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首页> 外文期刊>Experiments in Fluids: Experimental Methods and Their Applications to Fluid Flow >Refractive index and solubility control of para-cymene solutions for index-matched fluid-structure interaction studies
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Refractive index and solubility control of para-cymene solutions for index-matched fluid-structure interaction studies

机译：番石榴花溶液的折射率和溶解度控制，用于折射率匹配的流固耦合研究

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摘要

To deploy optical diagnostics such as particle image velocimetry or planar laser-induced fluorescence (PLIF) in complex geometries, it is beneficial to use index-matched facilities. A binary mixture of para-cymene and cinnamaldehyde provides a viable option for matching the refractive index of acrylic, a common material for scaled models and test sections. This fluid is particularly appropriate for large-scale facilities and when a low-density and low-viscosity fluid is sought, such as in fluid-structure interaction studies. This binary solution has relatively low kinematic viscosity and density; its use enables the experimentalist to select operating temperature and to increase fluorescence signal in PLIF experiments. Measurements of spectral and temperature dependence of refractive index, density, and kinematic viscosity are reported. The effect of the binary mixture on solubility control of Rhodamine 6G is also characterized.
机译：要在复杂的几何结构中部署诸如粒子图像测速法或平面激光诱导的荧光（PLIF）之类的光学诊断程序，使用折射率匹配的设备是有益的。对-苏木精和肉桂醛的二元混合物为匹配丙烯酸酯的折射率提供了可行的选择，丙烯酸酯是比例模型和测试部分的常用材料。这种流体特别适用于大型设施，以及在寻求低密度和低粘度流体时，例如在流固耦合研究中。这种二元溶液的运动粘度和密度较低。它的使用使实验人员能够选择工作温度并增加PLIF实验中的荧光信号。报道了光谱和温度对折射率，密度和运动粘度的依赖性的测量。还描述了二元混合物对罗丹明6G溶解度控制的影响。

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