| 轴向间隙对动 /静相干叶排内部非定常特性的影响 |
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| 引用本文： | 党政,席光,王尚锦.轴向间隙对动 /静相干叶排内部非定常特性的影响[J].工程热物理学报,2000,21(5):584-586. |
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| 作者姓名： | 党政 席光 王尚锦 |
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| 作者单位： | 西安交通大学能源与动力工程学院!陕西 西安710049 |
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| 基金项目： | 教育部留学回国人员科研启动基金，西安交通大学校科研和教改项目，1997［436］，DFXJU 1998-04，， |
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| 摘 要： | 本文采用文献［3,4］所发展的滑移界面技术，求解了不同轴向间隙时某一透平级内的非定常流场, 发现轴向间隙由0.152倍栅距变化到0.533倍栅距时，监测点速度u的相对振幅由26.27%下降为7.94%； 速度v的相对振幅由21.34%下降到7.3%。计算结果表明轴向间隙的增大将使动/静叶排间的相互干扰作用减弱，从而使其内部非定常流动特性减小，为设计工作提供了参考依据
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| 关 键 词： | 滑移界面 动/静相干叶排 非定常流动 轴向间隙 sliding interface rotor/statorinteraction unsteady flow |
| 文章编号： | 0253-231X(2000)05-0584-03 |
| 修稿时间： | 1999年6月17日 |
AXIAL SPACING EFFECTS ON UNSTEADY ROTOR/STATOR INTERACTION FLOW |
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| Abstract.AXIAL SPACING EFFECTS ON UNSTEADY ROTOR/STATOR INTERACTION FLOW[J].Journal of Engineering Thermophysics,2000,21(5):584-586. |
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| Authors: | Abstract |
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| Abstract: | An investigation has been implemented to simulate theeffects of axial spacing on the unsteady rotor/stator interaction. Inorder to calculate the unsteady flow within a turbine stagesimultaneously, a developed sliding interface technique is adoptedin conjunction with non-orthogonal grids and non-staggered arrangementtechniques. An implicit method is employed to deal with the coupling ofvelocity and pressure. Some incompressible rotor/statorinteractions with low Reynolds number have been simulated underdifferent axial spacing. The structure of vortexes occurred betweenrotor and stator blade rows have been showed indetail. The results show that increased axial spacing between bladerows in an axial turbine stage can decrease the unsteadiness of flow field |
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| Keywords: | sliding interface rotor/stator interaction unsteady flow axial spacing |
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