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相关概念视频

Turbulent Flow: Problem Solving01:09

Turbulent Flow: Problem Solving

129
Carbonation is a process used to dissolve carbon dioxide gas in a liquid, commonly used in the production of carbonated beverages. Achieving efficient carbonation requires careful control of temperature, pressure, and flow conditions. By adjusting these parameters, carbonation efficiency can be maximized, producing a higher concentration of CO2 in the liquid.
Temperature is a key factor in CO2 solubility. In this case, the CO2 gas and the liquid are cooled to 20°C. Lower temperatures...
129

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一种基于重复性的新方法,用于研究泡柱反应堆中的多相流动力学.

Ritam Pal1, Samriddhi Ganguly2, Somnath De3

  • 1Department of Mechanical Engineering, The Pennsylvania State University, University Park, Pennsylvania 16802, USA.

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一种新的基于重复性的方法分析了泡柱反应堆中的多相流. 这种方法揭示了基于空气流速的不同流动模式和过渡,改善了复杂流体动态的预测.

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科学领域:

  • 化学工程是化学工程的重要组成部分.
  • 流体动力学 流体动力学
  • 非线性动力学是一种非线性动力学.

背景情况:

  • 气泡柱反应堆中的多相流在化学工业中至关重要.
  • 气泡水力学呈现复杂的非线性,使得建模和预测具有挑战性.
  • 现有的方法与由泡相互作用产生的复杂的时空模式作斗争.

研究的目的:

  • 引入一种计算效率高,基于复制性的方法来分析多相流.
  • 将这种新的方法应用于来自泡柱反应堆的实验数据.
  • 将新方法的性能与传统的复发技术进行比较.

主要方法:

  • 使用状态向量的角分离开发基于复发的方法.
  • 通过高速成像获得的实验多相流量数据的实施.
  • 使用基准问题的传统方法对复发图进行比较.

主要成果:

  • 发现了从高复发到低复发的过渡,随着空气流速的增加.
  • 观察了随着空气流速的减少而增加的确定性.
  • 基于确定性和层次性,确定了三个不同的流动模式 (泡,中间流,流).

结论:

  • 新的重复性方法有效地描述了泡列中的多相流动动力学.
  • 空气流速显著影响空间气泡分布,影响流动的复杂性.
  • 该方法为区分气泡流和流流程提供了定量基础.