| 火花型合成射流激励器流动特性及其激励参数数值研究 |
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| 引用本文： | 单勇,张靖周,谭晓茗.火花型合成射流激励器流动特性及其激励参数数值研究[J].航空动力学报,2011,26(3):551-557. |
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| 作者姓名： | 单勇 张靖周 谭晓茗 |
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| 作者单位： | 南京航空航天大学,能源与动力学院,南京,210016 |
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| 摘 要： | 利用能量方程中的源项模拟电火花能量的输入,数值模拟了火花型合成射流激励器的流场,获得了激励器的能量蓄积、喷射和吸入过程.结果表明:电火花瞬间能量的输入产生了腔体内的高温、高压环境,从而诱发合成射流的形成;在周期性激励下,合成射流在3个周期后稳定,喷口处的速度呈现非正弦的周期性变化,射流喷射过程时间极短,吸入外界环境气体...
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| 关 键 词： | 火花型合成射流激励器 合成射流 数值模拟 流动特性 激励参数 |
| 收稿时间： | 2010/1/26 0:00:00 |
| 修稿时间： | 4/1/2010 2:07:49 PM |
Numerical study of the flow characteristics and excitation parameters for the sparkjet actuator |
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| SHAN Yong,ZHANG Jing-zhou and TAN Xiao-ming.Numerical study of the flow characteristics and excitation parameters for the sparkjet actuator[J].Journal of Aerospace Power,2011,26(3):551-557. |
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| Authors: | SHAN Yong ZHANG Jing-zhou and TAN Xiao-ming |
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| Institution: | SHAN Yong,ZHANG Jing-zhou,TAN Xiao-ming(College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China) |
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| Abstract: | The way of using the source term in energy equation to simulate the input energy of actuator was reasonably compared with the experimental data for the sparkjet actuator.The processing of energy deposition,discharge and recovery of actuator was obtained.The instance energy input can produce the condition of high pressure and temperature in the actuator,inducing the formation of synthetic jet.Under the periodic action,the velocity of synthetic jet on the nozzle is stabilized on a non-sinusoidal law after thr... |
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| Keywords: | sparkjet actuator synthetic jet numerical simulation flow characteristics excitation parameters |
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