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等压比热在基于壁面放电的激波控制中的影响

严红 王松

严红, 王松. 等压比热在基于壁面放电的激波控制中的影响[J]. 力学学报, 2015, 47(1): 51-60. doi: 10.6052/0459-1879-14-031
引用本文: 严红, 王松. 等压比热在基于壁面放电的激波控制中的影响[J]. 力学学报, 2015, 47(1): 51-60. doi: 10.6052/0459-1879-14-031
Yan Hong, Wang Song. EFFECT OF CONSTANT PRESSURE SPECIFIC HEAT IN SHOCK WAVE CONTROL USING SURFACE DISCHARGE[J]. Chinese Journal of Theoretical and Applied Mechanics, 2015, 47(1): 51-60. doi: 10.6052/0459-1879-14-031
Citation: Yan Hong, Wang Song. EFFECT OF CONSTANT PRESSURE SPECIFIC HEAT IN SHOCK WAVE CONTROL USING SURFACE DISCHARGE[J]. Chinese Journal of Theoretical and Applied Mechanics, 2015, 47(1): 51-60. doi: 10.6052/0459-1879-14-031

等压比热在基于壁面放电的激波控制中的影响

doi: 10.6052/0459-1879-14-031
基金项目: 国家自然科学基金资助项目(51176157).
详细信息
    作者简介:

    严红,教授,主要研究方向:超音速流动与燃烧的主动控制技术.E-mail: yanhong@nwpu.edu.cn

  • 中图分类号: V211

EFFECT OF CONSTANT PRESSURE SPECIFIC HEAT IN SHOCK WAVE CONTROL USING SURFACE DISCHARGE

Funds: The project was supported by the National Natural Science Foundation of China (51176157).
  • 摘要: 放电等离子体对流动的控制机理可按热效应和非热效应分为两大类,其中放电等离子体的热效应对流场中激波结构有着明显的控制作用. 目前在放电等离子体热激励对激波控制的数值模拟过程中,通常采用等效热源的方式来实现放电的热效应,数值模拟和实验的结果显示放电产生的局部温度可达到上万度. 如果数值模拟的过程中没有考虑到气体等压比热随温度的非线性变化,计算得到的结果是有失真实性的. 本文以5 马赫的超音速进气道为平台,对基于壁面放电的激波控制过程进行了数值模拟. 选取了随温度非线性变化的等压比热,并且将其结果与定等压比热的计算结果进行了对比. 结果发现:(1) 两种等压比热下,计算结果显示放电热激励在激波控制上都有着显著的效果;(2) 两种计算结果在模拟与温度相关的参数(温度、马赫数和总压恢复系数)上的差别非常明显. 因此,为了获得壁面放电对激波控制更真实的计算结果,必须考虑到等压比热随温度发生非线性变化效应的影响.

     

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出版历程
  • 收稿日期:  2014-01-23
  • 修回日期:  2014-08-10
  • 刊出日期:  2015-01-18

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