Numerical Investigation of the Flow Field inside a Manhole-Pipe Drainage System

摘要: Urban drainage networks contain a large number of structures. The manhole is the most common and important as it connects pieces sewer pipes to form networks. Understanding hydraulics manholepipe system this may sometimes become bottlenecks systems. In study, flow structure specific manhole-pipe was analysed numerically in view further research investigate sediment suspended solid transport system. numerical model compared with discharge water pressure/depth data from an experimental model. Different discharges levels at inlet pipe were applied, corresponding change analysed. Two scenarios tested: (1) free surface (2) pressurized condition pipe. analysis, k-e turbulent used within open source CFD tool OpenFOAM®. results showed similar flows pressure that work. patterns observed different discharges. This pattern will give insight assessing pollutant inside