Research and development of a new quantitative flow visualization technique for micro-scale flow field based on quantum dots

2017 Fiscal Year Final Research Report

• Project/Area Number: 15K17967
• Research Category: Grant-in-Aid for Young Scientists (B)
• Allocation Type: Multi-year Fund
• Research Field: Fluid engineering
• Research Institution: Ibaraki University
• Principal Investigator: LI YANRONG 茨城大学, 工学部, 講師 (20712821)
• Project Period (FY): 2015-04-01 – 2018-03-31
• Keywords: 量子ドット / 可視化 / 温度場 / 速度場 / 光学特性評価

Outline of Final Research Achievements

The purpose of this investigation is to develop a new quantitative flow visualization technique based on quantum dots (QDs), which can be applied as both the temperature probe and tracer particles. This technique can be applied to hydro-mechanical micro-electro-　mechanical-systems (MEMS) system to simultaneously determine instantaneous temperature and velocity distributions in such micro-scale flow field. The proposed new visualization technique based on QDs have the outstanding features as: the measurement system can obtain high spatial resolution original images of small-scale flow fields, the QDs has excellent tracing ability, the method can provide high accuracy experimental results, the temperature tendency and the emission features of QDs have high linearity, and so on. During the research period, the temperature dependency of the QDs was clarified and the combined temperature and velocity measurement method and theory for small-scale flow field based on QDs was established.

Free Research Field

熱流体工学