Fig. 1. Geometric diagram of transversally corrugated tube

Fig. 2. Schematic diagram of experimental equipment

Fig. 3. Snapshot of experimental device

Fig. 4. Photo set of solidification horizontal pipeline cut and cross-sections

Fig. 5. Distributions of temperature (a) and solidification layer thickness (b) in pipe with different number of grid nodes (color online)

Fig. 6. Temperature distribution (a) and thickness distribution of solidification layer (b) inside the pipe during blockage (color online)

Fig. 7. Comparison of experimental and simulation results (color online)

Fig. 8. Schematic diagram of filling pipe (color online)

Fig. 9. Node diagram for simulation model

Fig. 10. Variations of fluid temperature (a) and solidification layer thickness (a) with time at different positions inside the pipe

Fig. 11. Change of pressure drop with time