Analysis of Micro Continuous Water Jet Based on Numerical Modelling and Flow Monitoring
Analysis of Micro Continuous Water Jet Based on Numerical Modelling and Flow Monitoring
复制标题
基于数值模拟和流量监测的微连续水射流分析
DOI：
10.1007/978-3-319-99353-9_16
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发表时间：
2018
期刊：
影响因子：
--
通讯作者：
F. Pude
中科院分区：
文献类型：
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作者：
M. Zeleňák;Z. Ríha;K. Souček;F. Pude
本文讨论了数值模拟、计算机断层扫描和光学诊断技术在连续微水射流行为研究中的应用。主要重点是圆形喷嘴及其出口内高速水射流产生的数值模拟。理论研究是基于从计算机断层扫描接收到的喷嘴 3D 几何形状进行的。该模型通过流量监测和可视化技术进行了实验验证。为了进行实验测试，设计了闭合水回路。应用粒子跟踪测速法、激光诱导荧光法和阴影成像法以及荧光播种粒子来测定射流速度场。进行了一系列实验来测量流动条件。论文描述了实验中使用的基本方法和原理。基于数值建模、可视化和监测的微观CWJs流动的结果和分析显示出理论和实际测试的良好一致性。
The paper deals with application of numerical modelling, computed tomography and optical diagnostic techniques for study of continuous micro water jet behaviors. The main emphasis is placed on numerical modelling of high speed water jet generation inside a circular nozzle and its outlet. The theoretical studies are performed based on the 3D geometry of nozzle received from the computed tomography. The models are experimentally verified by flow monitoring and visualization techniques. For the purpose of experimental testing, a closed water circuit was designed. The methods of Particle Tracking Velocimetry, Laser Induced Fluorescence and Shadowgraphy together with fluorescent seeding particles were applied for determination of jet velocity fields. A series of experiments was conducted to measure the flow conditions. Basic methods and principles used in the experiments are described in the paper. The results and analyses of the micro CWJs flow based on numerical modelling, visualization and monitoring show very good conformity of theoretical and practical tests.