| 谐波平衡法在叶轮机非定常数值模拟中的应用研究 |
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| 引用本文： | 张恒铭,唐弋棣,卫海洋,林彬彬.谐波平衡法在叶轮机非定常数值模拟中的应用研究[J].科学技术与工程,2020,20(13):5403-5408. |
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| 作者姓名： | 张恒铭 唐弋棣 卫海洋 林彬彬 |
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| 作者单位： | 中国民航飞行学院航空工程学院, 广汉618300;L.A.Turbine涡轮机械公司, 瓦伦西亚91355;北京动力机械研究所, 北京100074 |
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| 基金项目： | 中国民用航空飞行学院科学研究基金;国家自然科学基金;四川省科技计划 |
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| 摘 要： | 为解决常规叶轮机非定常数值模拟的高耗时问题,本文引入谐波平衡方法并发展了对应的隐式迭代算法,实现了高效的叶轮机非定常数值模拟。在此基础之上,以某对转风扇为研究对象,考察了谐波平衡方法在叶轮机非定常数值模拟中的应用。通过与常规的时域非定常计算结果对比,发现谐波平衡法精确的捕捉到了对转风扇的排间干扰信息,能够很好的刻画出上游尾迹在下游叶片通道中的传播过程,且采用3个谐波数即可满足大多数的工程应用要求。
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| 关 键 词： | 谐波平衡法 计算流体力学 非定常流 叶轮机 |
| 收稿时间： | 2019/8/2 0:00:00 |
| 修稿时间： | 2020/5/19 0:00:00 |
Application of harmonic balance method in unsteady numerical simulation of Turbomachinery |
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| Zheng Hengming,Tang Yidi,Wei Haiyang,Lin Binbin.Application of harmonic balance method in unsteady numerical simulation of Turbomachinery[J].Science Technology and Engineering,2020,20(13):5403-5408. |
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| Authors: | Zheng Hengming Tang Yidi Wei Haiyang Lin Binbin |
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| Affiliation: | Civil Aviation Flight university of China |
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| Abstract: | In order to solve the problem of the high time-consuming of the conventional unsteady numerical simulation of turbomachinery, this article achieves the high efficient unsteady numerical calculation of turbomachinery by the Harmonic Balance Method and developing the corresponding implicit iterative algorithm. Then taking a counter-rotating fan as the research object, the application of harmonic balance method in unsteady numerical simulation of turbomachinery is investigated. By comparing the flowfield of the time-domain unsteady calculation, it is found that harmonic balance method can capture the row-to-row unsteady disturbance accurately and describe the process of wake transportation in the downstream blade passage well, and three harmonic waves is enough for most engineering applications. |
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| Keywords: | harmonic balance method computational fluid dynamics unsteady flow turbomachinery |
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