| 摘要: |
| 为分析旋转孔的流动特性，提高空气系统一维仿真计算效率，综合考虑入射角、几何参数等主要影响因素，建立了旋转孔流动特性计算模型，并利用MATLAB/Simulink软件搭建其仿真模型。通过试验结果和商业软件Flowmaster对该模型进行验证，结果表明:该模型计算结果与试验结果误差在7.2%内，与CFD数值计算结果的最大误差不超过2.3%，而Flowmaster计算结果与试验结果最大误差达到8.94%。旋转孔模型计算结果准确度高，适用于不同类型轴向孔的模拟。 |
| 关键词: 空气系统 旋转孔 入射角 流量系数 |
| DOI： |
| 分类号: |
| 基金项目: |
|
| Computational Model of Rotating Orifice |
|
ZHU Peng-fei,LIU Zhen-xia,LV Ya-guo
|
|
(School of Power and Energy，Northwestern Polytechnical University，Xi’an 710072，China )
|
| Abstract: |
| 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 to 8.94%. 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. |
| Key words: Air system Rotating orifice Incidence angle Discharge coefficient |
