折射率匹配技术和PLIF40年均流量测量的比较
Yago Rivera1, Dorian Bascou2, David Blanco1
1IIE Instituto de Ingeniería Energética, Universitat Politécnica de Valencia, 46022 Valencia, Spain.
Sensors (Basel, Switzerland)
|April 13, 2024
概括
这项研究比较了折射率匹配 (RIM) 和非RIM平面激光诱导光 (PLIF) 用于分析环状两相流. 这两种方法都能准确地描述液膜的特征,误差在10%以内.
科学领域:
- 流体动力学 流体动力学
- 热量和质量转移是热量和质量转移.
- 光学测量技术的使用
背景情况:
- 环状两相流对于热量和质量转移至关重要.
- 在这种流动中描述液体膜对于理解界面现象至关重要.
- 像平面激光诱导光 (PLIF) 这样的现有方法面临着折射和反射等光学挑战.
研究的目的:
- 调查和比较环状两相流量分析的非侵入性技术.
- 评估折射率匹配 (RIM) 在减轻PLIF中的光学挑战方面的有效性.
- 用不同的PLIF配置来定量和定性地评估液体薄膜特性.
主要方法:
- 使用了一种实验性的环状流量装置.
- 采用了三种配置:PLIF RIM90,PLIF RIM40和PLIF nRIM40. 这三种配置均可使用.
- 测量的主要液膜变量:平均薄膜厚度,干扰波高度和频率.
主要成果:
- 这三种方法均为液体薄膜的表征提供了可比的结果.
- 分析变量的微小偏差被观察到,而不是由于该技术.
- 所有方法的估计误差最多为10%,平均约为8%.
结论:
- 折射率匹配 (RIM) 结合平面激光诱导光 (PLIF) 是用于环状双相流分析的可行技术.
- 经过测试的PLIF配置显示了可接受的准确性,用于描述液体薄膜.
- 这些发现支持使用这些非侵入性光学技术来研究双相流中的界面现象.
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