污水排海扩散器的数值模拟与模型试验

发布时间：2018-03-12 15:03

本文选题：污水排海　切入点：扩散器　出处：《海洋环境科学》2016年06期 　论文类型：期刊论文

【摘要】：在污水排海工程的设计工作中,采用数值模拟与模型试验相结合的方法是一种有效的设计手段。本文结合某污水排海整治工程,首先采用Hydro Info-1D管网模型对该工程排污扩散器进行数值模拟,得到相应各喷口的流量、流速和弗劳德数,然后设计水工模型试验对数值模拟结果进行验证。模拟结果显示,两种排放流量工况下该扩散器各喷口出流均具有很好的均匀性,且弗劳德数均大于1,满足设计规范的要求。此外,通过将实验结果与计算结果对比,发现两种工况下流量的计算值与实验值的最大误差分别为2.18%和2.42%,流速的最大误差分别为2.19%和2.43%,说明该模型的计算结果具有较高的精度。研究结果表明:该模型可以准确的对污水排海扩散器进行模拟,且管道的设计结构参数满足实际运行要求。
[Abstract]:In the design of sewerage project, the method of numerical simulation and model test is an effective design method. First, the Hydro Info-1D pipe network model is used to simulate the sewage diffuser of the project, and the flow rate, velocity and Froude number of the corresponding nozzle are obtained. Then the numerical simulation results are verified by the hydraulic model test. The effluents of the diffuser have good uniformity and the Froude number is more than 1, which meets the requirements of the design code. In addition, the experimental results are compared with the calculated results. It was found that the maximum error of flow rate and experimental value were 2.18% and 2.42, respectively, and the maximum error of flow velocity were 2.19% and 2.43, respectively, which indicated that the calculation results of the model had high accuracy. In order to accurately simulate the sewerage diffuser, And the structural parameters of pipeline design meet the actual operation requirements.
【作者单位】：大连理工大学建设工程学部水利工程学院;
【基金】：国家自然科学基金资助项目(51309052);国家自然科学基金资助项目(51479022) 中央高校基本科研业务费专项资金(DUT15LK01) 辽宁省教育厅重点实验室基础研究项目(LZ2015012)
【分类号】：X55;X703

【相似文献】