A Simplified CFD Numerical Simulation Method Based on the Orifice Air Supply of the Rail Vehicles
The airflow distribution of the urban rail vehicle is one of the key indicators to evaluate the passengers' thermal comfort. Orifice air supply is adopted as a main air supply method in many vehicles due to its characteristics including uniform ventilation,lower local temperature difference,and so on. However,when using CFD software to simulate the airflow distribution of rail vehicles,it leads to higher computationally intensive,hardware-demanding and time-consuming due to its extremely complex physical model. Considering these problems,we proposed a strip model,which is a simplified CFD numerical simulation method based on the orifice air supply. The feasibility of the model was verified using a rail vehicle. The results show that the proposed strip model can simulate the airflow distribution of original model.
rail vehiclesorifice air supplyairflow distributionporous jumpstrip slit mode
万方数据
维普
