[an error occurred while processing this directive] [an error occurred while processing this directive] [an error occurred while processing this directive]
[an error occurred while processing this directive]

弹箭与制导学报 >

2021 , Vol. 41 >Issue 1: 8 - 12

DOI: https://doi.org/10.15892/j.cnki.djzdxb.2021.01.002

喷嘴结构对某防暴喷射管内流场影响的数值模拟

  • 赵法栋 1 ,
  • 张燕丽 2 ,
  • 庄弘炜 1 ,
  • 吴一丹 1
展开
  • 1 武警工程大学装备管理与保障学院,西安 710086
  • 2 武警工程大学基础部,西安 710086

赵法栋(1986—),男,山东肥城人,讲师,硕士,研究方向:数值模拟、装备理论与技术。

收稿日期: 2020-02-12

  网络出版日期: 2025-02-11

基金资助

武警部队装备研发项目(WK2017-09)

武警工程大学创新团队科学基金(KYTD201905)

收起

Numerical Simulation of the Effect of Nozzle Structure on Internal Flow Field in an Anti-riot Pipe

  • ZHAO Fadong 1 ,
  • ZHANG Yanli 2 ,
  • ZHUANG Hongwei 1 ,
  • WU Yidan 1
Expand
  • 1 College of Equipment Management and Support,Engineering University of PAP,Xi’an 710086, China
  • 2 Base Department, Engineering University of PAP,Xi’an 710086, China

Received date: 2020-02-12

  Online published: 2025-02-11

Fold

摘要

为深入分析喷嘴结构对某防暴喷射管内流场的影响,采用动网格技术对其冲击挤压过程进行了大涡模拟。结果表明:管内流动能量损失主要是由喷嘴结构突变和压强差引起的涡流损失;锥直形喷嘴收缩角越小,涡流损失越小,出口平均速度越快,能量利用率越高;在喷嘴总长度和入口收缩段长度不变的条件下,等变速喷嘴能量损耗最低,速度和压强分布最均匀、出口平均速度最高,性能最优。所得结论对喷嘴结构优化具有一定的指导意义。

关键词： 防暴喷射管; 挤压式流动; 脉冲射流; 喷嘴结构

本文引用格式

赵法栋 , 张燕丽 , 庄弘炜 , 吴一丹 . 喷嘴结构对某防暴喷射管内流场影响的数值模拟[J]. 弹箭与制导学报, 2021 , 41(1) : 8 -12 . DOI: 10.15892/j.cnki.djzdxb.2021.01.002

Abstract

To analyze the influence of nozzle structure on internal flow field in a anti-riot pipe, the large eddy simulation of the percussion flow process is carried out by using moving grid technology. The results show that the energy loss is mainly caused by the change of nozzle structure and the pressure difference. The smaller the contraction anglecontraction angles of the cone straight nozzle, the smaller the eddy loss, the faster the average outlet velocity, the higher the energy utilization ratio. Under the condition that the total length of the nozzle and the length of the inlet contraction section remain the same, the energy loss of the equalspeed change nozzle is the lowest, its velocity and pressure distribution is the most uniform and the outlet average velocity is the highest, and the performance is the best. The conclusion could provide guidance for nozzle structure optimization.

Key words： anti-riot pipe; percussion flow; impulse jet; nozzle structure

[an error occurred while processing this directive]

参考文献

原文顺序 | 文献年度倒序 | 文中引用次数倒序
[1]
赵法栋, 张燕丽, 庄弘炜. 基于多物理场耦合的某型防暴喷射管喷射过程数值模拟[J]. 兵器装备工程学报, 2020, 41(8):58-62.

[2]
赵金国, 何伟. 具有旋芯的高效雾化喷嘴仿真和实验研究[J]. 机械设计与制造, 2017(3):137-140.

[3]
GUHA A, BARRON R M, BALACHANDAR R. Num erical simulation of high-speed turbulent water jets in air[J]. Journal of Hydraulic Research, 2010, 48(1): 119-124.

[4]
张德荣, 吴思梦. 基于FLUENT的水力喷砂射孔器喷嘴优化设计[J]. 石油机械, 2017, 45(12):71-77.

[5]
刘巨保, 徐世博, 娄永. 基于CFX的磨料水射流喷嘴的流场分析[J]. 石油矿场机械, 2013, 42(4):40-44.

[6]
汤积仁, 卢义玉, 欧阳梦迪, 等. 水力喷射压裂新型喷嘴设计优化及性能评价[J]. 中国石油大学学报(自然科学版), 2015, 39(1):72-78.

[7]
弓永军, 郭臣, 侯交义, 等. 基于Fluent的脉冲射流喷嘴的全尺寸结构优化[J]. 液压与气动, 2014(11):32-35.

DOI

[8]
高传昌, 黄丹, 马建娇, 等. 喷嘴几何参数对自激吸气脉冲射流性能影响的正交试验[J]. 排灌机械工程学报, 2016, 34(6):525-531.

[9]
ZIMMERMAN W B J, 中仿科技公司. COMSOL Multiphysics有限元法多物理建模与分析[M]. 北京: 人民交通出版社, 2007:143-159.

[10]
汪崎生. 用数值网格变换法求解等变速喷嘴的有势流场[J]. 江汉石油学院学报, 1989, 11(1):60-71.

[11]
何枫, 谢峻石, 杨京龙. 喷嘴内部流道型线对射流流场的影响[J]. 应用力学学报, 2001, 18(4):114-119.

Options
文章导航

/

〈 〉

[an error occurred while processing this directive]