双型线矩形超音速喷嘴的设计及仿真研究

张影; 宋华; 杨健; 高明昕; 汪洋; 李文斌

doi:10.13433/j.cnki.1003-8728.20190277

双型线矩形超音速喷嘴的设计及仿真研究

doi: 10.13433/j.cnki.1003-8728.20190277

张影^1,,
宋华^1, ,,
杨健¹,
高明昕¹,
汪洋¹,
李文斌²

1.
辽宁科技大学机械工程与自动化学院, 辽宁鞍山 114051
2.
鞍钢集团钢铁研究院, 辽宁鞍山 114009

基金项目:

辽宁省自然科学基金项目 20180550572

详细信息

作者简介:
张影(1994-), 硕士研究生, 研究方向为超音速流场、结构设计, 18841207927@163.com

通讯作者:
宋华, 教授, 博士生导师, songhua88@126.com

中图分类号: TB552;TH122
计量
- 文章访问数: 194
- HTML全文浏览量: 62
- PDF下载量: 18
- 被引次数: 0
出版历程
- 收稿日期: 2019-05-30
- 刊出日期: 2020-09-01

Designing and Simulating a Double-line Rectangular Supersonic Nozzle

1.
School of Mechanical Engineering and Automation, University of Science and Technology LiaoNing, Liaoning Anshan 114051, China
2.
Ansteel Iron & Steel Research Institutes, Liaoning Anshan 114009, China

摘要

摘要: 为提高超音速设备对工件处理的均匀性，提出了一种双型线矩形超音速喷嘴。同时基于超音速喷管设计理论，分别对该矩形超音速喷嘴的两条型线进行设计，以获得相应的型线方程。建立了双型线矩形超音速喷嘴的流热耦合有限体积模型，进而对双型线矩形超音速喷嘴的入口压力和出口马赫数对喷嘴流场的影响展开分析。结果表明：双型线矩形超音速喷嘴的速度流场既能够达到设计的马赫数又满足均匀性要求，且能够使喷嘴出口得到横截面形状为矩形的流场，并分别总结了入口压力和出口马赫数对喷嘴流场的影响规律。
- 超音速喷嘴 /
- 矩形 /
- 双型线 /
- CFD
Abstract: In order to improve the uniformity of workpiece processing for supersonic equipment, a double-line rectangular supersonic nozzle is proposed. Based on the design theory of supersonic nozzle, the constrained and expanded sections of the double-line rectangular supersonic nozzle are separately designed to obtain their corresponding line equations. The flow-thermal coupling finite volume model of the double-line rectangular supersonic nozzle is established with the compressible ideal gas state equation. Then the influence on the inlet pressure of the double-line rectangular supersonic nozzle and the influence of the velocity of the outlet on the flow field are simulated. The influence of inlet pressure and outlet Mach number on the flow field are also simulated respectively. The simulation results show that at the velocity, the flow field of the double-line rectangular supersonic nozzle not only achieves the designed Mach number and the uniformity requirements but also possesses a rectangular cross section.
- double-line rectangular supersonic nozzle /
- flow field /
- computational fluid dynamics /

HTML全文

图 1 Crown解析设计法原理图

下载: 全尺寸图片幻灯片

图 2 双型线矩形超音速喷嘴型腔模型

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图 3 矩形超音速喷嘴1/4模型网格划分

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图 4 喷嘴内部流场速度云图

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图 5 入口压力对喷嘴内流场的影响

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图 6 Ma分别为2、3、4的超音速喷嘴速度云图

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图 7 喷嘴自由射流速度云图

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表 1 不同马赫数下的喷嘴边界层厚度

马赫数Ma	宽边边界层厚度/mm	窄边边界层厚度/mm
2	0.962	0.967
3	1.543	1.792
4	1.798	3.115

下载: 导出CSV

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