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带喷流的超声速光学头罩流动显示

, PP. 105-108

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Abstract:

在马赫数3.8的超声速风洞中,以高时空分辨率的基于纳米示踪的平面激光散射(NPLS,Nano-tracerbasedPlanarLaserScattering)技术为实验手段,研究了有无喷流的超声速光学头罩流场的精细结构,清晰地再现了流场中的激波、膨胀波、剪切层和湍流边界层等复杂结构.通过分析时间相关的流场NPLS图像,可以发现流场结构随时间的演化特性.结果表明无喷流情况下光学窗口上方的大部分流场处于层流状态;有喷流情况下剪切层的层流区域较短,在很短的距离内转捩至湍流状态;喷流出口压力高于外界压力情况下剪切层的转捩位置比压力匹配情况下较为靠前,光学窗口上方的涡结构也较为复杂.比较而言,后者对气动光学性能的影响更大.

References

[1]  杨晓颖,刘纯胜,顾永其.高速飞行器红外制冷头罩设计 [J].红外与激光工程,2004(6):776-782 Yang Xiaoying,Liu Chunsheng,Gu Yongqi.Design of hypersonic vehicle infrared cooling dome [J].Infrared and Laser Engineering,2004(6):776-782 (in Chinese)
[2]  范洁川.近代流动显示技术 [M].北京:国防工业出版社,2002 Fan Jiechuan.Latter-day flow visualization technique [M].Beijing:National Defense Industry Press,2002 (in Chinese)
[3]  Meyer T R.Accuracy and resolution issues in NO/acetone PLIF measurements of gas-phase molecular mixing [J].Exp Fluids,2002,32(5):603-611
[4]  Zhao Y X,Yi S H,Tian L F,et al.The fractal measurement of experimental images of supersonic turbulent mixing layer [J].Sci China Ser G,2008,52(2):140-143
[5]  范洁川.近代流动显示技术 [M].北京:国防工业出版社,2002 Fan Jiechuan.Latter-day flow visualization technique [M].Beijing:National Defense Industry Press,2002 (in Chinese)
[6]  Meyer T R.Accuracy and resolution issues in NO/acetone PLIF measurements of gas-phase molecular mixing [J].Exp Fluids,2002,32(5):603-611
[7]  Zhao Y X,Yi S H,Tian L F,et al.The fractal measurement of experimental images of supersonic turbulent mixing layer [J].Sci China Ser G,2008,52(2):140-143
[8]  田立丰,易仕和,赵玉新,等.超声速弹头凹形光学头罩流动显示研究 [J].实验流体力学,2009,23(1):15-17 Tian Lifeng,Yi Shihe,Zhao Yuxin,et al.Flow visualization of supersonic flow around a concave optical bow cap model of warhead [J].Journal of Experiments in Fluid Mechanics,2009,23(1):15-17 (in Chinese)
[9]  田立丰,易仕和,赵玉新,等.超声速弹头凹形光学头罩流动显示研究 [J].实验流体力学,2009,23(1):15-17 Tian Lifeng,Yi Shihe,Zhao Yuxin,et al.Flow visualization of supersonic flow around a concave optical bow cap model of warhead [J].Journal of Experiments in Fluid Mechanics,2009,23(1):15-17 (in Chinese)
[10]  Tian L F,Yi S H,Zhao Y X,et al.Study of density field measurement based on NPLS technique in supersonic flow [J].Sci China Ser G,2009,52(9):1357-1363
[11]  Tian L F,Yi S H,Zhao Y X,et al.Study of density field measurement based on NPLS technique in supersonic flow [J].Sci China Ser G,2009,52(9):1357-1363
[12]  易仕和,赵玉新,田立丰,等.NPLS技术及其在超声速湍流流动显示中的应用//力学50周年大会.北京:中国力学学会,2007:190-193 Yi Shihe,Zhao Yuxin,Tian Lifeng,et al.NPLS technique and its application on the flow visualization of supersonic turbulenc//Mechanics Conference of 50th anniversary.Beijing:The Chinese Soliety of Theoretical and Applied Mechaaics,2007: 190- 193(in Chinese)
[13]  易仕和,赵玉新,田立丰,等.NPLS技术及其在超声速湍流流动显示中的应用//力学50周年大会.北京:中国力学学会,2007:190-193 Yi Shihe,Zhao Yuxin,Tian Lifeng,et al.NPLS technique and its application on the flow visualization of supersonic turbulenc//Mechanics Conference of 50th anniversary.Beijing:The Chinese Soliety of Theoretical and Applied Mechaaics,2007: 190- 193(in Chinese)
[14]  Yi S H,He L,Zhao Y X,et al.A flow control study of a supersonic mixing layer via NPLS [J].Science in China,2009,52(12):2001-2006
[15]  赵玉新,易仕和,田立丰,等.超声速湍流混合层实验图像的分形度量 [J].中国科学,2008,38(5):562-571 Zhao Yuxin,Yi Shihe,Tian Lifeng,et al.The fractal measurement of experimental images of supersonic turbulent mixing layer [J].Science in China,2008,38(5):562-571 (in Chinese)
[16]  Yi S H,He L,Zhao Y X,et al.A flow control study of a supersonic mixing layer via NPLS [J].Science in China,2009,52(12):2001-2006
[17]  Zhao Y X,Yi S H,Tian L F,et al.Supersonic flow imaging via nanoparticles [J].Sci China Ser E,2009,52(12):3640-3648
[18]  赵玉新,易仕和,田立丰,等.超声速湍流混合层实验图像的分形度量 [J].中国科学,2008,38(5):562-571 Zhao Yuxin,Yi Shihe,Tian Lifeng,et al.The fractal measurement of experimental images of supersonic turbulent mixing layer [J].Science in China,2008,38(5):562-571 (in Chinese)
[19]  Zhao Y X,Yi S H,Tian L F,et al.Supersonic flow imaging via nanoparticles [J].Sci China Ser E,2009,52(12):3640-3648
[20]  陈植.超声速后台阶湍流结构实验及其相关技术研究.长沙:国防科技大学航天与材料工程学院,2010 Chen Zhi.Turbulent structure measurements and the relative technique researches of supersonic flow over backward facing step.Changsha:College of Aerospace and Material Engineering,National University of Defense Technology,2010 (in Chinese)
[21]  陈植.超声速后台阶湍流结构实验及其相关技术研究.长沙:国防科技大学航天与材料工程学院,2010 Chen Zhi.Turbulent structure measurements and the relative technique researches of supersonic flow over backward facing step.Changsha:College of Aerospace and Material Engineering,National University of Defense Technology,2010 (in Chinese)
[22]  Yi S H,Tian L F,Zhao Y X,et al.Aero-optical aberration measuring method based on NPLS and its application [J].Chinese Science Bulletin,2010,55(31):3545-3549
[23]  赵玉新.超声速混合层时空结构的实验研究.长沙:国防科技大学航天与材料工程学院,2008 Zhao Yuxin.Experimental investigation of spatiotemporal structures of supersonic mixing layer.Changsha:College of Aerospace and Material Engineering,National University of Defense Technology,2008 (in Chinese)
[24]  Yi S H,Tian L F,Zhao Y X,et al.Aero-optical aberration measuring method based on NPLS and its application [J].Chinese Science Bulletin,2010,55(31):3545-3549
[25]  赵玉新.超声速混合层时空结构的实验研究.长沙:国防科技大学航天与材料工程学院,2008 Zhao Yuxin.Experimental investigation of spatiotemporal structures of supersonic mixing layer.Changsha:College of Aerospace and Material Engineering,National University of Defense Technology,2008 (in Chinese)
[26]  Aupoix B,Mignosi A,Viala S,et al.Experimental and numerical study of supersonic film cooling [J].AIAA J,1998,36(6):916-923
[27]  Aupoix B,Mignosi A,Viala S,et al.Experimental and numerical study of supersonic film cooling [J].AIAA J,1998,36(6):916-923

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