Simplified analytical models for performance prediction of valveless pulsejet

被引：0

作者：

Wei, Tao ^{[1
]}

Wu, Xiao-Song ^{[1
]}

Cai, Wen-Xiang ^{[1
]}

机构：

[1] Department of Aeronautics and Astronautics, School of Mechanical Engineering, Nanjing University of Science and Technology, Nanjing 210094, China

来源：

Hangkong Dongli Xuebao/Journal of Aerospace Power | 2012年 / 27卷 / 01期

关键词：

Forecasting - Analytical models - Compression ratio (machinery);

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The simplified physical and mathematical models of the working process in valveless pulsejet based on the analysis of such engine cycle were proposed. The flow principle of combustor of charging process and the relationship of the mean velocity of discharge with thermodynamic parameters and combustor pressure were achieved, then the equations of the operation frequency and mean thrust were given. The results show that non-dimensional mean velocity of discharge increases with the increase of the compression ratio, and tendency is mitigated; the errors between the results of operation frequency and mean thrust models and experimental data are less than 10% and ±17%; in addition, the equation of thrust is suitable for valved pulsejet. The study shows that presented simplified analytical models are reasonable, and the accuracy is acceptable. The conclusions offer instruction for designing, experiment, predicting the performance and optimization method of valveless pulsejet.

引用

页码：225 / 232