(3-24) Application of Improved Interferometric Laser Imaging Droplet Sizing (ILIDS) System to Hollow-Cone Sprays((D-3)Diagnostics 3-Applications and Advamced Technolog)
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- Kawaguchi Tatsuya
- Department of System Design Engineering, Keio University
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- Kobayashi Toshihiro
- Department of System Design Engineering, Keio University
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- Maeda Masanobu
- Department of System Design Engineering, Keio University
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- Hu Xiao
- Department of Electronics and Mechanical Engineering, Chiba University
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- Hayama Hiroyuki
- Department of Electronics and Mechanical Engineering, Chiba University
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- Moriyoshi Yasuo
- Department of Electronics and Mechanical Engineering, Chiba University
抄録
In order to estimate the spray characteristics using a swirl-type injector, the spatial distribution of droplet size is one of the most important factors. In this study, two-dimensional measurements of spray droplet size distribution caused by a swirl-type injector are performed using an improved ILIDS (Interferometric Laser Imaging Droplet Sizing) method, which was developed by the authors. Also, measurements of the velocity of droplets using a PIV (Particle Image Velocimetry) method are carried out. The defect of the ILIDS method is the difficulty to distinguish overlapped interference images by droplets. In order to overcome this issue, lenses compressing images are set between a collecting lens and an image plane (CCD sensor). And the circular images are concentrated together with fringes retaining the information for circle diameter and involved fringe number. The experimental setup is illustrated schematically in Fig. 1. The fuel injection system consists of a pressure pump, a feeding tank, a swirl-type injector and a driver. As a light source, a double-pulse YAG laser is employed. A laser sheet with a thickness of 0.5mm is formed at measuring field by transmitting lenses. The scattered lights are collected by collecting lenses. The instantaneous images are captured by a mega-pixel CCD camera synchronizing the light source emissions. As a result, the spatial distributions of droplet-diameter were widely measured at several regions on a vertical cross section including the center-axis. By increasing the injection pressure, the mode diameter shifted to a small value. The distribution was curve-fitted to the Nukiyama-Tanasawa's distribution function and Rosin-Rammler's distribution function by changing the parameters. Estimation of the parameters was experimentally performed.
収録刊行物
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- The international symposium on diagnostics and modeling of combustion in internal combustion engines
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The international symposium on diagnostics and modeling of combustion in internal combustion engines 01.204 (0), 87-, 2001
一般社団法人 日本機械学会
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詳細情報 詳細情報について
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- CRID
- 1390282680858871808
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- NII論文ID
- 110002490420
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- ISSN
- 24242918
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- 本文言語コード
- en
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- データソース種別
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- JaLC
- Crossref
- CiNii Articles
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- 抄録ライセンスフラグ
- 使用不可