Injection characteristics of near critical and supercritical kerosene into quiescent atmospheric environment
Injection characteristics of near critical and supercritical kerosene into quiescent atmospheric environment
复制标题
近临界和超临界煤油注入静止大气环境的特性
DOI：
10.1016/j.fuel.2018.08.048
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发表时间：
2019
期刊：
影响因子：
7.4
通讯作者：
Xu Quanhong
中科院分区：
文献类型：
--
作者：
Gao Wei;Lin Yuzhen;Hui Xin;Zhang Chi;Xu Quanhong
在近临界和超临界条件下，对RP-3航空煤油喷入静止大气环境进行了实验研究，着重研究了喷入温度和压力对射流激波结构和相变特性的影响。近场激波/喷流结构的可视化使用纹影成像。结果表明，超临界RP-3在临界温度附近喷射时，燃料发生凝结。在超临界喷射条件下，观察到理想气体状膨胀和内部激波结构。RP-3替代物用于确定热力学相图，以揭示注射过程中的相变。进一步介绍和讨论了马赫盘的特性。结果表明，随着喷射压力的增加，马赫盘的位置和尺寸以及射流扩张角增大。此外，通过计算RP-3替代气体和N2的比热比和压缩因子，分析了两者在马赫盘直径和射流膨胀角方面的差异，结果表明压缩因子是导致RP-3替代气体射流结构偏离理想气体N2射流结构的主要因素。
The injection of RP-3 aviation kerosene at near and above critical conditions into a quiescent atmospheric environment is experimentally investigated with special emphasis on the effects of injection temperature and pressure on the jet characteristics of shock structure and phase transition. Visualization of the near-field shock/jet structure is performed using Schlieren imaging. Results show that fuel condensation occurs when supercritical RP-3 is injected at near critical temperature. At the supercritical injection conditions investigated, ideal-gas-like expansion and internal shock structures are observed. A RP-3 surrogate is used to determine the thermodynamic phase diagram to reveal the phase transition during the injection processes. The characteristics of the Mach disk are further presented and discussed. It is found that the location and size of the Mach disk as well as jet expansion angle increase with increasing injection pressure. Furthermore, specific heat ratios and compressibility factors of RP-3 surrogate and N2are evaluated to analyze their differences in Mach disk diameter and jet expansion angle; it is shown that the compressibility factor is the primary factor that deviates the jet structure of RP-3 from that of ideal-gas N2.
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DOI：
10.1016/j.ijheatmasstransfer.2014.08.081
发表时间：
2014-12
影响因子：
5.2
作者：
L. Qiu;R. Reitz
通讯作者：
L. Qiu;R. Reitz
DOI：
10.2514/6.1995-382
发表时间：
1995-01
期刊：
--
影响因子：
--
作者：
P. Wu;Tzong H. Chen;A. Nejad;C. Carter
通讯作者：
P. Wu;Tzong H. Chen;A. Nejad;C. Carter
高温单孔汽油喷雾的喷雾发展及液滴特性
影响因子：
7.4
作者：
Liu Yi;Pei Yiqiang;Peng Zhijun;Qin Jing;Zhang Yan;Ren Yuan;Zhang Miao
通讯作者：
Zhang Miao
影响因子：
4.2
作者：
T. Doungthip;J. Ervin;A. Williams;J. Bento
通讯作者：
T. Doungthip;J. Ervin;A. Williams;J. Bento
影响因子：
2.9
作者：
P. Wu;M. Shahnam;K. Kirkendall;C. Carter;A. Nejad
通讯作者：
P. Wu;M. Shahnam;K. Kirkendall;C. Carter;A. Nejad