Particle-based temperature measurement coupled with velocity measurement
Particle-based temperature measurement coupled with velocity measurement
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DOI：
10.1088/1361-6501/abc0b0
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发表时间：
2021-02
影响因子：
2.4
通讯作者：
S. Someya
中科院分区：
文献类型：
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作者：
S. Someya
这篇综述文章重点介绍基于粒子的速度和温度的同步测量。具有荧光粉颗粒的热成像 PIV 包含在范围内。然而，还有许多其他染料掺杂颗粒可用于这些方法，其中一些更适合液体流量和低温流量的测量。这篇综述总结了温度敏感颗粒的制造方法、应用、光学特性和局限性，并且这篇综述提供的广泛领域覆盖使其可作为进一步实验的基础。本综述还总结了掺杂传感器分子，使得制造适合个别研究人员目标的功能颗粒成为可能。这些粒子由紫外激光激发，其中几种可以使用常见的绿色激光激发。解释了速度和温度测量的几种方法、基于单色强度的方法、比率方法和寿命方法。组合方法受到速度条件的限制；因此，将温度测量与速度测量分离有时是合理的。然而，本次审查也考虑了组合测量。使用这些方法时，有许多可能的错误来源；然而，最重要的因素是颗粒的跟随能力，尤其是在气流中。定量讨论了基于寿命的方法中由于固有的长时间曝光而导致的粒子图像的变形。介绍了液体/气体/多相流测量的应用。微胶囊或微珠通常用于液体流动和微通道流动。许多先前的工作使用荧光粉来产生高温气流。不确定性因具体情况而异。准确的校准对于抑制误差非常重要。在保持高精度的同时开发简单的校准方法或免校准方法是未来工作的一个重要问题。
This review article focuses on the simultaneous particle-based measurement of velocity and temperature. The thermographic PIV with phosphor particles is included in the scope. However, there are many other dye-doped particles that can be used in these methods, some of which are more suitable for measurements of liquid flow and low temperature flow. This review summarized the methods for fabrication, applications, optical properties, and limitations of temperature sensitive particles, and the extensive coverage of the field provided by this review renders it useful as a base for further experimentation. Dopant sensor molecules are also summarized in this review make it possible to fabricate functional particles that are suitable for the aims of an individual researcher. These particles are excited by a UV-laser and several kinds of them can be excited using a common green laser. Several approaches to velocity and temperature measurements, mono-color intensity-based method, the ratiometric method and the lifetime method are explained. The combined methods are limited by velocity conditions; therefore, decoupling the temperature measurement from the velocity measurement is sometimes reasonable. However, combined measurements were also considered in this review. There are many possible sources of error when using these methods; however, the most important factor is the following capacity of the particles, especially in gaseous flow. The deformation of particle images because of the long exposure inherent in the lifetime-based method was discussed quantitatively. Applications of liquid/gas/multiphase flow measurements were introduced. Micro capsules or microbeads are often used for a liquid flow and a microchannel flow. Many previous works use a phosphor for a high temperature gas flow. Uncertainties are different on a case-by-case basis. Accurate calibration is very important in suppressing errors. The development of easy calibration methods or calibration free methods while retaining high accuracy is an important issue in future work.