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地铁站台的气流流动属湍流流动,采用CFD对站台通风方式进行模拟时需要确定相关的边界条件和适用的湍流模型。通过对既有地铁站台气流状况的现场测试,获得了有参考价值的数据;建立了CFD模型。CFD模拟结果与测试数据的比较表明,所选的湍流模型能正确模拟复杂的站台气流流动。
The flow of the subway platform is turbulent, and the relevant boundary conditions and applicable turbulence models need to be determined when CFD is used to simulate the platform ventilation. Through the field test of the existing metro station airflow conditions, obtained the data of reference value; established the CFD model. Comparisons of the CFD simulation results with the test data show that the selected turbulence model can accurately simulate the flow of complex platform airflow.