【摘要】 用时间序列参数模型来分析两相流的状态．通过实验装置来拾取两相流的压力、压差信号，采集有序数据组．借助于ＭＡＴＬＡＢ语言及其软件工具包将有序数据拟合为ｎ阶自回归参数模型ＡＲ（ｎ），优选模型阶数ｎ值，通过ｎ值的变化来考察两相流的流态．更多还原

【Abstract】 Acquired from a series of specially designed flow experiments, the signals of flow pressure and pressure difference can be analysed by time series modelling to determine the status of the two phase flow. Stored in sequential groups, the acquired data have been fitted with time series models using MATLAB software package and its system identification toolbox. Flow status determination is carried out subsequently by analyzing the identified model order n更多还原