| 时间倾斜法在叶轮机械非定常模拟中的应用 |
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| 引用本文： | 高丽敏,李萍,陈璇,周莉.时间倾斜法在叶轮机械非定常模拟中的应用[J].航空动力学报,2015,30(11):2630-2637. |
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| 作者姓名： | 高丽敏 李萍 陈璇 周莉 |
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| 作者单位： | 西北工业大学 动力与能源学院, 西安 710072;先进航空发动机协同创新中心, 北京 100191,西北工业大学 动力与能源学院, 西安 710072;先进航空发动机协同创新中心, 北京 100191,西北工业大学 动力与能源学院, 西安 710072;先进航空发动机协同创新中心, 北京 100191,西北工业大学 动力与能源学院, 西安 710072 |
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| 基金项目： | 国家自然科学基金(51076132); 新世纪优秀人才支持计划(NCET-10-0078) |
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| 摘 要： | 应用时间倾斜法处理非定常模拟中前后两排叶片栅距不相等的问题,通过对流动控制方程的时空转换,发展了相邻两叶排任意转速下非等栅距的非定常时间精确算法,使该方法拓展为适用于超常规动/动结构叶轮机械内的非定常流动计算.在此基础上编写了完整的时间倾斜法计算程序与约化算法计算程序.对某进口导叶/转子之间静/动干涉的非定常流场进行的计算表明:与约化算法相比,时间倾斜法采用原始单通道模型,真实地反映了流场的非定常性;同时,计算量仅为全通道模拟的2/41,大大节约了计算成本.
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| 关 键 词： | 时间倾斜 叶轮机械 非等栅距 区域约化 非定常 |
| 收稿时间： | 4/8/2014 12:00:00 AM |
Application of time-inclined method on the unsteady simulation of turbomachinery |
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| GAO Li-min,LI Ping,CHEN Xuan and ZHOU Li.Application of time-inclined method on the unsteady simulation of turbomachinery[J].Journal of Aerospace Power,2015,30(11):2630-2637. |
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| Authors: | GAO Li-min LI Ping CHEN Xuan and ZHOU Li |
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| Institution: | School of Power and Energy, Northwestern Polytechnical University, Xi'an 710072;Collaborative Innovation Center for Advanced Aero-Engine, Beijing 100191, China,School of Power and Energy, Northwestern Polytechnical University, Xi'an 710072;Collaborative Innovation Center for Advanced Aero-Engine, Beijing 100191, China,School of Power and Energy, Northwestern Polytechnical University, Xi'an 710072;Collaborative Innovation Center for Advanced Aero-Engine, Beijing 100191, China and School of Power and Energy, Northwestern Polytechnical University, Xi'an 710072 |
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| Abstract: | The method of time-inclined was applied to deal with arbitrary pitch ratio for unsteady simulations. Through time and space conversion of the flow control equation, the unsteady time exact algorithm of two adjacent blade rows with unequal pitch at any speed was developed, so that the method was expanded to be suited to the unsteady flow calculation of turbomachinery with extraordinary rotor/rotor construction. On this basis, the programs of time-inclined algorithm and domain scaling algorithm were both written. The unsteady flow calculation of the stator/rotor interaction between an inlet guide vane and rotor shows that compared with domain scaling algorithm, time-inclined method using the original single-channel model truly reflects the unsteady flow field; at the same time, the amount of calculation is only 2/41 of the total channel simulation, greatly saving the cost calculation. |
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| Keywords: | time-inclined turbomachinery arbitrary pitch domain scaling unsteady |
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