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首页> 外文期刊>Applied thermal engineering: Design, processes, equipment, economics >Effect of the nozzle arrangement of atomization equipment in icing cloud simulation system on the velocity field of water droplets and liquid water content distribution
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Effect of the nozzle arrangement of atomization equipment in icing cloud simulation system on the velocity field of water droplets and liquid water content distribution

机译：雾化设备喷嘴布置在冰云模拟系统对水滴的速度场和液体水含量分布中的影响

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摘要

The study of reproducing high altitude icing environment based on the icing cloud simulation system has gradually become a concern for researchers. They found that the parameters of water droplets were one of the most critical factors affecting the state of icing. However, the influence of nozzle arrangement on droplet parameters in the icing cloud simulation system is usually neglected. By reprogramming the software FLUENT, this study carried out a simulation analysis on the influence of nozzle arrangement in the icing cloud simulation system. Four user-defined functions were added to FLUENT to modify the vaporization law, so as to get more accurate results. A model of the atomization equipment in an ice cloud simulation system was developed and successfully validated with the parameter of ice shape and maximum ice thickness on the test rod. The error of maximum ice thickness is only 2.6%, and the maximum deviation and mean deviation are 1.13 mm and 0.68 mm, respectively. The homogeneity of water droplet distribution is proposed and defined, and the calculation method of the degree of homogeneity for water droplet distribution is given. The most reasonable nozzle arrangement in this study with the maximum degree of homogeneity of 78.32% and a spreading area of 14.67% of the total cross-section area is determined. This study shows certain reference significance for realizing a more uniform velocity field of water droplets and liquid water content distribution in the future.
机译：基于结冰云模拟系统再现高海拔锦冰环境的研究逐渐成为研究人员的担忧。他们发现水滴的参数是影响结冰状态的最关键因素之一。然而，通常忽略了喷嘴布置对冰布仿真系统中液滴参数的影响。通过重新编程软件流畅，本研究对喷嘴布置在结冰仿真系统中的影响进行了仿真分析。添加了四个用户定义的功能，以便流利以修改汽化法，以便获得更准确的结果。开发并成功验证了冰云模拟系统中的雾化设备模型，并在试杆上的冰形和最大冰厚度验证。最大冰厚度的误差仅为2.6％，最大偏差和平均偏差分别为1.13 mm和0.68mm。提出和定义了水液滴分布的均匀性，给出了水液滴分布的均匀性的计算方法。该研究中最合理的喷嘴布置具有78.32％的最大均匀度，并且确定了总横截面区域的最大均匀性和14.67％的扩散区域。该研究表明了在未来实现更均匀的水滴和液体含水量分布的速度场的一定的参考意义。

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