| 单边膨胀喷管试验和数值模拟 |
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| 引用本文： | 谭杰,金捷,杜刚,徐惊雷. 单边膨胀喷管试验和数值模拟[J]. 航空动力学报, 2011, 26(6): 1223-1230 |
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| 作者姓名： | 谭杰 金捷 杜刚 徐惊雷 |
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| 作者单位： | 1. 北京航空航天大学能源与动力工程学院,航空发动机数值仿真研究中心,北京100191
2. 南京航空航天大学能源与动力学院,南京,210016 |
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| 摘 要： | 在落压比为4～60范围内,对两种不同膨胀型面的高速二元单边膨胀喷管模型试验件(SERN 1和SERN 2)进行了试验研究,获得了壁面静压分布和纹影照片.用三维数值计算得到了喷管性能参数,丰富了流场信息.试验和数值模拟结果表明:下腹板出口气流处于深度过膨胀状态时,喷管内部激波/边界层相互干扰并存在4～5道斜激波,而且SE...
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| 关 键 词： | 单边膨胀喷管 激波/边界层干扰 壁面静压分布 数值模拟 高超声速飞行器 |
| 收稿时间： | 2010-05-24 |
| 修稿时间： | 2010-07-20 |
Experimental and computational investigation of single-expansion-ramp-nozzle |
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| TAN Jie,JIN Jie,DU Gang and XU Jing-lei. Experimental and computational investigation of single-expansion-ramp-nozzle[J]. Journal of Aerospace Power, 2011, 26(6): 1223-1230 |
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| Authors: | TAN Jie JIN Jie DU Gang XU Jing-lei |
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| Affiliation: | TAN Jie1,JIN Jie1,DU Gang1,XU Jing-lei2(1.Aeroengine Numerical Simulation Research Center,School of Jet Propulsion,Beijing University of Aeronautics and Astronautics,Beijing 100191,China,2.College of Energy and Power Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China) |
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| Abstract: | An experimental study was conducted for two high-speed two-dimensional(2-D) single-expansion-ramp-nozzles with different ramp contours at nozzle pressure ratios Rnp between 4 and 60 under wind off condition.The wall static pressure distributions and schlieren flow visualization were obtained.A computational investigation was also conducted to determine the performance of the nozzle and enrich the details of flowfield.Results from this study indicate that under highly overexpanded conditions of cowl trailing... |
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| Keywords: | single-expansion-ramp-nozzle shock wave/boundary-layer interaction wall static pressure distributions numerical simulation hypersonic vehicle |
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