【摘要】 利用一维数学模型模拟了挟沙水流中石油类污染物输移转化现象。在所使用的数学模型中引入了基于固-液两相流基本守恒关系得到的吸附态、溶解态污染物输移转化方程,用以反映泥沙运动、河床冲淤与污染物输移转化的强耦合过程。文中对水槽及天然河流中石油类污染物输移过程的模拟结果表明,本文结果较好地反映了泥沙运动、河床冲淤对污染输移的影响,可用于挟沙水流中石油类污染物输移转化的模拟。更多还原

【Abstract】 In this paper the transport and fate of petroleum hydrocarbons in sediment flows is simulated by a one dimensional numerical model.The transport equations for dissolved and adsorbed pollutants are derived based on the basic governing equations of solid-liquid two phase flow,which permit the model can be applied to simulate the coupled processes of channel flow,sediment transport,river morphology,and petroleum hydrocarbon transport.Comparisons between simulations and observations show that the model developed in this paper is applicable to the transport and fate of petroleum hydrocarbons in sediment laden flows.更多还原