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On the use of infrared thermography in studies with air curtain devices

机译：关于红外热成像在气幕装置研究中的使用

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Among the different existing methods to characterise the aerodynamic sealing effect provided by an air curtain device placed over the opening between two contiguous compartments, infrared thermography has revealed to be a very useful tool. Besides allowing the capture, in an expedite way, of instantaneous images of the temperature field in the neighbourhood of the door, the technique hereon described has other advantages, in terms of quick and easy setup, low intrusive character and liability of obtained results.To apply this method, a large sheet of paper was stretched in the direction perpendicular to the opening where the air curtain device has placed to allow the registration of pictures or video sequences with an infrared camera setup in its maximum sensitivity.Good concordance between the thermographs obtained with this technique and the temperature fields measured for the same plane with a rack of 16 low velocity omni-directional thermal anemometer probes allowed its validation.Various elucidative examples of the use of this technique as a complementary tool for analysis and visualization of the complex physical phenomena occurring for the studied flow are presented in this article.
机译：在表征由两个相邻隔间之间的开口上方的气幕装置提供的空气密封效果的现有方法的不同方法中，红外热成像技术已被证明是一种非常有用的工具。除了允许以快速的方式捕获门附近温度场的瞬时图像外，本文描述的技术还具有其他优点，包括快速简便的设置，低侵入性和获得结果的可靠性。应用此方法，在垂直于气幕装置放置处的开口的方向上拉伸了一张大纸，从而可以使用红外热像仪设置以最大灵敏度记录图像或视频序列。获得的热像图之间具有良好的一致性使用该技术，并用16个低速全向热风速计探头在同一平面上测得的温度场进行了验证。该技术作为辅助工具对复杂物理场进行分析和可视化的各种说明性示例本文介绍了针对所研究流发生的现象。

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