Influence Factors of Light-Small Supersonic Fluidic Element on Performance

被引：0

作者：

Sun N. ^{[1
]}

Wang J.-X. ^{[1
]}

Ma X.-J. ^{[1
]}

Niu L. ^{[1
]}

机构：

[1] Shanghai Space Propulsion Technology Research Institute, Shanghai

来源：

Tuijin Jishu/Journal of Propulsion Technology | 2019年 / 40卷 / 03期

关键词：

Jet control; Light-small; Numerical calculation; Switching performance;

D O I：

10.13675/j.cnki.tjjs.180066

中图分类号：

O35 [流体力学];

学科分类号：

080103 ; 080704 ;

摘要：

In order to optimize the switching performance of the light-small supersonic fluidic element, the parameters of the flow channel are studied. The rule is obtained through the numerical calculation of the parameters of the flow channel. The results show that the control port diameter, the expansion diameter and the splitter distance are the key factors, furthermore, there is the disciplinarian and limiting value of these parameters. If the limiting value is exceeded, the fluidic element will not be switched. However, the influence of the divergence angle is not evident. Combining with the results of numerical calculation, the fluidic element is manufactured. The dimensions diameter is smaller than 0.1m, and the weight is less than 2.5kg. The experimental results show that this light-small supersonic fluidic element can be switched quickly by the hot gas. And the average switching time is about 6.6ms. © 2019, Editorial Department of Journal of Propulsion Technology. All right reserved.

引用

页码：525 / 531

页数：6

共 8 条

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