液液两相湍流中的统计特性分析

苏敬宏; 张亿宝; 孙超; 王军武

doi:10.11949/0438-1157.20251370

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液液两相湍流中的统计特性分析

流体力学与传递现象 | 更新时间：2026-08-21

- 液液两相湍流中的统计特性分析
- Statistical characteristic analysis in turbulent emulsions
- 化工学报 2026年77卷第7期页码：3786-3796
- 作者机构：
  
  1.中国石油大学（北京）机械与储运工程学院，北京 102249
  2.清华大学能源与动力工程系，热科学与动力工程教育部重点实验室，燃烧能源中心，新基石科学实验室，北京 100084
  3.清华大学航天航空学院工程力学系，北京 100084
  4.中国石油大学（北京）深层地热富集机理与高效开发全国重点实验室，北京 102249
- 作者简介：
  
  苏敬宏（1992—），男，博士，讲师，jhsu@cup.edu.cn
  孙超（1978—），男，博士，教授，chaosun@tsinghua.edu.cn
  王军武（1978—），男，博士，研究员，jwwang@cup.edu.cn
- 基金信息：
  
  国家自然科学基金项目(12402299;12588201;12402298);中国石油大学（北京）科研基金项目(2462025YJRC012)
- DOI：10.11949/0438-1157.20251370
  中图分类号： TQ 021.1
- 收稿：2025-12-05，
  
  修回：2026-01-13，
  
  网络首发：2026-08-20，
  
  纸质出版：2026-07-25
- 稿件说明：
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苏敬宏, 张亿宝, 孙超, 王军武. 液液两相湍流中的统计特性分析[J]. 化工学报, 2026, 77(7): 3786-3796

SU Jinghong, ZHANG Yibao, SUN Chao, WANG Junwu. Statistical characteristic analysis in turbulent emulsions[J]. CIESC Journal, 2026, 77(7): 3786-3796
苏敬宏, 张亿宝, 孙超, 王军武. 液液两相湍流中的统计特性分析[J]. 化工学报, 2026, 77(7): 3786-3796 DOI： 10.11949/0438-1157.20251370.

SU Jinghong, ZHANG Yibao, SUN Chao, WANG Junwu. Statistical characteristic analysis in turbulent emulsions[J]. CIESC Journal, 2026, 77(7): 3786-3796 DOI： 10.11949/0438-1157.20251370.

摘要

两种互不相溶的液体相互掺混形成的液液两相湍流系统在自然界中广泛存在，并在石油与化工等领域具有重要应用。两相界面和湍流流动之间存在多尺度的耦合作用，这使得两相湍流内的流体动力学行为比单相湍流更为复杂。采用界面解析的流体体积法对泰勒-库埃特系统内的液液两相湍流进行三维直接数值模拟，研究不同流体性质的离散液滴对湍流统计特性的影响。研究发现，当两相具有相同密度与黏度时，离散液滴将增强湍流脉动的角动量输运能力并对湍流脉动分布产生调制，具体表现为增强内外圆柱附近湍流脉动而削弱远离内外圆柱区域的湍流脉动。离散液滴密度的降低以及离散液滴黏度的进一步降低都倾向于削弱湍流脉动的强度和角动量输运能力。而对于泰勒涡结构，离散液滴的存在始终倾向于削弱泰勒涡的角动量输运能力和强度。相关研究结果有助于深入理解液液两相湍流中离散相对湍流的影响。

Abstract

Turbulent emulsions refer to dispersion systems formed by two immiscible liquid components (

oil and water) within turbulent flows. These systems are widely encountered in nature and have significant applications in the petroleum and chemical industries. Turbulent flows contain many strongly coupled degrees of freedom

and there are multiscale coupling effects between the two-phase interface and turbulent flow

making turbulent emulsions more complex compared to single-phase turbulence. In this paper

three-dimensional direct numerical simulations of turbulent emulsions within the Taylor-Couette system are carried out using the interface-resolved volume-of-fluid method to investigate the effect of dispersed droplets with different fluid properties on the turbulent characteristics. The study reveals that when both phases have the same density and viscosity

dispersed droplets enhance the angular momentum transport capacity of turbulent fluctuations and modulate the distribution of these fluctuations. Specifically

this manifests as enhanced turbulent fluctuat

ions near the inner and outer cylinders while weakening those far from them. A reduction in dispersed-phase density and a further reduction in dispersed-phase viscosity both tend to weaken the angular momentum transport capacity and intensity of turbulent fluctuations. For the Taylor vortex

the presence of dispersed droplets consistently tends to weaken both its intensity and angular momentum transport capability. The related findings contribute to a deeper understanding of the effect of dispersed phase in turbulent emulsions.

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references

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