Study of 3D-flow-field velocimetry for turbomachine
涡轮机三维流场测速研究
基本信息
- 批准号:12650166
- 负责人:
- 金额:$ 0.58万
- 依托单位:
- 依托单位国家:日本
- 项目类别:Grant-in-Aid for Scientific Research (C)
- 财政年份:2000
- 资助国家:日本
- 起止时间:2000 至 2002
- 项目状态:已结题
- 来源:
- 关键词:
项目摘要
In this research, the image analyzing system with a single camera was developed for the PIV measurement of the unsteady velocity distribution in 3D space and it was applied to the unsteady flow measurement of the strong shear flow between a static and rotating disks to demonstrate its utility.First, a derotating observation system with a reflective prism was constructed to measure the velocity distribution relative to the rotating object, such as an impeller or a fan of turbomachine at the speed up to 300RPM. A 3CCD camera and the Michelson interferometer with two color filters were employed in the observation system to measure the depth of tracer particles distributed in 3D space. The particle depth for each tracer particle was measured using a pair of green and red frames simultaneously captured with different focus settings. The depth detection was performed by means of the technique of a depth-from-defocus. It was confirmed in numerical simulations and experiments that the depth detection based on a depth-from-defocus could be carried out with the error ratio of 3% to the measurable depth range if the spatial resolution of original images was higher.Secondly, a 3D particle tracking algorithm based on self-organizing maps neural network was developed for 3D Particle Image Velocimetry (3D-PTV). The tracking performance was checked in numerical simulations for the uniform flow and the rotating flow in a cubic cavity.Furthermore, the present observation system with a single camera was successfully applied to the velocity distribution measurement for the strong shear flow in the gap between a static and rotating disks. In this experiment, it was shown that the distribution of tangential velocity component along the axial coordinate could be measured with the flow visualization images captured from the axial direction using the present method.
本研究开发了单摄像机图像分析系统,用于三维空间非定常速度分布的PIV测量,并将其应用于静、旋转圆盘间强剪切流的非定常流场测量,以验证其实用性。首先,构建了一个带反射棱镜的反旋观测系统,用于测量相对于旋转物体的速度分布,例如叶轮或转速高达300 RPM的涡轮风扇。观测系统采用3CCD摄像机和带双色滤光片的迈克尔逊干涉仪测量示踪粒子在三维空间中的分布深度。每个示踪剂颗粒的颗粒深度使用一对绿色和红色帧来测量,这对帧是用不同的焦点设置同时捕获的。深度检测采用散焦深度技术进行。数值模拟和实验结果表明,在原始图像空间分辨率较高的情况下,基于散焦恢复深度的深度检测方法可以实现对可测深度范围的3%误差。其次,提出了一种基于自组织映射神经网络的三维粒子图像测速(3D-PTV)跟踪算法。通过对均匀流和旋转流的数值模拟,验证了该系统的跟踪性能,并将该系统成功地应用于静、旋转圆盘间强剪切流差距的速度分布测量。实验结果表明,利用本方法可以从轴向获取流动显示图像,测量切向速度分量沿着轴向的分布。
项目成果
期刊论文数量(5)
专著数量(0)
科研奖励数量(0)
会议论文数量(0)
专利数量(0)
Murata, S., Kizawa, S.: "PIV measurement and CFD analysis for the shear flow between static and rotating disks"Proceedings of 10th International Symposium on Flow Visualization. Paper No. F0290. (2002)
Murata, S.、Kizawa, S.:“静态圆盘和旋转圆盘之间剪切流的 PIV 测量和 CFD 分析”第十届国际流动可视化研讨会论文集。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Murata, S. & Uratani, I.: "A study on the measurement accuracy of a depth-from-defocus technique for 3D-PIV measurement"Proceedings of 9th International Conference on Laser Anemometry Advances and Applications (Limerick, Ireland). 199-206 (2000)
村田,S.
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
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- 通讯作者:
Murata, S., Kizawa.S.: "PIV measurement and CFD analysis for the shear flow between static and rotating disks"Proceeding 10th Intemational Symposium on Flow Visualization. F0290. (2002)
Murata, S., Kizawa.S.:“静态盘和旋转盘之间剪切流的 PIV 测量和 CFD 分析”第 10 届流动可视化国际研讨会进行中。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Murata, S., Uratani, I.: "A study on the measurement accuracy of a depth-from-defocus technique for 3D-PIV measurement"Proceedings of 9th International Conference on Laser Anemometry Advances and Applications (Limerick, Ireland). 199-206 (2001)
Murata, S.、Uratani, I.:“3D-PIV 测量离焦深度技术的测量精度研究”第九届激光风速测量进展与应用国际会议(爱尔兰利默里克)会议记录。
- DOI:
- 发表时间:
- 期刊:
- 影响因子:0
- 作者:
- 通讯作者:
Murata, S. & Kizawa, S.: "PIV measurement and CFD analysis for the shear flow between static and rotating disks"Proceedings of 10th International Symposium on Flow Visualization. Paper No.F0290. (2002)
村田,S.
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- 发表时间:
- 期刊:
- 影响因子:0
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MURATA Shigeru其他文献
MURATA Shigeru的其他文献
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{{ truncateString('MURATA Shigeru', 18)}}的其他基金
Development of multi-wavelength digital holography for highly accurate particle measurement
开发用于高精度粒子测量的多波长数字全息术
- 批准号:
17K06156 - 财政年份:2017
- 资助金额:
$ 0.58万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
photochemical water splitting using a mixed vesicular system
使用混合囊泡系统的光化学分解水
- 批准号:
16K05881 - 财政年份:2016
- 资助金额:
$ 0.58万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Study of High Performance Method for Particle Measurement in 3D-space Based on Digital Holography
基于数字全息术的高性能3D空间粒子测量方法研究
- 批准号:
26420110 - 财政年份:2014
- 资助金额:
$ 0.58万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Introduction of flow system to vesicular reaction systems capable of converting light energy to chemical potential
将流动系统引入能够将光能转化为化学势的囊泡反应系统
- 批准号:
25620147 - 财政年份:2013
- 资助金额:
$ 0.58万 - 项目类别:
Grant-in-Aid for Challenging Exploratory Research
Study in the development of light energy conversion system using lipid bilayer membranes
利用脂质双层膜的光能转换系统的开发研究
- 批准号:
20550119 - 财政年份:2008
- 资助金额:
$ 0.58万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Feasibility study of high performance monocular 3D-PIV using phase-shifting digital holography
使用相移数字全息术的高性能单目 3D-PIV 的可行性研究
- 批准号:
19560172 - 财政年份:2007
- 资助金额:
$ 0.58万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Development of highly accurate dynamic 3D-PIV based on digital holography and its applications
基于数字全息的高精度动态3D-PIV研制及其应用
- 批准号:
17560148 - 财政年份:2005
- 资助金额:
$ 0.58万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Mechanistic Studies of Photoinduced Electron Transport across Vesicle Bilayers
光诱导电子跨囊泡双层传输的机理研究
- 批准号:
16550030 - 财政年份:2004
- 资助金额:
$ 0.58万 - 项目类别:
Grant-in-Aid for Scientific Research (C)
Study of Organic Reaction Processes by the Use of Low-Temperature Matrix-Isolation Technique
利用低温基质分离技术研究有机反应过程
- 批准号:
09440214 - 财政年份:1997
- 资助金额:
$ 0.58万 - 项目类别:
Grant-in-Aid for Scientific Research (B)