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Temperature and velocity measurement on unsteady high-Reynolds number flow by using laser-induced thermal acoustics

利用激光诱导热声学测量非稳态高雷诺数流的温度和速度

基本信息

批准号：
22560175
负责人：
MIZUKAKI Toshiharu
金额：
$ 1.91万
依托单位：
Tokai University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
2010
资助国家：
日本
起止时间：
2010 至 2012
项目状态：
已结题

项目摘要

The author has developed a laser-applied measurement technique based on laser-induced thermal acoustics (LITA) for short-time and unsteady temperature history with micro-second-order time resolution. The author developed an experimental apparatus to reveal temperature history caused by planer shock with shock tube. The measurement technique has successfully revealed temperature history caused by shock waves, with accuracy of 10% (at maximum). The developed measurement technique would be utilized to reveal, the temperature profile of flow field around aerospace craft at supersonic speeds, which the thermometer with micro-second-order response time is required to measure.

作者发展了一种基于激光感生热声（LITA）的短时非稳态温度历史的激光应用测量技术，具有微秒级时间分辨率。作者研制了一套利用激波管揭示平面激波温度历程的实验装置。该测量技术已成功地揭示了冲击波引起的温度历史，精度为10%（最大值）。该测量技术可用于揭示超声速飞行器周围流场的温度分布，这是微二阶响应时间温度计所需要测量的。