| 基于CFD技术的螺旋桨气动特性研究 |
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| 引用本文： | 许建华,宋文萍,韩忠华,杨旭东.基于CFD技术的螺旋桨气动特性研究[J].航空动力学报,2010,25(5):1103-1109. |
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| 作者姓名： | 许建华 宋文萍 韩忠华 杨旭东 |
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| 作者单位： | 西北工业大学,航空学院,翼型/叶栅空气动力学科技重点实验室,西安,710072 |
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| 摘 要： | 通过求解绝对坐标系下的雷诺平均Navier-Stokes方程数值模拟螺旋桨侧流黏性绕流,计算螺旋桨非定常气动特性.为了保证时间精度和提高计算效率,采用含牛顿型LU-SGS(lower-upper symmetric-Gauss-Seidel)子迭代的全隐式双时间法并引入多重网格技术.为了描述桨叶的相对运动,采用运动嵌套网格技术.对于轴流状态,计算结果与实验值吻合良好;对于侧流状态,与工程算法1P(once-per-revolution)载荷法进行了比较,验证了方法的有效性.应用该方法计算螺旋桨在不同来流偏角下的周期性气动特性,可有效地用于螺旋桨的设计.
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| 关 键 词： | 螺旋桨 侧流状态 Navier-Stokes方程 运动嵌套网格 多重网格方法 |
| 收稿时间： | 2009/4/28 0:00:00 |
| 修稿时间： | 2009/12/1 0:00:00 |
Aerodynamic performance research of propellers based on CFD technology |
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| XU Jian-hu,SONG Wen-ping,HAN Zhong-hua and YANG Xu-dong.Aerodynamic performance research of propellers based on CFD technology[J].Journal of Aerospace Power,2010,25(5):1103-1109. |
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| Authors: | XU Jian-hu SONG Wen-ping HAN Zhong-hua and YANG Xu-dong |
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| Institution: | National Key Laboratory of Aerodynamic Design and Research, Northwestern Polytechnical University |
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| Abstract: | Unsteady compressible Reynolds-averaged Navier-Stokes equations in absolute coordinate system were solved to simulate the flow around propeller for yawing-configurations. A moving chimera-grid methodology combined with multigrid scheme and a fully implicit dual-time stepping method for simulating the viscous flows over propellers were presented. For zero-yaw configurations,the numerical results agreed well with the experimental data; and for yawing configurations,the results were compared with 1P (once-per-revolution) method. Both cases validate the method. The periodical characteristics of propeller performance at different yaw angles provide a guideline for propeller design. |
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| Keywords: | propeller yawing-configuration Navier-Stokes equations moving chimera-grid muhigrid scheme |
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