| 分步法在二维不恒定流计算中的应用 |
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| 引用本文： | 巨江,钱善琪. 分步法在二维不恒定流计算中的应用[J]. 西安理工大学学报, 1990, 0(4) |
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| 作者姓名： | 巨江 钱善琪 |
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| 作者单位： | 陕西机械学院水利水电学院，陕西机械学院水利水电学院 |
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| 摘 要： | 本文根据分步法原理,将平面二维不恒定流方程分成对流、扩散两个部分。对流算子用特征线求解,扩散算子和水流连续方程用三角形差分格式,既满足不同微商的数学性质,又适应不规则的边界形状。文中给出了计算结果与分析解的比较。
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| 关 键 词： | 分步法 不恒定流 对流 扩散 |
Application of the Method of Fractional Steps in Computation of Two Dimensional Unsteady Flow |
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| Ju Jiang Qian Shanqi. Application of the Method of Fractional Steps in Computation of Two Dimensional Unsteady Flow[J]. Journal of Xi'an University of Technology, 1990, 0(4) |
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| Authors: | Ju Jiang Qian Shanqi |
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| Affiliation: | Ju Jiang Qian Shanqi |
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| Abstract: | Based on the priciple of the method of fractional steps, the two dimensional shallow equations arc divided into two parts of advection and diffusion. The first one is solved by characteristic theory, the second one and equation of flow continuity are in triangular differential scheme, Which is suitable to not only mathematical characteristic, but alse arbitrary shape of flow domain. Comparison of computed results and theoretical solution shows satisfactory agreement. |
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| Keywords: | fractional steps unsteady flow advection diffusion |
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