Development and publicizing of the simple and low-priced drop-sizing system for dispersive two-phase flows utilizing an image sensor

2015 Fiscal Year Final Research Report

• Project/Area Number: 25420116
• Research Category: Grant-in-Aid for Scientific Research (C)
• Allocation Type: Multi-year Fund
• Section: 一般
• Research Field: Fluid engineering
• Research Institution: Toyohashi University of Technology
• Principal Investigator: SUZUKI Takashi 豊橋技術科学大学, 工学(系)研究科(研究院), 准教授 (10235963)
• Project Period (FY): 2013-04-01 – 2016-03-31
• Keywords: 粒径計測 / レーザー回折 / 画像センサー / 分散系二相流 / 噴霧 / 簡易計測 / 計測システム開発

Outline of Final Research Achievements

Size evaluation of spray droplets, suspended particles or bubbles is indispensable for the research of dispersive two-phase flows. Low-priced particle-sizing devices will be welcomed by the academic researches. From this point of view, the author developed a simple particle-sizing system based on laser-diffraction method utilizing an image sensor to evaluate the intensity distribution of scattered-light from particles. The optical setup was composed of general optical parts. The system had been opened for the academic researchers, but it had several imperfections.
In this study, the system was improved much by the innovation of the optical setup. Several trial measurements were performed, and it was shown that the improved system is of use for the diameter measurement of suspended particles and spray droplets. The improved system, the introduction manual with parts list and the PC code for measurement, is publicized for the academic researches through the home-page.

Free Research Field

熱流体工学