含油污水海洋处置的混合区范围界定探讨

摘要

Using depth-averaged two-dimensional convection-diffusion model, a range of far-mixing zone is obtained according to the simulated maximum conscentration of each time period.On the basis of validated good hydrodynamic model, Cormix model calculates near field mixing zone in case of selection minimum tide flow-rate.Sewage system test with tidal flow in computer-controlled tank was carried out, and calculations and experimental values compliance is good.Combined far-field and near-zone model simulation results, the research determines the location and range of the mixing zone, providing a more effi-cient and practical solution for this field.%本文建立深度平均二维对流扩散模型进行含油污水排海的浓度场数值模拟,根据各时刻的最高瞬时浓度,得出了远区混合区的范围.利用验证良好的水动力模型的计算结果,Cormix模型选择最小的潮流流速,计算了近区混合区范围,并在计算机控制的潮汐流动水槽中进行了系统的排污试验,计算结果与试验值符合性良好.结合远区和近区模型的模拟结果,最终确定了混合区的位置、范围,为含油污水排海工程的混合区范围确定提供了一种较为高效、实用的解决途径.