检索结果-南通市图书馆

LIQUID PHASE FLOW ESTIMATION IN GAS-LIQUID TWO-PHASE FLOW USING INVERSE ANALYSIS AND PARTICLE TRACKING VELOCIMETRY

Journal of Hydrodynamics 2004年第6期16卷 730-736页

作者： CHENGWen MURAlYuichi SASAKIToshio YAMAMOTOFujio DepartmentofMechanicalEngineering UniversityofFukuiFukuiJapan divisionofmechanicalscience HokkaidoUniversityHokkaidoJapan DepartmentofMechanicalEngineering UniversityofFukuiFukuiJapan／／EnvironmentResearchInstituteXianUniversityofTechnologyXi＇an710048China

An inverse analysis algorithm is proposed for estimating liquid phase flowfield from measurement data of bubble motion. This kind of technology will be applied in future forvarious estimation of fluid flow in rivers, lakes, sea surface flow, and also microscopic channelflow as the problem-handling in civil, mechanical, electronic, and chemical engineering. Therelationship between the dispersion motion and the carrier phase flow is governed and expressed bythe trans-lational motion equation of spherical dispersion. The equation consists of all the forcecomponents including inertia, added inertia, drag, lift, pressure gradient force and gravity *** this equation enables us to estimate the carrier phase flow structure using only the data ofthe dispersion motioa Whole field liquid flow structure is also estimated using spatial or temporalinterpolation method. In order to verify this principle, the Taylor-Green vortex flow, and theKarman vortex shedding from a square cylinder have been chosea The results show that the combinationof the inverse analysis and Particle Tracking Velocimetry (PTV) with the spatio-temporalpostprocessing algorithm could reconstruct well the carrier phase flow of the gas-liquid two-phaseflow.

关键词： particle tracking velocimetry(PTV) multiphase flow inverse analysis post-processing algorithm carrier phase dispersed phases

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

SIMULTANEOUS PIV/PTV MEASUREMENTS OF BUBBLE AND PARTICLE PHASES IN GAS-LIQUID TWO-PHASE FLOW BASED ON IMAGE SEPARATION AND RECONSTRUCTION

引用

Journal of Hydrodynamics 2004年第6期16卷 756-766页

作者： QUJian-wu MURAlYuichi YAMAMOTOFujio DepartmentofMechanicalEngineering UniversityofFukuiFukuiJapan／／CollegeofIndustrialEngineeringWenzhouUniversityWenzhou325007China divisionofmechanicalscience SchoolofEngineeringHokkaidoUniversityKitakuJapan FiberAmenityEngineeringCourse GraduateSchoolofEngineeringUniversityofFukuiFukuiJapan

A Particle Image Velocimetry (PIV) method based on the image separation andreconstruction with the median filter and triangular Bezier patch was proposed to measure multiplevelocity fields from single-camera images in the present study. The method was examined on syntheticPIV images with the Green-Taylor two-phase vortex flows and the test results showed high accuracyand highly correct tracking percent compared with the exact solution. An experiment of the bubblyjet flow was also conducted as a practical demonstration of the present method. As a result, it isconfirmed from the simulation image examination and the experimental measurement that the proposedmethod shows a good performance in the measurement of bubble and particle phases.

关键词： multiphase flow flow visualization image separation image reconstruction particle image velocimetry (PIV) triangular bezier patch

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

MEASUREMENT OF BUBBLE-BUBBLE INTERACTION DEPENDED ON REYNOLDS NUMBER USING STEREOSCOPIC BUBBLE-TRACKING TECHNIQUE

引用

Journal of Hydrodynamics 2005年第2期17卷 243-251页

作者： QUJian-wu MURAlYuichi YAMAMOTOFujio DepartmentofMechanicalEngineering UniversityofFukuiFukuiJapan／／CollegeofIndustrialEngineeringWenzhouUniversityWenzhou325035China divisionofmechanicalscience SchoolofEngineeringHokkaidoUniversitySapporo.Japan FiberAmenityEngineeringCourse GraduateSchoolofEngineeringUniversityofFukuiFukuiJapan

Bubble-bubble interaction in free rising bubbly flows is experimentally investigated in the present study. The velocity vectors of the bubbles are measured by a stereoscopic bubble-tracking technique and then the relative velocity vectors of two nearest-neighbor bubbles are calculated with high statistical reliability. With the measurement data at Reynolds number ranging from 5 to 75, the vertical attraction and the horizontal repulsion are confirmed for Re30 have repulsive velocity bothin the horizontal and the vertical directions as those rise closely. Moreover, the three-dimensional structure of the bubble-bubble interaction is discussed with the data analysis of the interaction vector fields.

关键词： bubbly flow bubbly dynamics three-dimensional measurement PTV image processing

来源：

维普期刊数据库

同方期刊数据库评论

在线全文

学校读者我要写书评

暂无评论

欢迎您,

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案：

请选择收藏分类：

通借通还

欢迎您,

建议与咨询 留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

时间限定

文献类型

馆藏选择

核心期刊

语言

文献类型

帮助

文字说明：

检索规则说明：

检索范例：

分类表

所选分类

限定检索结果

文献类型

馆藏范围

日期分布

学科分类号

主题

机构

作者

语言

在线全文

在线全文

在线全文

请选择保存的检索档案： 新增检索档案 确定 取消

请选择收藏分类： 新增自定义分类 确定 取消

通借通还

建议与咨询留下您的常用邮箱和电话号码，以便我们向您反馈解决方案和替代方法

请选择保存的检索档案：

请选择收藏分类：