基于复杂性理论的不同粒子流化特性研究

Characteristic Research of Two Different Particles on Complexity Theory

对不同粒径、不同物性的固体颗粒 (A/B)两类在流体床中的压力脉动时间序列 ,采用复杂性算法对其进行分析 ,研究结果表明 :从涨落复杂性比较来看 ,在过渡区内 ,两者都存在“涨落转型区”,但 A类粒子充气性较好 ,容易达到相对均一的状态 ;在两种颗粒密度相差较大的 A类粒子中 ,其涨落复杂性曲线也存在较大区别 ,从而证实了粒径。

Complexity theory is adopted to analyze the series of pressure fluctuation signals of two different diameter physical property particles (A/B).Experiment shows that fluctuation complexity can identify the different fluidized characters from fixed bed to bubbling fluidization.Particle A can become relatively uniformity easily;similarly,the curve of fluctuation complexity can identify the different diameter of particle A.It testify that diameter physical property,like bubble,all are important factors in characteristic research of fluidized bed.