Analysis and inspection on siltation of intercepting combined sewer system

作者：Chen Yong Min; Zhang Yi Ping; Zhou Yong Chao^*; Zhang Tu Qiao

来源：Journal of Hunan University(Natural Sciences), 2012, 39(2): 71-75.

• BSS model
• Dry weather flow
• Field measurement
• Field measurement data
• Selection methods
• Siltation
• Siltation mechanisms

In order to investigate the siltation mechanism of intercepting well with pressure, CFD was applied for numerical simulation, which was validated with field measurement data of sonar. On the basis of critical BSS model based on DPM, the probability selection method of GA was applied from a new point of view to put forward "probability sedimentation" model of particle. This model worked effectively on the simulation of silt surface and relatively siltation depth, which was validated with field measurement data of sonar. The results have shown that the silt surface of x-direction is a slope and there is a bulge with a location insensitive to flow. The silt surface of y-direction is concave and the middle surface swells while both sides tend to be flat because of scouring. The field measurement of sonar has shown that the silt depth in intercepting well is strongly relative to dry weather flow while the siltation condition of main intercepting pipe is relative to intercepting well.

• 出版日期2012
• 单位浙江大学