| 土壤中非稳定耦合渗流问题的拟解析解及压力动态特征 |
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| 引用本文： | 薛强,梁冰,曹国强.土壤中非稳定耦合渗流问题的拟解析解及压力动态特征[J].灌溉排水学报,2002,21(4):21-24. |
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| 作者姓名： | 薛强 梁冰 曹国强 |
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| 作者单位： | 辽宁工程技术大学力学与工程科学系,辽宁,阜新,123000 |
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| 基金项目： | 国家教育部资助项目 ( 2 0 0 0 172 )，辽宁省自然科学技术基金资助项目 ( 2 0 0 110 10 6 3) |
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| 摘 要： | 在考虑多孔介质中流体流动与岩土介质耦合作用的前提下 ,基于流固耦合力学理论 ,建立了土壤中非稳态渗流问题的流固耦合数学模型 ,并对该强非线性数学模型采用摄动法及积分变换法进行拟解析求解 ,讨论其压力动态特征 ,分析压力随饱和度 S及时间 t变化的情况 ,为实验室确定压力饱和度渗透率三者之间的关系提供理论依据。
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| 关 键 词： | 非稳态渗流 数学模型 流固耦合 拟解析解 |
| 文章编号： | 1000-646X(2002)04-0021-04 |
| 修稿时间： | 2002年8月4日 |
An Approximate Analytical Solution for Unsteady Coupling Seepage Flow in Soil and Its Dynamic Pressure Behavior |
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| XUE Qiang,LIANG Bing,CAO Guo-qiang.An Approximate Analytical Solution for Unsteady Coupling Seepage Flow in Soil and Its Dynamic Pressure Behavior[J].Journal of Irrigation and Drainage,2002,21(4):21-24. |
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| Authors: | XUE Qiang LIANG Bing CAO Guo-qiang |
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| Abstract: | With considering the interaction of fluid flow and solid deformation in porous media, a coupling numerical model for unsteady coupling seepage flow in soil is developed, based on the theory of fluid-solid interaction mechanics. In this nonlinear numerical model, perturbation and integral transform are adopted for getting an approximate analytical solution. Pore pressure along level distance at different saturation (S) and time (t) are discussed. The model is helpful for determining interactions of pressure - saturation - permeability in laboratory. |
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| Keywords: | unsteady seepage numerical model fluid-solid interaction approximate analytical |
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