| 单边膨胀喷管气动和红外辐射特性数值研究 |
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| 引用本文： | 张少丽,单勇,张靖周.单边膨胀喷管气动和红外辐射特性数值研究[J].航空动力学报,2011,26(7):1502-1508. |
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| 作者姓名： | 张少丽 单勇 张靖周 |
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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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| 基金项目： | 南京航空航天大学基本科研业务费专向科研项目(NS2010036); 航空科学基金(2010ZB52019) |
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| 摘 要： | 通过计算流体动力学/红外辐射（CFD/IR）数值模拟的方法,研究了单膨胀边倾角、喉道高度、侧壁长度和落压比（NPR）对单边膨胀喷管（SERN）气动性能和红外辐射特性的影响.研究结果表明：轴向推力系数随着单膨胀边倾斜角度增大而急剧减小,推力矢量角随着单膨胀边倾斜角度增大而增大;随着喷管落压比的增大,轴向推力系数先增大后减...
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| 关 键 词： | 红外抑制 单边膨胀喷管 气动性能 红外辐射 数值模拟 |
| 收稿时间： | 6/25/2010 8:06:03 PM |
| 修稿时间： | 5/14/2011 9:05:40 PM |
Numerical study on aerodynamic and infrared radiation characteristics of single expansion ramp nozzle |
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| ZHANG Shao-li,SHAN Yong and ZHANG Jing-zhou.Numerical study on aerodynamic and infrared radiation characteristics of single expansion ramp nozzle[J].Journal of Aerospace Power,2011,26(7):1502-1508. |
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| Authors: | ZHANG Shao-li SHAN Yong and ZHANG Jing-zhou |
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| Institution: | ZHANG Shao-li,SHAN Yong,ZHANG Jing-zhou(College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China) |
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| Abstract: | Based on computational fluid dynamics/infrared radiation(CFD/IR) numerical calculations,the effects of different structures and nozzle pressure ratio(NPR) on the aerodynamic and infrared radiation characteristics were revealed for a single expansion ramp nozzle(SERN).The results show that:with increase of ramp angle,the thrust-vector angle is enlarged and axial thrust coefficient is decreased rapidly;with increase of nozzle pressure ratio,the axial thrust coefficient increases firstly and then decreases,mea... |
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| Keywords: | infrared suppression single expansion ramp nozzle(SERN) pneumatic performances infrared radiation numerical simulation |
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