamber. The organic dye Eosin is added to the fuel as a laser-induced fluorescence (LIF) tracer when illuminated by the 532nm laser sheet. It is found that SLIPI produces more reliable relative SMD distributions in comparison to the conventional LIF/Mie-approach. Multiple scattered light is suppressed by the SLIPI technique and the background spray plumes and artifacts behind the illuminated plane are successfully suppressed. The single-shot SLIPI images give a clear insight into the highly turbulent liquid spray structure and provide reliable information on the spatial droplet distribution. (Less)
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type
Chapter in Book/Report/Conference proceeding
publication status
published
host publication
ILASS – Europe 2016, 27th Annual Conference on Liquid Atomization and Spray Systems, 4-7 September 2016
language
English
LU publication?
yes
id
9eec074f-4940-4562-93da-c653d80dd940
date added to LUP
2020-10-20 10:23:11
date last changed
2021-11-29 13:03:07
@inproceedings{9eec074f-4940-4562-93da-c653d80dd940,
  abstract     = {{This paper reports on the first realization of two-phase SLIPI (Structured Laser Illumination Planar Imaging) in combination with LIF/Mie ratio imaging for a single shot mapping of relative SMD (Sauter Mean Diameter) in a transient fuel spray. The technique is applied to a non-combusting multi-jet DISI (direct-injection spark-ignition) spray of ethanol fuel injected into an optically accessible constant volume chamber. The organic dye Eosin is added to the fuel as a laser-induced fluorescence (LIF) tracer when illuminated by the 532nm laser sheet. It is found that SLIPI produces more reliable relative SMD distributions in comparison to the conventional LIF/Mie-approach. Multiple scattered light is suppressed by the SLIPI technique and the background spray plumes and artifacts behind the illuminated plane are successfully suppressed. The single-shot SLIPI images give a clear insight into the highly turbulent liquid spray structure and provide reliable information on the spatial droplet distribution.}},
  author       = {{Kögl, Matthias and Mishra, Yogeshwar Nath and Storch, Michael and Kristensson, Elias and Will, Stefan and Zigan, Lars and Berrocal, Edouard}},
  booktitle    = {{ILASS – Europe 2016, 27th Annual Conference on Liquid Atomization and Spray Systems, 4-7 September 2016}},
  language     = {{eng}},
  month        = {{09}},
  title        = {{Single Shot SLIPI LIF/Mie Ratio for Droplet Sizing in DISI-Sprays}},
  url          = {{https://lup.lub.lu.se/search/files/85590405/ILASS_16_very_final_version_EB.pdf}},
  year         = {{2016}},
}