合成射流激励器射流矢量控制的物理因素

夏智勋; 罗振兵

合成射流激励器射流矢量控制的物理因素

国防科技大学航天与材料工程学院,长沙 410073

基金项目: 国家自然科学基金(重大研究计划)资助项目(90205016);国家自然科学基金资助项目(50176055)

详细信息

作者简介:
夏智勋(1961- ),男,湖南益阳人,教授,博士;罗振兵(1979- ),男,湖北黄石人,讲师,博士(联系人.Tel:+86-731-4573099;E-mail:lu-ozhenbing@163.com).

中图分类号: O326
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- 文章访问数: 2449
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出版历程
- 收稿日期: 2006-05-19
- 修回日期: 2007-05-16
- 刊出日期: 2007-07-15

Physical Factors of a Primary Jet Vectoring Control Using Synthetic Jet Actuators

College of Aerospace and Material Engineering, National University of Defense Technology, Changsha 410073, P. R. China

摘要

摘要: 对不同出口构型合成射流激励器进行射流矢量控制进行了数值研究，并对决定合成射流激励器射流矢量控制的物理因素进行了分析和归纳．低压区位置和面积及其压强梯度、合成射流动量分量、合成射流对主流的卷吸率是直接控制主射流矢量力和矢量角的物理因素．合成射流的3个特征参数直接影响和控制低压区的面积及其压强梯度，合成射流激励器出口台阶和出口斜喷角都对低压区位置、面积和合成射流对主流的卷吸率有影响和调节作用，合成射流激励器出口斜喷角还直接控制合成射流动量分量．基于对合成射流激励器射流矢量控制物理因素的分析，确定了控制物理因素的源变量，建立了由控制能力函数和调节功能函数组成的合成射流矢量控制初步模型，初步模型能够对源变量引起的合成射流激励器射流矢量控制效率不同作出解释，并进一步指出了进行射流矢量控制的最佳激励器是充分利用调节功能函数．
- 流动控制 /
- 合成射流 /
- 射流控制 /
- 物理因素
Abstract: A primary jet vectoring using synthetic jet actuators with different exit configurations was investigated, and the main physical factors influencing jet vectoring were analyzed and summarized. The physical factors of the pressure difference, the location and area of the lower pressure region, the component of the synthetic jet momentum and the entrainment ratio of the synthetic jet flow to primary jet flow directly control the vectoring force and the vectoring angle. Three characteristic parameters of the synthetic jet contribute to the pressure difference and the area of the lower pressure region. Both the extension step and slope angle of the actuator exit have functions of regulating the location of the lower pressure region, the area of the lower pressure region, and the entrainment ratio of the synthetic jet flow to primary jet flow. The slope angle of the actuator exit has additional functions of regulating the component of the synthetic jet momentum. Based upon analyzing the physical factors of jet vectoring control with synthetic jets, the source variables of the physical factors were established. A preparatory control model of jet vectoring using synthetic jet actuator was presented. And it has the benefit of explaining the efficiency of jet vectoring using synthetic jet actuator with source variables at different values. And it indicates the optimal actuator is taking full advantage of the regulating function.
- flow control /
- synthetic jet /
- jet vectoring /
- physical factor

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参考文献(21)

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合成射流激励器射流矢量控制的物理因素

作者简介:
夏智勋(1961- ),男,湖南益阳人,教授,博士;罗振兵(1979- ),男,湖北黄石人,讲师,博士(联系人.Tel:+86-731-4573099;E-mail:lu-ozhenbing@163.com).

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Physical Factors of a Primary Jet Vectoring Control Using Synthetic Jet Actuators

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合成射流激励器射流矢量控制的物理因素

作者简介: 夏智勋(1961- ),男,湖南益阳人,教授,博士;罗振兵(1979- ),男,湖北黄石人,讲师,博士(联系人.Tel:+86-731-4573099;E-mail:lu-ozhenbing@163.com).

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出版历程

Physical Factors of a Primary Jet Vectoring Control Using Synthetic Jet Actuators

计量

出版历程

目录

作者简介:
夏智勋(1961- ),男,湖南益阳人,教授,博士;罗振兵(1979- ),男,湖北黄石人,讲师,博士(联系人.Tel:+86-731-4573099;E-mail:lu-ozhenbing@163.com).