Temperature Measurement of Air Flow Using Fluorescent Mists Combined with Two-Color LIF

• 作者: Koji Toriyama Shumpei Funatani Tetsuaki Takeda
• 来源期刊: 流量控制、测量及可视化(英文)
• 学科: 医学
• 关键词: Flow VISUALIZATION Two-Color LIF TEMPERATURE Measurement SPRAYING MIST
• 年，卷（期）: 2013,（1）
• 页码范围: 20-23
• 页数: 4页
• 分类号: R73

摘要

This study proposes a two-color laser-induced fluorescence (LIF) technique for measuring the temperature distribution of an airflow by spraying a mist of a fluorescent dye. The mist is generated by using propylene glycol, the vapor pressure of which is much lower than that of water, as the solvent of the fluorescent dyes. A supersonic moisture chamber is used as the atomizer for seeding the tracer particles to be visualized. The proposed technique is applied to the measurement of the temperature distribution in a thermal vertical buoyant plume. The proposed two-color LIF thermometry is found to be very effective for the study of such a thermal structure, and it is well suited for measuring the temperature field of an airflow.