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首页> 外文会议>International heat transfer conference;IHTC1998 >Development of temperature sensitive particles for three-dimensional measurement of velocity and temperature
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Development of temperature sensitive particles for three-dimensional measurement of velocity and temperature

机译：开发用于速度和温度的三维测量的温度敏感粒子

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摘要

Presently, a temperature sesnitive particle has been developed which enables us the three-dimensional simultaneous measurement of velocity and temperature in a fluid fow. As we are already made it possible to measure the three-dimensional velocity field with the aid of the threedimensional particle tracking velocimetry (3-D PTV), the clue for the simultaneous measurement of three-dimensional velocity and temperature is how to let the tracer particles have the temperature sensitivity. It has been well known that the laser-induced fluorescence (LIF) is a very useful technique for the temperature measurement, but is has been used only for the two-dimensional measureemnt as the fluorescent dye has been used as a solution. So we have introduced the solution of the fluorescent dye into the membrane of the microcapsule to let only the tracer particles themselves have the temperature sensitivity and made the three-dimensional temperature measurement possible. In this study, the manufacturing process of this temperature sensitive particle has been demonstrated and the brightness of the luminescence at each temperature has been measured to obtain a calibration curve for the temperature measurement by this particle. The effectiveness of the present particle for the temperature measurement has also been shown and the suggestions for the future studies has been demonstrated.
机译：目前，已经开发了一种温度敏感粒子，它使我们能够同时测量流体流动中的速度和温度。由于我们已经可以借助三维粒子跟踪测速仪（3-D PTV）测量三维速度场，因此同时测量三维速度和温度的线索是如何让示踪剂颗粒具有温度敏感性。众所周知，激光诱导荧光（LIF）是一种非常有用的温度测量技术，但是由于荧光染料已被用作溶液，因此仅用于二维测量。因此，我们将荧光染料的溶液引入了微胶囊的膜中，以使仅示踪剂颗粒本身具有温度敏感性，从而使三维温度测量成为可能。在该研究中，已经证明了该温度敏感颗粒的制造过程，并且已经测量了在每个温度下的发光亮度，以获得用于通过该颗粒进行温度测量的校准曲线。还显示了本粒子在温度测量中的有效性，并为以后的研究提供了建议。

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