| 三维叶轮机叶片黏性反问题设计改进方法 |
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| 引用本文： | 李艾挺,朱阳历,李文,秦伟,张雪辉,陈海生.三维叶轮机叶片黏性反问题设计改进方法[J].航空动力学报,2019,34(6):1380-1388. |
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| 作者姓名： | 李艾挺 朱阳历 李文 秦伟 张雪辉 陈海生 |
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| 作者单位： | 中国科学院工程热物理研究所,北京100190;中国科学院大学工程科学学院,北京100049;中国科学院工程热物理研究所,北京,100190;中国科学院大学工程科学学院,北京,100049 |
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| 基金项目： | 国家重点研发计划(2017YFB0903602); 国家自然科学基金优秀青年科学基金(51606188);中国科学院前沿科学重点研究项目(QYZDB-SSW-JSC023); 中科院洁净能源先导科技专项(XDA21070200) |
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| 摘 要： | 提出了一种改进的适用于三维黏性流场的叶轮机叶片反问题设计方法。该方法假设叶片的中弧线具有虚拟移动速度,其位移量由目标载荷与实际载荷的差值计算,并利用黏性底层厚度进行限制。采用三次B样条曲线插值方法对叶片中弧线进行光顺,新叶型通过更新后的中弧线和给定的叶片厚度得到。算例验算结果表明:该方法能够根据设计意图对叶型进行修改,鲁棒性强,收敛速度快,叶片的可变自由度高,不依赖于特定的网格和求解器,具备一定的通用性。
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| 关 键 词： | 反问题设计 跨声速压气机 优化设计 三维黏性流 载荷分布 |
| 收稿时间： | 2018/12/10 0:00:00 |
Improved viscous inverse design method for three-dimensional turbomachinery blades |
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| Abstract: | An improved inverse design method for three-dimensional turbomachinery blades in viscous flow field was proposed. It was assumed that the camber line had a virtual moving speed. The virtual movement was calculated by the difference between the target load and the actual load, and was reasonably limited by the thickness of viscous sublayer. The camber line was smoothed by cubic B-spline interpolation, and the new blade profile was obtained by updated camber line and the given blade thickness. Verification results show that the method can modify the blade profile according to the design intention. It has strong robustness, fast convergence speed, and high degree of freedom of the blade, independent of the specific grid and solver, and also it has certain generality. |
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| Keywords: | inverse design method transonic compressor optimization design three-dimensional viscous flow load distribution |
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