几何构型对逆流推力矢量喷管特性影响

刘赵淼; 徐迎丽; 申峰

doi:10.13224/j.cnki.jasp.2014.06.023

几何构型对逆流推力矢量喷管特性影响

doi: 10.13224/j.cnki.jasp.2014.06.023

北京工业大学机械工程与应用电子技术学院, 北京 100124

基金项目:

北京市教委科技计划重点项目（KZ201210005003）

详细信息

作者简介:
刘赵淼（1970- ），女，吉林德惠人，教授，博士，主要从事计算流体力学和微流体力学研究.

中图分类号: V235.15
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- 被引次数: 0
出版历程
- 收稿日期: 2013-03-22
- 刊出日期: 2014-06-28

Geometric configuration on the performance of counterflow thrust vectoring nozzle

College of Mechanical Engineering and Applied Electronics Technology, Beijing University of Technology, Beijing 100124, China

摘要

摘要: 采用数值模拟方法研究了几何构型对逆流推力矢量喷管内部流动结构及性能的影响.研究结果表明：主流未附体时，增大缝宽可提高推力矢量角，但同时却降低了合成推力系数，抽吸二次流流向由同向转变为逆向且流量逐渐增大；增大斜切角可致使推力矢量角减小，合成推力系数先增大后减小.随着斜切角的增大，抽吸二次流流向由逆向逐渐转变为同向二次流，流量比在2%以内，且呈先减小后增大趋势.
- 逆流 /
- 矢量喷管 /
- 缝宽 /
- 斜切角 /
- 推力系数
Abstract: Numerical simulation was applied to study internal flow structure and performance of counterflow thrust vectoring nozzle with geometric configuration. Results indicate that thrust vectoring angle increased with the increasing of slot height and terminal angle when the jet was not attached to the collar, while resultant thrust ratio decreased. Suction second flow shifted from coflow to counterflow, while the mass flow rate increased. The thrust vectoring angle decreased with the increase of terminal angle; resultant thrust ratio firstly increased but then decreased. During the procedure of increasing terminal angle, suction second flow shifted from counterflow to coflow, and mass flow rate was less than 2%, but decreased and then increased.
- counterflow /
- vectoring nozzle /
- slot height /
- terminal angle /
- thrust coefficient

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参考文献(15)

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