矢量发动机已成!!!

来源:百度文库 编辑:超级军网 时间:2024/03/29 16:19:22
合成射流激励器控制喷管矢量研究
刘贺,董金钟,伍耐明,赵新军,刘畅
(北京航空航天大学 能源与动力工程学院, 北京 100191)

摘要:利用试验方法研究合成射流激励器对喷管气流矢量控制的作用效果,证明在恰当条件下喷管气流矢量角可改变30°.试验结果证实,喷管射流角度的改变不但与激励器工作参数和喷管流动速度、流量相关,同时还与激励器工作时产生的向下游迁移的“涡对”对周围流体“卷吸”形成的低压卷吸场有关,并与卷吸涡对与主流自由剪切层之间的耦合作用有着密切联系.以上可以认为是喷管矢量受控的机理.
关键词:合成射流;激励器;膜片;喷管;矢量控制
中图分类号:V2113       文献标识码:A


Investigation of nozzle vector control using synthetic jet actuator
LIU He, DONG Jinzhong, WU Naiming, ZHAO Xinjun, LIU Chang
(School of Jet Propulsion,
Beijing University of Aeronautics and Astronautics, Beijing 100191,China)
Abstract:Novel fluidic actuators based on synthetic jet technology were used to experimentally investigate the effectiveness on the flow vector control. In the proper conditions, the primary jets vector could change at angles exceeding 30 degrees. It is proved that the alteration of flow vector angle is correlated with not only the actuator parameter, the flow velocity and flow rate, but also with the downstream wrap sucking field with low pressure, which is formed by the action of “vortex pair” during the actuator operating. It is also closely correlated with the coupling effect between the vortex pair and the free shearing layer. This is treated as the mechanism of vector control.
Key words:synthetic jet; actuator; membrane; nozzle; vector control合成射流激励器控制喷管矢量研究
刘贺,董金钟,伍耐明,赵新军,刘畅
(北京航空航天大学 能源与动力工程学院, 北京 100191)

摘要:利用试验方法研究合成射流激励器对喷管气流矢量控制的作用效果,证明在恰当条件下喷管气流矢量角可改变30°.试验结果证实,喷管射流角度的改变不但与激励器工作参数和喷管流动速度、流量相关,同时还与激励器工作时产生的向下游迁移的“涡对”对周围流体“卷吸”形成的低压卷吸场有关,并与卷吸涡对与主流自由剪切层之间的耦合作用有着密切联系.以上可以认为是喷管矢量受控的机理.
关键词:合成射流;激励器;膜片;喷管;矢量控制
中图分类号:V2113       文献标识码:A


Investigation of nozzle vector control using synthetic jet actuator
LIU He, DONG Jinzhong, WU Naiming, ZHAO Xinjun, LIU Chang
(School of Jet Propulsion,
Beijing University of Aeronautics and Astronautics, Beijing 100191,China)
Abstract:Novel fluidic actuators based on synthetic jet technology were used to experimentally investigate the effectiveness on the flow vector control. In the proper conditions, the primary jets vector could change at angles exceeding 30 degrees. It is proved that the alteration of flow vector angle is correlated with not only the actuator parameter, the flow velocity and flow rate, but also with the downstream wrap sucking field with low pressure, which is formed by the action of “vortex pair” during the actuator operating. It is also closely correlated with the coupling effect between the vortex pair and the free shearing layer. This is treated as the mechanism of vector control.
Key words:synthetic jet; actuator; membrane; nozzle; vector control
我朝威武。。。
暴总又爆尿
30°.
这个机制是不是跟主要依靠喷口的转动,有所不同?
梅兰竹菊 发表于 2011-3-4 17:07


    30度?

这个是AL31矢量版本的调整角度范围?
?????????????????探索性的?
HKC 不过这离已成差距还大吧
推比15的发动机用此种推力矢量方法
论文;P
楼主尿量大增啊,目前还处于论文阶段?
tiderip 发表于 2011-3-4 17:14
没点成果整出来那个敢写?又不是《三棒战争》
梅兰竹菊 发表于 2011-3-4 17:18

三棒战争搞笑死了
这个强啊
回复 3# kimez


    这个和暴总有什么关系
改变30度啊?求科普,爱抚娘娘的能改变多少?
扇子15?
30度+20的气动,天知道20机动的极限是多少啊
LZ跟暴总什么关系?
金钱万能 发表于 2011-3-4 20:33
我知道他,他不知道我,因为我是刚下午来注了个册
我朝威武。。。
看看就好,最近列兵尿激狂射现象突出。。。
不是太懂,继续潜伏学习,等待真正的图片出来!
希望是真的!
金钱万能 发表于 2011-3-4 20:33


    说话风格像
wuyinglang 发表于 2011-3-4 21:32


    列兵威武啊!
希望 10年内能 高潮  量产型来……
...还是先等量产吧
探索性的?
最后,非定常流的结果进一步表明,逆流喷管是一种较高效率的射流式矢量喷管.关键词:射流推力矢量;逆流矢量喷管;数值模拟;非定常流动;内流性能
中图分类号:V231.3       文献标识码:A


Unsteady internal performance study of counterflow vectoring thrust nozzle
WANG Mingsheng, YANG Jianjun
(College of Energy and Power Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing 210016,  China)
Abstract: Internal performance of unsteady flow of counterflow thrust vectoring nozzle has researched base on numerical simulation. The results show, in the former of half a unsteady period, the performance parameters are almost the same under attachment and deattachment cases, but have a great difference in the after of half a period. It is the representation of the flow hysteresis. The hysteresis leads the attachment of main flow difficult to depart from the wall. The origin of hysteresis may be relate to shear layer. The evolvement of counterflow and coflow shear layer present a difference behave, and may play a common role in main flow deattachment. Lastly, the results of unsteady flow point out, counterflow thrust vectoring nozzle is a efficiency fluidic vectoring nozzle.
Key words: fluidic thrust vectoring; counterflow vetoring nozzle;
numerical simulation; unsteady flow; internal performance
回复 12# 梅兰竹菊


    西安交大的例子还不够吗?现在研究生论文都是从网上搜索的,可用有几个?
尿不净啊:D
顶论文党!嘿嘿!
论文里头有料啊
梅兰竹菊 发表于 2011-3-4 17:18


    呵呵,那文 俺还没看列。
lz你该不是暴风烈火暴总的马甲吧?
菊爆组合~~~


回复 6# 123deadangel


    +—15°等于三十度,没错的

回复 6# 123deadangel


    +—15°等于三十度,没错的
为什么叫矢量?
有进步就哈