Hydraulic Simulation and Analysis of an Urban Center’s Aqueducts Using Emergency Scenarios for Network Operation: The Case of Thessaloniki City in Greece
Hydraulic Simulation and Analysis of an Urban Center’s Aqueducts Using Emergency Scenarios for Network Operation: The Case of Thessaloniki City in Greece
复制标题
城市中心渡槽网络运行紧急情况下的水力模拟与分析：以希腊塞萨洛尼基市为例
作者：
A. Mentes;P. Galiatsatou;Dimitrios Spyrou;A. Samaras;P. Stournara
目前的工作旨在为希腊塞萨洛尼基市的渡槽开发一个水力模拟模型，以模拟管网的当前运行状态及其对其中一条渡槽故障造成的紧急情况的反应。在延长周期模拟(EPS)模式下，使用Water GEMS软件进行的水力模拟需要估计城市所有区域的需水量，并在正常和非正常条件下对模型进行校准。设定的标定参数包括管路的粗糙度系数和节流控制阀的水头损失特性。城市渡槽的失效面临着五个管网运行紧急情景的开发和水力模拟，其中两个场景考虑了所研究的渡槽可能的互联互通。这些方案包括适当确定的输水管道间歇供水时间表，是在城市不同地区之间公平和公平地管理水的基础上制定的，并假定危机期间采取了少量干预/作业。进行的模拟表明，系统的运行符合规定的时间表，并且在考虑城市输水管道的互联互通时，改善了对网络某些区域有限水资源的管理。
The present work aims at developing a hydraulic simulation model for the aqueducts of Thessaloniki city in Greece to model the current operating state of the network, as well as its response to emergency conditions resulting from failure in one of them. Hydraulic simulations performed using WaterGEMS software in an extended period simulation (EPS) mode entail estimating water demand in all areas of the conurbation and calibrating the model under both normal and abnormal conditions. Calibration parameters set include the pipes’ roughness coefficients and head loss characteristics of throttle control valves (TCVs). Failure in the city’s aqueducts is confronted with the development and hydraulic simulation of five emergency scenarios of network operation, two of which consider possible interconnections of the studied aqueducts. These scenarios, which include appropriately defined intermittent water supply schedules for the aqueducts, are created on the basis of fair and equitable management of water among the different areas of the city, also assuming a small number of interventions/operations during the crisis. The simulations performed reveal quite a satisfactory compliance of the system’s operation with the defined schedules, and an improved management of limited water reserves in some areas of the network when considering interconnections of the city’s aqueducts.