| 张富仓,康绍忠,潘英华.饱和-非饱和土壤中吸附性溶质水动力弥散实验研究[J].水利学报,2002,33(3):0084-0090 |
| 饱和-非饱和土壤中吸附性溶质水动力弥散实验研究 |
| Experimental study on hydrodynamic dispersion of adsorption solute in saturated-unsaturated soil |
| |
| DOI： |
| 中文关键词: 吸附性溶质 水动力弥散系数 阻滞因子 |
| 英文关键词: adsorption solute,hydrodynamic dispersion coefficient,retardation factor |
| 基金项目: |
|
| 摘要点击次数: 3967 |
| 全文下载次数: 95 |
| 中文摘要: |
| 本文通过室内土柱对轻壤土和重壤土饱和、非饱和水动力弥散实验，得到了吸附性溶质水动力弥散参数的计算方法。根据一维饱和弥散实验结果，由相应的解析解，用简化计算方法求得饱和水动力弥散系数Dsh和阻滞因子R；对于一维非饱和弥散实验，在分析溶质的水动力弥散理论的基础上，推导出求解非饱和土壤水动力弥散系数Dsh(θ)的计算公式。 |
| 英文摘要: |
| Experiments on hydrodynamic dispersion in saturated-unsaturated light loam and heavy loam soil are carried out. A method for calculation of definite hydrodynamic dispersion parameters for adsorption solute is deduced. According to the data of 1-D saturated dispersion experiment the saturated dynamic dispersion coefficient and retardation factor are obtained using simplified method.On the basis of theoretical analysis the formula for calculating the solute hydrodynamic dispersion of unsaturated soil is also attained. |
|
查看全文
查看/发表评论 下载PDF阅读器 |
| 关闭 |