Numerical Simulation on Hydraulic Regime of a Single-stack Drainage System for Super-high-rise Building

摘要

As the demand of the economic development and living environment, the height of the high-rise building becomes higher and higher, while the difficulty for drainage system design is encountered subsequently.There are two types of method to study the previous high-rise building drainage system: experiment and numerical analysis.After all, the experimental condition.is limited to study the super-high-rise building drainage system.Recently, numerical method is drawn more and more attention to simulate the performance of hydraulic property of the drainage system for super-high-rise building.In this paper, the air pressure fluctuation in a single-stack drainage system is analyzed by multiphase flow numerical simulation method,and the relation between the dimensionless pressure and flow rate is obtained.It is shown that the numerical simulation results are basically consistent with that of the verification experiment in the single-stack drainage system, and the relation between air pressure and the square of water flow rate is approximately linear.