Computational Model of Rotating Orifice Considering Incidence Angle

In order to analyze the flow characteristics of rotating orifice,and improve the efficiency of air system one-dimensional simulation,the computational model of rotating orifice was developed considering the main factors,such as,incidence angle,geometric parameters. The simulation model was constructed based on MATLAB/Simulink. The model was verified by experimental data and commercial software Flowmaster. The results show that error between the model and experimental results is within 7.2%,and error between the model and CFD results does not exceed 2.3%. However,error between the model and Flowmaster results is close to8.94%. The results show that model of rotating orifice has high precision,and can be applied to simulate different type of axial orifices,which is of great significance for air system one-dimensional simulation.