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喷气的同质异型流式流水用于泡和滴滴碎片化
Leonel Beckedorff1, Giuseppe C A Caridi1, Alfredo Soldati1
1Institute of Fluid Mechanics and Heat Transfer, TU Wien, 1060 Wien, Austria.
The Review of scientific instruments
|February 12, 2025
概括
我们开发了一种新的流水箱,用于研究多相流. 它的高能耗率有效地分解气泡和水滴,有助于研究流体动力学.
科学领域:
- 流体动力学 流体动力学
- 多相流程 多相流程
- 流研究 流研究
背景情况:
- 研究滴滴和泡泡破裂需要特定的流条件.
- 现有设施可能无法达到必要的高雷诺斯数或能量消散率.
研究的目的:
- 为了介绍一款新的喷气式动流水箱.
- 为了对其流特性进行多相流量研究.
- 为了验证其观察滴滴和泡破裂的能力.
主要方法:
- 设计和建造一个八边形的水平水箱与对立的喷气阵列.
- 使用可调节的喷气速度来产生流.
- 采用3D拉格朗日粒子跟踪来进行流场的表征.
- 使用六个高速摄像头实现时间分辨率可视化.
主要成果:
- 在一个很大的惯性范围内获得了高的泰勒微尺雷诺德数 (O(10^3)).
- 测量的最大流异质度为10%,能量消散率高达0.3 m2/s3.
- 已经证明了足够的能量消耗,可以打破O{1-10毫米) 的气泡和水滴.
- 成功执行了多相流的3D拓重建.
结论:
- 新的流水箱有效地产生适合多相流研究的同质异型流.
- 该设施的高能耗率和大惯性范围与科尔莫戈罗夫-欣泽关于滴滴和泡破裂的理论相一致.
- 先进的成像和重建方法使多相现象的详细分析成为可能.
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