| 含湍流和多种三维作用的多级轴流压气机子午流计算程序 |
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| 引用本文： | 李士明,陈矛章.含湍流和多种三维作用的多级轴流压气机子午流计算程序[J].航空动力学报,1993,8(3):213-216,305. |
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| 作者姓名： | 李士明 陈矛章 |
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| 作者单位： | 清华大学，北京航空航天大学 武汉市华中理工大学动力系压缩机室430074 |
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| 摘 要： | 径向掺混计算在高级负荷和低展弦比结构的多级轴流压气机流场分析和设计中具有重要作用。作者已用严格理论表明 ,这一掺混是由湍流和多种三维流动因素作用决定的。本文给出将这一严格理论转化成为工程计算程序的方程组、数值方法及有关细节。其中 ,给出耗散项的关联项、压力—速度关联项、密度周向非均匀变化量的处理方法 ,同时 ,引入一个新的转焓表达式以简化问题。计算结果与 5台压气机的试验结果相吻合 ,而且表现为优于其它理论的结果。此程序计算速度快 ,收敛性好。在一定的亚音流范围内可以投入实际应用并可望能获得好的结果。
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| 关 键 词： | 径向掺混 子午流 周向非均匀 湍流 计算机程序 |
| 收稿时间： | 6/1/1992 12:00:00 AM |
| 修稿时间： | 9/1/1992 12:00:00 AM |
A COMPUTER PROGRAM FOR MERIDIONAL FLOWS IN MULTISTAGE AXIAL FLOW COMPRESSORS WITH TURBULENCE AND MULTI-EFFECTS OF 3-D FLOWS |
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| Li Shiming and Chen Maozhang.A COMPUTER PROGRAM FOR MERIDIONAL FLOWS IN MULTISTAGE AXIAL FLOW COMPRESSORS WITH TURBULENCE AND MULTI-EFFECTS OF 3-D FLOWS[J].Journal of Aerospace Power,1993,8(3):213-216,305. |
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| Authors: | Li Shiming and Chen Maozhang |
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| Institution: | Tsinghua University;Beijing University of Aeronautics and Astronautics |
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| Abstract: | It has been shown early by the authors that the spanwise mixing is caused by turbulent diffusion and different kinds of three dimensional flow effects.This paper introduces a computer program based on this theory. A new kind of rotary enthalpy has been defined and its related equation has been derived to simplify the present problem. The details for modeling all the unknown correlation mixing terms involved in the computations and the numerical scheme have been also presented. The results obtained agree well with the experiments for five compressors. The results also show some improvement over the previous theories. |
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