| 跨音速叶栅粘流计算的多级广义有限元法 |
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| 引用本文： | 朱刚,沈孟育,刘秋生,王保国.跨音速叶栅粘流计算的多级广义有限元法[J].航空学报,1996,17(2):144-148. |
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| 作者姓名： | 朱刚 沈孟育 刘秋生 王保国 |
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| 作者单位： | 清华大学工程力学系!北京，100084，清华大学工程力学系!北京，100084，清华大学工程力学系!北京，100084，清华大学工程力学系!北京，100084 |
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| 摘 要： | 将 Taylor-Galerkin广义有限元法和多级有限元的思想结合起来 ,并在人工粘性的处理上作了改进 ,构成了收敛速度和稳定性均较好的多级广义有限元法。利用该方法 ,并基于 N-S方程研究了二维跨音速叶栅流动。计算结果与实验结果符合较好。通过计算表明 ,该方法计算稳定、收敛较快 ,是叶轮机械内部跨音速流动强有力的计算手段
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| 关 键 词： | 跨音速流 叶栅流 粘性流 有限元法 |
MULTISTAGE GENERALIZED FINITE ELEMENT METHOD FOR TWO DIMENSIONAL VISCOUS TRANSONIC FLOW IN TURBOMACHINERY |
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| Zhu Gang,Shen Mengyu,Liu Qiusheng,Wang Baoguo.MULTISTAGE GENERALIZED FINITE ELEMENT METHOD FOR TWO DIMENSIONAL VISCOUS TRANSONIC FLOW IN TURBOMACHINERY[J].Acta Aeronautica et Astronautica Sinica,1996,17(2):144-148. |
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| Authors: | Zhu Gang Shen Mengyu Liu Qiusheng Wang Baoguo |
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| Institution: | Department of Engineering Mechanics, Tsinghua University, Beijing,100084 |
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| Abstract: | A multistage finite element method and a kind of generalized finite element method Taylor Galerkin method are combined properly to form a new kind of method, called multistage generalized finite element method, which has been improved in artificial viscosity. This method has better properties in convergence speed and stability. Using the improved method a two dimensional viscous transonic flow in turbomachinery is studied. The results are compared with those of experiment, which shows the advantages of this method. |
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| Keywords: | transonic flow cascade flow viscous flow finite element method |
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