液氮阵列喷嘴冷却的喷雾干涉仿真研究

张思博; 刘崇; 陈建业; 管王锋; 宫子乔; 谢军龙

doi:10.11949/0438-1157.20260662

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液氮阵列喷嘴冷却的喷雾干涉仿真研究

流体力学与传递现象 | 更新时间：2026-08-13

- 液氮阵列喷嘴冷却的喷雾干涉仿真研究
- Simulation study of spray interference in liquid nitrogen array nozzle cooling
- 化工学报 2026年
- 作者机构：
  
  1.华中科技大学能源与动力工程学院，湖北武汉 430074
  2.民政部一零一研究所，北京 100070
- 作者简介：
  
  张思博（2001—），男，硕士研究生，m202471396@hust.edu.cn
  刘崇（1984—），男，博士，副研究员，liuchong_101s@163.com
- 基金信息：
  
  国家重点研发计划项目(2024YFC3321802)
- DOI：10.11949/0438-1157.20260662
  中图分类号： TK124
- 收稿：2026-05-13，
  
  修回：2026-08-08，
  
  录用：2026-08-13，
- 稿件说明：
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张思博, 刘崇, 陈建业, 等. 液氮阵列喷嘴冷却的喷雾干涉仿真研究[J/OL]. 化工学报, 2026.

ZHANG Sibo, LIU Chong, CHEN Jianye, et al. Simulation study of spray interference in liquid nitrogen array nozzle cooling[J/OL]. CIESC Journal, 2026.
张思博, 刘崇, 陈建业, 等. 液氮阵列喷嘴冷却的喷雾干涉仿真研究[J/OL]. 化工学报, 2026. DOI： 10.11949/0438-1157.20260662.

ZHANG Sibo, LIU Chong, CHEN Jianye, et al. Simulation study of spray interference in liquid nitrogen array nozzle cooling[J/OL]. CIESC Journal, 2026. DOI： 10.11949/0438-1157.20260662.

摘要

为揭示多喷嘴液氮冷却交汇区的喷雾干涉机制，基于Eulerian-Lagrangian框架建立了8喷嘴阵列的全尺寸数值模型，引入局部动量通量比作为量化指标，对比分析了顺排与叉排两种拓扑在35~80mm喷射高度下的流场特征与传热性能。结果表明：在低高度（

≤50mm）时，两种排布均能维持良好均匀性；当高度增至65mm时，顺排阵列交汇区动量通量比增至0.5附近，相邻横流正面碰撞从而诱发向上反流阻断液滴穿透路径，表面温度非均匀度恶化至0.52K；而叉排阵列凭借错位排布构建斜向泄流通道，将动量通量比峰值抑制在0.4以下，表面温度非均匀度降至0.40K。继续升高至80mm时，叉排阵列表面温度非均匀度进一步降至0.20K，传热系数较顺排高出约28%。研究证实，封闭排布会引发动量堆积与排气受限，引入局部动量通量比可有效量化干涉强度，为阵列拓扑优化提供直接判据。

Abstract

To elucidate the spray interference mechanisms within the impingement zones of multi-nozzle liquid nitrogen spray cooling

a full-scale numerical model of an 8-nozzle array was established under the Eulerian-Lagrangian framework. The local momentum flux ratio was introduced as a quantitative metric to characterize the interference intensity. Flow field characteristics and heat transfer performance of both in-line and staggered configurations were compared at nozzle-to-surface distances ranging from 35 to 80 mm. Results indicate that at lower heights (

≤50 mm)

both configurations maintain satisfactory temperature uniformity. As the height increases to 65 mm

the in-line array experiences a sharp rise in momentum flux ratio within the impingement zone

reaching peak values near 0.5. The head-on collision of adjacent crossflows generates a stagnation point and induces upward counterflow

which impedes droplet penetration and elevates the surface temperature non-uniformity to 0.52 K. In contrast

the staggered configuration creates oblique venting channels due to its offset arrangement

suppressing the peak momentum flux ratio below 0.4 and reducing surface temperature non-uniformity to 0.40 K. At a height of 80 mm

the staggered array further lowers surface temperature non-uniformity to 0.20 K while achieving a heat transfer coefficient approximately 28% higher than that of the in-line array. The findings demonstrate that the performance reversal in impingement zones originates from momentum accumulation and restricted venting inherent to closed packing patterns. The introduced momentum flux ratio

provides an effective quantitative descriptor of interference intensity

offering a direct criterion for array topology optimization.

关键词

Keywords

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