温度对液态正庚烷喷射特性影响的PIV实验

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温度对液态正庚烷喷射特性影响的PIV实验

田静¹，杜丽超¹，周伟星^2a，吴传伟^2b，蓝振仲^2b

（1.taptap下载安装安卓航空工程学院，天津300300；2.哈尔滨工业大学a.基础与交叉科学研究院；b.能源科学与工程学院，哈尔滨150001）

收稿日期:2017-04-12 修回日期:2017-05-10 出版日期:2018-02-24 发布日期:2018-01-17
作者简介:田静（1972—），女，辽宁兴城人，教授，博士，研究方向为飞机液压系统.

Influence of temperature on n-heptane liquid injection characteristics through PIV experiment

TIAN Jing¹, DU Lichao¹, ZHOU Weixing^2a, WU Chuanwei^2b, LAN Zhenzhong^2b

(1. College of Aeronautical Engineering, CAUC, Tianjin 300300, China; 2a. Academy of Fundamental and Interdisciplinary Sciences;
2b. Energy Science and Engineering, Harbin Institute of Technology, Harbin 150001, China)

Received:2017-04-12 Revised:2017-05-10 Online:2018-02-24 Published:2018-01-17

摘要/Abstract

摘要： 基于粒子图像测速仪（PIV）实验系统研究了正庚烷在不同温度、不同压力下的射流特性，用于指导发动机燃油供给系统设计。通过对正庚烷在不同喷射压力、不同温度下射流宏观图像的拍摄和分析，研究了正庚烷在温度不断提高的条件下射流特性的变化规律。结果表明院液态正庚烷喷射特性中，锥角最大值随压力增大而增加;随着温度的不断提高，射流锥角、射流最大宽度呈现先增加后减小的规律。在实验中得到院当射流锥角明显增大，压力小于0.5 MPa 时，温度随压力增大而升高;压力大于0.5 MPa 时，温度随压力增大而降低。

关键词: 喷射特性, 粒子图像测速仪, 锥角, 最大宽度

Abstract: N-heptane injection characteristics under different temperatures and pressures is studied basing on PIV (particle image velocimetry)experimental system and is used for the design of engine fuel supply system. Under the condition of temperature rising, macro images have been taken at different temperatures and injection pressures forthestudyofn-heptanejetcharacteristics.Resultsshowthatamongtheliquid n-heptaneinjection characteristics,maximum spray-cone angle increases with increasing pressure; while, with the increasing temperature, spraycone angle and injection maximum width first increase and then decrease. In the experiment, when the pressure is less than 0.5 MPa, temperature of injection cone increases significantly with increasing pressure. When the pressure is greater than 0.5 MPa, the temperature of this moment decreases with increasing pressure.

Key words: injection characteristics, PIV, cone angle, maximum width

中图分类号:

V231.2
TH137

田静，杜丽超，周伟星，吴传伟，蓝振仲. 温度对液态正庚烷喷射特性影响的PIV实验[J]. taptap下载安装安卓学报.

TIAN Jing, DU Lichao, ZHOU Weixing, WU Chuanwei, LAN Zhenzhong. Influence of temperature on n-heptane liquid injection characteristics through PIV experiment[J]. .

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