基于激光扫描的密集泡状流三维重建与优化

薛婷; 阮维鹏; 张少杰

doi:10.3788/OPE.20172503.0555

您当前的位置：

首页 >

文章列表页 >

基于激光扫描的密集泡状流三维重建与优化

现代应用光学 | 更新时间：2020-07-07

- 基于激光扫描的密集泡状流三维重建与优化
- 3D reconstruction and optimization of dense bubbly flow based on laser scanning
- 光学精密工程 2017年25卷第3期页码：555-561
- 作者机构：
  
  1.天津大学电气与自动化工程学院, 天津 300072
  2.天津市过程检测与控制重点实验室, 天津 300072
- 作者简介：
  
  [ "薛婷 (1977-), 女, 山西太谷人, 博士, 副教授, 1998年、2004年、2007年于天津大学分别获得学士、硕士、博士学位, 主要从事多相流测试、光学诊断和光电测试等方面的研究。E-mail:xueting@tju.edu.cn" ]
  [ "张少杰 (1992-), 男, 湖北天门人, 硕士研究生, 2014年于南昌大学获得学士学位, 主要从事多相流测量、图像处理等方面的研究。E-mail:zhangshaojie_hb@163.com" ]
- 基金信息：
  
  国家自然科学基金资助项目(61372143);国家自然科学基金资助项目(61671321)
- DOI：10.3788/OPE.20172503.0555
  中图分类号： TN247
- 收稿日期：2016-09-28，
  
  录用日期：2016-11-29，
  
  纸质出版日期：2017-03-25
- 稿件说明：
移动端阅览
薛婷, 阮维鹏, 张少杰. 基于激光扫描的密集泡状流三维重建与优化[J]. 光学精密工程, 2017,25(3):555-561.

Ting XUE, Wei-peng RUAN, Shao-jie ZHANG. 3D reconstruction and optimization of dense bubbly flow based on laser scanning[J]. Optics and precision engineering, 2017, 25(3): 555-561.
薛婷, 阮维鹏, 张少杰. 基于激光扫描的密集泡状流三维重建与优化[J]. 光学精密工程, 2017,25(3):555-561. DOI： 10.3788/OPE.20172503.0555.

Ting XUE, Wei-peng RUAN, Shao-jie ZHANG. 3D reconstruction and optimization of dense bubbly flow based on laser scanning[J]. Optics and precision engineering, 2017, 25(3): 555-561. DOI： 10.3788/OPE.20172503.0555.

摘要

为测量密集气液泡状流的流动形态及参数，建立了基于激光扫描的三维可视化测量系统。采用片状激光结合旋转正多边形棱镜实现对流场的光学扫描，高速摄像机采集扫描切片图像，首先对图像进行预处理。针对扫描成像中产生的切片重复曝光问题，提出二阶微分平均卷积优化算法，该方法不仅可以有效提取多切片图像中重复曝光的特征点，而且可以去除冗余及噪声信息。实验结果表明，针对分散相遮挡的密集泡状流，基于激光扫描可完整重建其三维结构，二阶微分优化算法可以有效降低重建畸变影响，重建后体积含气率的相对误差优于6%。激光扫描方法非侵入、重建精度高，具有传统方法不可比拟的优势。

Abstract

In order to reconstruct the flow regime of dense bubbly flow and to measure flow parameters

a 3D visual measurement system based on laser scanning was constructed. Laser sheet combined with a rotating polygonal prism was employed for optical scanning of the flow field. The slice images of field were recorded by a high-speed camera and the 3D structure was reconstructed by a series of image preprocessing methods. Considering the multiple exposure in slices during the scanning process

an optimization algorithm based on template convolution of second-order differential and mean was proposed

which can effectively extract feature points of multiple exposure from slices and simultaneously remove redundant and noise information. The experiment results demonstrated that the 3D structure of dense bubbly flow with overlapped projection of bubbles can be perfectly reconstructed by the proposed laser scanning method. The optimization algorithm based on second-order differential can effectively reduce the distortion of reconstructed structure. The volume void fraction of reconstructed field is less than 6% in relative error compared to the actual value. The non-intrusive measurement based on laser scanning can realize 3D reconstruction of the dense bubbly flow with high accuracy

thus proving remarkable advantages in comparison with traditional methods.

关键词

Keywords

references

GUNN D J, AL-DOORI H H. The measurement of bubble flows in fluidized beds by electrical probe [J]. International Journal of Multiphase Flow, 1985, 11(4): 535-551.

FOSSA M. Design and performance of a conductance probe for measuring the liquid fraction in two-phase gas-liquid flows [J]. Flow Measurement & Instrumentation, 1998, 9(2): 103-109.

HU B, YANG H M, HEWITT G F. Measurement of bubble size distribution using a flying optical probe technique: Application in the highly turbulent region above a distillation plate [J]. Chemical Engineering Science, 2007, 62(10): 2652-2662.

LINDKEN R, MERZKIRCH W. A novel PIV technique for measurements in multiphase flows and its application to two-phase bubbly flows [J]. Experiments in Fluids, 2002, 33(6): 814-825.

周云龙, 尚秋华, 范振儒, 等.气液两相流容积含气率的图像检测方法[J].热能动力工程, 2008, 23(5):507-511.

ZHOU Y L, SHANG Q H, FAN ZH R, et al.. Image processing based detection method for the measurement of volumetric gas content in a gas-liquid two-phase flow [J]. Journal of Engineering for Thermal Energy & Power, 2008, 23(5): 507-511. (in Chinese)

PALERO V R, LOBERA J, ARROYO M P. Three-component velocity field measurement in confined liquid flows with high-speed digital image plane holography [J]. Experiments in Fluids, 2010, 49(2): 471-483.

BUSCIGLIO A, GRISAFI F, SCARGIALI F, et al.. On the measurement of local gas hold-up, interfacial area and bubble size distribution in gas-liquid contactors via light sheet and image analysis: Imaging technique and experimental results [J]. Chemical Engineering Science, 2013, 102: 551-566.

LAU Y M, DEEN N G, KUIPERS J A M. Development of an image measurement technique for size distribution in dense bubbly flows [J]. Chemical Engineering Science, 2013, 94: 20-29.

ZHONG S, ZOU X, ZHANG Z B, et al.. A flexible image analysis method for measuring bubble parameters [J]. Chemical Engineering Science, 2016, 141: 143-153.

SONG Q, LUO R, YANG X Y, et al.. Phase distributions for upward laminar dilute bubbly flows with non-uniform bubble sizes in a vertical pipe [J]. International Journal of Multiphase Flow, 2001, 27(2): 379-390.

LUO R, SONG Q, YANG X Y, et al.. A three-dimensional photographic method for measurement of phase distribution in dilute bubble flow [J]. Experiments in Fluids, 2002, 32(1): 116-120.

XUE T, QU L Q, CAO Z F, et al.. Three-dimensional feature parameters measurement of bubbles in gas-liquid two-phase flow based on virtual stereo vision [J]. Flow Measurement & Instrumentation, 2012, 27: 29-36.

薛婷, 曹兆峰, 金俞鑫.基于虚拟立体视觉的气液两相流三维测量系统的标定[J].光学精密工程, 2012, 20(1):124-130.

XUE T, CAO ZH F, JIN Y X. Calibration of three-dimensional measurement system for gas-liquid two phase flow based on virtual stereo vision [J].Opt. Precision Eng., 2012, 20(1): 124-130. (in Chinese)

BELDEN J, TRUSCOTT T T, AXIAK M C, et al.. Three-dimensional synthetic aperture particle image velocimetry [J]. Measurement Science & Technology, 2010, 21(12): 128-125403.

BELDEN J, RAVELA S, TRUSCOTT T T, et al.. Three-dimensional bubble field resolution using synthetic aperture imaging: application to a plunging jet[J]. Experiments in Fluids, 2012, 53(3): 839-861.

王新征, 卜雄洙, 于靖.结合多分辨率修正曲率配准的层间插值[J].光学精密工程, 2016, 24(5):1224-1231.

WANG X ZH, BU X ZH, YU J.Slice interpolation on multilevel modified curvature-based registration[J]. Opt. Precision Eng., 2016, 24(5): 1224-1231. (in Chinese)

浏览量

557

下载量

CSCD

文章被引用时，请邮件提醒。

提交

工具集

关联资源

局部相关点平衡的三维激光点云骨架提取

面结构光测量曲面特征的不确定度评估

基于平面补丁的自适应八叉树三维图像重建

双频投影条纹相位展开方法的改进

基于深度相机的大场景三维重建