DEVELOPMENT OF A BASIC MEASURING SYSTEM FOR LIQUID-GAS TWO PHASE FLOWS

液-气两相流基本测量系统的开发

• 批准号: 07555302
• 负责人: NAGASHIMA Toshio
• 金额: $ 3.33万
• 依托单位: University of Tokyo
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (B)
• 财政年份: 1995
• 资助国家: 日本
• 起止时间: 1995 至 1996
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-07555302/
• 关键词: Two Phase Flow; Void Fraction; Phased Doppler Velocimetry

A basic measuring system for liquid-gas two phase flows has been established by utilizing Phase Doppler Velocimetry (PDV). In order to check the system, an experimental rig was set up to facilitate vertical flows at steady/transient operation.The present PDV system revealed the details of various bubble size distribution according to the pressure level and flow velocity within the test channel, which was checked by optical visualization technique as well.It can be concluded that the present system provides a useful tool for monitoring the bubble flows including cryogenic fluids.

利用相位多普勒测速技术（PDV）建立了气液两相流测量的基本系统。为了检验该系统，建立了一个实验装置，以促进稳定/瞬态操作的垂直流动。目前的PDV系统揭示了根据测试通道内的压力水平和流速的各种气泡尺寸分布的细节，实验结果表明，该系统为低温等离子体泡状流场的监测提供了一种有效的手段流体.