地表水流与地下管流耦合的数值模拟研究  

Numerical simulation of coupling of surface flow and underground pipe flow

作　　者：赵仕霖 金生 杨宁 ZHAO Shi-lin;JIN Sheng;YANG Ning(Faculty of Infrastructure Engineering,Dalian University of Technology,Dalian 116024,China)

机构地区：[1]大连理工大学建设工程学部,大连116024

出　　处：《水动力学研究与进展（A辑）》2020年第4期454-460,共7页Chinese Journal of Hydrodynamics

基　　金：国家自然科学基金(51739011);中央高校基本业务费专项资金(DUT19LAB35);国家重点研发计划(2016-YFC0402707)。

摘　　要：借助于HydroInfo水利计算云平台,针对城市雨洪建模过程中的地表与地下排水管网水流交换问题进行了数值模拟研究。提出了一维地下排水管网与二维城市地表动态耦合的分区匹配算法。通过水从地表流向排水管网、水从管网溢出到地面和溃坝洪水流经管网区等算例的数值计算,与实验室结果进行了比较,对稳态以及非稳态水力条件下计算平台处理地表-地下管网流量交换问题的能力进行了检验。结果分析表明了采用的云计算平台模拟该问题的可行性以及算法的正确性。With the help of the cloud platform of water conservancy computing named HydroInfo, the numerical simulation study on the surface/sewer flow exchange in the process of urban flood modeling is carried out. A partition matching algorithm based on dynamic coupling between one-dimensional underground drainage network and two-dimensional urban surface is proposed. The numerical results are compared with laboratory results by numerical calculation of water flowing from the surface to the drainage network, water spilling from the network to the surface, and dam break flood flowing through the pipe network area. The ability of calculation platform to deal with the problem of surface/sewer flow exchange in steady and unsteady flow conditions is tested. The results show that the cloud computing platform used to simulate the problem is feasible and the algorithm is correct.

关 键 词：城市雨洪 云计算 水动力 耦合模型 流量交换 

分 类 号：TV131.4[水利工程—水力学及河流动力学]