| 王颖,郭世花.湖泊底泥中磷释放的随机动力学模型[J].水利学报,2003,34(11):0071-0077 |
| 湖泊底泥中磷释放的随机动力学模型 |
| Kinetic model for simulating phosphorus released from the sediment of lake |
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| DOI： |
| 中文关键词: 底泥 动力学模型 磷释放 |
| 英文关键词: sediment of lake kinetic model phosphorus released |
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| 中文摘要: |
| 本文从随机过程的观点出发，推导出湖泊底泥磷相对释放量概率密度函数的随机微分方程，并给出了相应的定解条件。利用隐式差分法进行求解，分析了磷释放的均方差系数(D)、吸附系数(K1)、解吸系数(K2)及其对磷相对释放量概率函数分布的影响情况。所建立的磷释放随机动力学模型计算结果与实验数据吻合良好。 |
| 英文摘要: |
| Based on the principle of stochastic analysis, the differential equation of the probability density function for the phosphorus amount released from the sediment of lake is established and the corresponding conditions for determining the solution are also deduced. The equation is solved by implicit differentiation. The effect of mean square deviation coefficient, sorption coefficient and desorption coefficient on the probability function distribution of the relative amount of phosphorus are analyzed. The validity of the model is verified by experiment data. |
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