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| 改进复合单元渗透系数调整法渗流自由面分析 |
| The Improved Variable Seepage Coefficient Method of the Compound Eement for Analyzing Free Surface Seepage |
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| DOI：10.3969/j.issn.1671-5322.2008.01.020 |
| 中文关键词: 自由面 渗流 有限元 改进复合单元渗透矩阵调整法 |
| 英文关键词: free surface seepage finite element improved variable seepage matrix method |
| 基金项目: |
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| 摘要点击次数: 4236 |
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| 中文摘要: |
| 在复合单元渗透系数调整法基础上,应用连续的罚函数对其改进,优化了此类算法的稳定性,提高了收敛速度和精度,并将此改进算法编制成相应的有限元分析程序,通过算例验证,可应用于稳定和非稳定渗流自由面边界复杂渗流场的高效精细模拟. |
| 英文摘要: |
| The improved variable seepage matrix method of the compound element was presented for the seepage problem with free surface in the light of usage of continuous penalty function.Then the disadvantage of unstable solution was optimized and the speed and precision were improved.It was validated programming the finite element method by a case.The complex seepage field about steady flow and unsteady flow was simulated by this method efficiently and subtly. |
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