| 后掠角度对超声速混合的影响 |
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| 引用本文： | 金哲岩,王强,额日其太.后掠角度对超声速混合的影响[J].航空动力学报,2005,20(1):33-37. |
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| 作者姓名： | 金哲岩 王强 额日其太 |
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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,北京100083 |
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| 摘 要： | 通过采用隐式方法求解三维、粘性、湍流 Navier-Stokes方程及组分方程 ,对以氢气为燃料的超燃冲压发动机燃烧室模型进行了数值模拟 ,分析了不同后掠角度对于超声速混合的影响。计算结果表明后掠斜坡产生的流向涡的强度以及混合增强效果优于无后掠斜坡 ,并随着后掠角度的增加而增强 ,但总压恢复系数随后掠角度的增加逐渐降低
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| 关 键 词： | 航空、航天推进系统 超音速燃烧冲压发动机 超音速燃烧 斜面 数值模拟 |
| 文章编号： | 1000-8055(2005)01-0033-05 |
| 收稿时间： | 2004/1/16 0:00:00 |
| 修稿时间： | 2004年1月16日 |
Effects of Swept Angle on Supersonic Mixing |
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| JIN Zhe-yan,WANG Qiang and Eriqitai.Effects of Swept Angle on Supersonic Mixing[J].Journal of Aerospace Power,2005,20(1):33-37. |
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| Authors: | JIN Zhe-yan WANG Qiang and Eriqitai |
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| Institution: | School of Jet Propulsion,Beijing University of Aeronautics and Astronautics,Beijing100083,China |
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| Abstract: | Numerical simulations were conducted to study the fluid dynamic mechanisms of a scramjet combustor with H_2 as the fuel.An implicit finite volume method was used to solve the 3-D,viscous,turbulent Navier-Stokes equations and chemical species continuity equations.The effects of ramp swept angle on supersonic mixing were analyzed.The results show that swept ramps give better mixing results and stronger stream vorticity than unswept ramp and that mixing is strengthened with the increase of swept angle,but a total pressure recovery coefficient drop is accompanied. |
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| Keywords: | aerospace propulsion system scramjet engine supersonic combustion ramp numerical simulation |
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