| 带喉道注气的轴对称收扩喷管内流场计算研究 |
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| 引用本文： | 邹欣华,王强.带喉道注气的轴对称收扩喷管内流场计算研究[J].航空动力学报,2009,24(9):2078-2084. |
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| 作者姓名： | 邹欣华 王强 |
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| 作者单位： | 北京航空航天大学,能源与动力工程学院,北京,100191 |
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| 摘 要： | 通过对带喉道注气控制的轴对称收扩喷管内流场计算研究,分析了喉道注气对喷管内流特性的影响.研究结果表明,相同落压比(NPR)下,随着二次流压比(SPR)的增大,喷管推力系数和流量系数均减小,其中对喷管推力系数的影响低于2%,而对喷管流量系数的影响可超过15%.并在此基础上,分别研究了喷管扩张比和调节片长度对喉道控制效果的影响,得到研究范围内相对较好的喷管计算模型.
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| 关 键 词： | 喉道控制 二次流 收-扩喷管 内流特性 |
| 收稿时间： | 10/6/2008 9:35:01 PM |
| 修稿时间： | 2008/11/27 0:00:00 |
Computational analysis on internal performance of a convergent-divergent nozzle with throat fluidic injection |
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| ZOU Xin-hua and WANG Qiang.Computational analysis on internal performance of a convergent-divergent nozzle with throat fluidic injection[J].Journal of Aerospace Power,2009,24(9):2078-2084. |
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| Authors: | ZOU Xin-hua and WANG Qiang |
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| Institution: | School of Jet Propulsion Beihang University |
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| Abstract: | The results of a computational study to investigate the impact of throat fluidic injection on the flow field in an axisymmetric nozzle are presented. With the SPR increasing, both the nozzle thrust ratio and mass flow ratio reduced under the same NPR. In addition, the effect of throat fluidic injection on the nozzle thrust ratio was less than 2%, but on the nozzle mass flow ratio more than 15% .With the impact of the divergence ratio and adjustment sheet of the nozzle on the throat control effect presented, a better nozzle model are obtained within the scope of the investigation . |
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| Keywords: | throat area control secondary flow convergent-divergent nozzle internal performance |
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