Multi-scale analysis of flow structures in fluidized beds with immersed tubes

- DWT, RP and RQA were used to capture effect of immersed tubes on hydrodynamics of fluidized bed.
- Insertion of tubes affected flow structures more pronounced at low gas velocities.
- The RP of meso-structures was more similar to that of main signal.
- Results showed that bed became less periodic when tubes were inserted.