主管单位:中华人民共和国工业和信息化部
主办单位:西北工业大学  中国航空学会
地       址:西北工业大学友谊校区航空楼
不同类型多级等离子体激励器诱导气流的力学特性研究
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西北工业大学,西北工业大学,西北工业大学,陕西理工学院

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O355

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陕西省教育厅科学研究项目(14JK1160),陕西省县域重点科技计划项目(2012XY-15)


Experimental investigation of the acceleration of quiescent air by using bipolar plasma actuator
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Northwestern Polytechnical University,Northwestern Polytechnical University,Northwestern Polytechnical University,Shaanxi University of Technology

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    摘要:

    等离子体激励器通过产生的等离子加速气流,可以实现对流动的控制。然而,单一等离子体由于受到自身流向长度的影响,一般用于小尺度物体的流动控制。目前采用较多的是将多个单一等离子体激励器并联成一组的多级激励器, 传统的多级等离子激励器由于存在反向放电问题,激励效率较低。本文提出了一种新型多级双极性等离子体激励器,即将传统多级激励器中前一级的下电极都与后一级的上电极相连。粒子示踪测速系统(PIV)对两种激励器加速气流的实验结果表明, 新型多级双极性等离子体激励器电极板不受反向放电的影响,其对大气的吸附和加速作用比较明显,控制效果较好。

    Abstract:

    Plasma actuators can be used in flow control applications due to the accelerated airflow transfer from plasma to fluid. Due to geometry limitation, however, only small trust can be obtained by DBD plasma actuators, which limits its application in large-scale flow problems. Usually, several surface DBDs are combined in series to obtain a single multistage actuation surface. However, the reverse discharge between successive discharges limits the effectiveness of such multi-DBD actuators. In this paper, a new multi-bipolar DBD plasma actuator is proposed for large-scale flow control applications. An innovative method for constructing multiple plasma actuators of bipolar electrodes is introduced to enhance the thrust. Multi-bipolar electrodes are adopted with the electrode of former covered electrode and later exposed electrode connected together. To validate the proposed method, particle image velocimetry (PIV) experiments are performed. The results show that the multi-bipolar actuator electrode plate is not affected by reverse discharge. The adsorption of the atmosphere and the control effect is obvious.

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王玉玲,高超,郝江南,王军利.不同类型多级等离子体激励器诱导气流的力学特性研究[J].航空工程进展,2015,6(3):279-286

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  • 收稿日期:2015-04-24
  • 最后修改日期:2015-06-17
  • 录用日期:2015-06-24
  • 在线发布日期: 2015-11-12
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