| 进气道俯仰振荡状态的非定常数值仿真 |
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| 引用本文： | 柳长安,吴宝元,杨铁成.进气道俯仰振荡状态的非定常数值仿真[J].火箭推进,2008,34(3):23-26. |
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| 作者姓名： | 柳长安 吴宝元 杨铁成 |
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| 作者单位： | 西安航天动力研究所,陕西,西安,710100 |
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| 摘 要： | 为研究进气道俯仰振荡状态时的性能,耦合求解俯仰振荡运动和非定常Navier-Stokes方程,对平衡攻角为0°、振荡幅值为15°的进气道非定常流场进行了数值仿真。结果表明：在俯仰振荡状态下,进气道的性能发生周期性变化,存在一个类似于领结形状的滞环。
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| 关 键 词： | 进气道 俯仰振荡 非定常 Navier-Stokes方程 |
Unsteady simulation of the pitching intake |
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| Liu Chang'an,Wu Baoyuan,Yang Tiecheng.Unsteady simulation of the pitching intake[J].Journal of Rocket Propulsion,2008,34(3):23-26. |
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| Authors: | Liu Chang'an Wu Baoyuan Yang Tiecheng |
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| Institution: | Liu Chang\'an,Wu Baoyuan,Yang Tiecheng (Xi\'an Aerospace Propulsion Institute,Xi\'an 710100,China) |
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| Abstract: | To study the intake capacity in the pitching condition, this paper simulates the intake unsteady pitching flow by solving the unsteady Navier-Stokes equations coupled with the motion equation, in which the motion is pitching around the static trim attack angle of zero degree with the amplitude of fifteen degree. The simulation result shows that the unsteady flow changes with a periodicity and the intake capacity varies along a hysteresis loop which looks like a tie. |
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| Keywords: | intake pitching unsteady Navier-Stokes equation |
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