CAJ | 학술논문

引入混沌特征参数关联维数（D_2）和柯尔莫哥洛夫熵fKolmogoroventropy，Ke），结合颗粒交换瞬时分布图，系统研究了流化风速、床存最对双支腿流化床颗粒在支腿问的混合交换特性及其影响规律。结果表明，双支腿流化床内颗粒在支腿问的交换具有混沌特性。D_2和托均可以表征支腿间颗粒混合交换行为。D_2和K_E毛均随着气速的增加先减小后增加，系统混沌程度先减弱后增强；D_2和^名随着床料高度的增加均增加。支腿间颗粒交换方式包括单颗粒交换和颗粒闭簇交换，颗粒团簇交换方式会促进系统D_2和K_E增加，促使系统更混沌。
인입혼돈특정삼수관련유수（D_2）화가이막가락부적fKolmogoroventropy，Ke），결합과립교환순시분포도，계통연구료류화풍속、상존최대쌍지퇴류화상과립재지퇴문적혼합교환특성급기영향규률。결과표명，쌍지퇴류화상내과립재지퇴문적교환구유혼돈특성。D_2화탁균가이표정지퇴간과립혼합교환행위。D_2화K_E모균수착기속적증가선감소후증가，계통혼돈정도선감약후증강；D_2화^명수착상료고도적증가균증가。지퇴간과립교환방식포괄단과립교환화과립폐족교환，과립단족교환방식회촉진계통D_2화K_E증가，촉사계통경혼돈。
Chaotic characteristic parameters such as correlation dimension （D2） and Kolmogorov entropy （KE） were used to characterize solids exchange characteristics in a doubleleg fluidized bed. Gas velocity and bed material inventory of solids exchanging characteristics were investigated combined with the solids exchange snapshots. The results show that behavior of solids exchanged between the two legs acts as chaos characteristics. It was found that the D2 and Ke could be utilized effectively to explain the nonlinear dynamic performance of solids exchange between two legs in a double-leg fluidized bed. With the gas velocity growing, Both D2 and Ke firstly decrease and then increase, which shows that the chaos of the system intensified; with addition of the height of bed material inventory, D2 and Ke increase. Single particle and cluster are two ways of solids exchange between the two legs, and with increase of the cluster, Both D2 and KE increase and the behavior of solids exchange is more chaotic.