• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Experimental Thermal and Fluid Science: International Journal of Experimental Heat Transfer, Thermodynamics, and Fluid Mechanics >Experimental study of submerged gas jets in liquid cross flow
【24h】

Experimental study of submerged gas jets in liquid cross flow

机译：液体交叉流动浸没气体喷射的实验研究

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Gas jets submerged in the liquid cross flow are prevalent in the nature and essential in numerous industrial applications. The interaction between the gas jet and liquid cross flow is not well characterized for the difficulties in experimental research. In the present work, a new experimental method was designed and the evolution of the gas jet in liquid cross flow was captured by the high speed camera. Five experimental cases with different initial liquid cross flow velocities (0.35 m/s, 0.7 m/s, 1.0 m/s, 1.5 m/s, 2.0 m/s) were performed where the momentum ratio of the initial gas jet to liquid cross flow varies to highlight the effects of the liquid cross flow velocity on the flow Characteristics. The summation and statistical methods were adopted to analyze the experimental sequences, and the results from the two methods showed good agreement. The gas jet morphology and the gas liquid interface were clearly identified from the experimental results, which showed that the gas jet deflected in a less pronounced manner with less unsteadiness generated at the gas liquid interface as the liquid cross flow velocity decreases. The gas jet penetration length in the momentum region was measured and it was found to be severely influenced by the liquid cross flow, and a power relationship was found between the gas jet penetration length and the cross flow velocity. The expansion angle of the gas jet in the upstream was also shown to grow in a power function with the liquid cross flow velocity. The gas jet diameter indicates the ambient liquid entrainments and the gas liquid interface evolution. In the region where the gas jet momentum is dominant, the evolution of the gas jet diameter followed a similar pattern with the submerged gas jets without liquid cross flow. Finally, empirical correlations were developed to predict the characteristic parameters of the submerged gas jet in liquid cross flow.
机译：在液体交叉流中浸没在液体交叉流动中的气体射流在许多工业应用中具有普遍性，并且在许多工业应用中必需。气体射流和液体交叉流动之间的相互作用并不充分地表征实验研究中的困难。在本作工作中，设计了一种新的实验方法，并通过高速相机捕获液体交叉流动中的气体射流的进化。进行五种具有不同初始液体交叉流速的实验情况（0.35 m / s，0.7 m / s，1.0m / s，1.5 m / s，2.0 m / s），其中初始气体射流到液体交叉的动量比流动变化以突出液体交叉流速对流动特性的影响。采用求和和统计方法来分析实验序列，两种方法的结果表明良好的一致性。从实验结果清楚地识别出气体射流形态和气体界面，这表明当液体交叉流速降低时，气体射流以较小的储气液界面产生的不太不稳定。测量动量区域中的气体喷射穿透长度，发现它受液体交叉流动严重影响，并且在气体射流穿透长度和交叉流速之间发现了电力关系。还示出了上游气体射流的膨胀角度，其在具有液体交叉流速的功率函数中生长。气体喷射直径表示环境液体夹带和气液界面进化。在气体射流动量优势的区域中，气体射流直径的进化遵循与浸没的气体喷射类似的图案，没有液体交叉流动。最后，开发了经验相关性以预测液体交叉流动中浸没气体射流的特征参数。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号