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Title :Research and development of a new quantitative flow visualization technique for micro-scale flow field based on quantum dots
Title alternative :Research and development of a new quantitative flow visualization technique for micro-scale flow field based on quantum dots
Authors :李, 艶栄
Authors alternative :LI, YANRONG
Issue Date :21-Jun-2018
Abstract :研究成果の概要(和文):本研究は,量子ドットの光学特性を温度依存性に注目し,マイクロ流路内の温度場と速度場の計測について量子ドットの有用性を検討したものである.量子ドットのより変化率の高い光学特性を温度場計測時の指標とする.量子ドットの光学特性を利用して温度場計測を行い,量子ドットの適性が確認された後は蛍光粒子によるマイクロ流路の速度場計測について信頼性の評価を行った.その後,二種類の方法による温度場・速度場同時計測を実施した.一つ目は蛍光粒子と量子ドット溶液を用いた実験であり,二つ目は量子ドット粒子を温度場計測と速度場計測の両方とものマーカーとした場合の実験である.以上の実験では速度場と温度場を得ることが出来た. 研究成果の概要(英文):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.
Type Local :科研等報告書
Publisher :茨城大学
URI :http://hdl.handle.net/10109/14000
Appears in Collections:Grants-in-aid for scientific research Report (College of Engineering)

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