There are both a chaotic mixing region and an isolated mixing region for the high-viscosity laminar flow mixing system.Increasing chaotic mixing is the effective method to enhance mixing performance.To obtain good mixing performance in the high viscosity fluid mixing system

flexible impeller together with floating particles were used in the glycerol mixing system.The largest Lyapunov exponent(LEmax)was obtained to study the relationship between chaotic mixing degree and power consumption(Pv).It indicated that only adding the floating particles had no effect on LEmax

but the flexible impeller could contribute to enlarging LEmax.When Pv was 2000 W·m-3

the LEmax of the primary system could be enlarged by 10.29% while using flexible impeller

and when floating particles and flexible impeller worked together

LEmax could be enlarged by 30.86%.At a low Pv(Pv≤2000 W·m-3)

the chaotic mixing of high-viscosity fluid using floating particles synergistically with flexible impeller was much better than the system using the traditional turbine impeller.