| 双圆弧超音速喷管的推力偏心特性 |
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| 引用本文： | 武晓松,王政时.双圆弧超音速喷管的推力偏心特性[J].兵工学报,1998,19(2):126-129. |
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| 作者姓名： | 武晓松 王政时 |
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| 作者单位： | 南京理工大学 |
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| 摘 要： | 用三维非对称流场数值模拟的方法研究了双圆弧超音速喷管的推力偏心特性，给出了在改变喷管长度和喷管扩张比两种情况下，喷管侧向推力分量沿轴向的变化及其零点位置在轴线上的分布。结果表明，侧向力第一零点随喷管长度和扩张比呈现微弱的、非线性变化，而第二零点的位置与喷管长度和扩张比有很好的线性对应关系。
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| 关 键 词： | 双圆弧喷管 喷管 推力偏心 微推偏喷管 火箭 |
THRUST MISALIGNMENT IN DOUBLE-CIRCULAR NOZZLES |
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| Wu Xiaosong, Wang Zhengshi, Ji Zongde, Qiu Guangshen.THRUST MISALIGNMENT IN DOUBLE-CIRCULAR NOZZLES[J].Acta Armamentarii,1998,19(2):126-129. |
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| Authors: | Wu Xiaosong Wang Zhengshi Ji Zongde Qiu Guangshen |
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| Abstract: | The thrust misalignment in double-circular nozzles is investigated for the gas flow misalignment With respect to the supersonic nozzle contour at the entrance, using numerical simulations to the non-symmetrical flow field through the nozzle. The side force distributions along the axis of the nozzle are presented for wide ranges of nozzle length and radius ratio. The results show that the first zero point of side force varies slightly and non-linearly with respect to the length and radius ratio of the nozzle, but good linearity exists between the second one and the nozzle geometry. |
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| Keywords: | double-circular nozzle thrust misalignment mini thrust misalignment nozzle characteristic method numerical simulation |
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