Fig. 1. Fuel assembly model

Fig. 2. Mesh model of triangular channel (a), pentagonal channel (b) and trapezoidal channel (c)

Fig. 3. Outlet velocity of different channels

Fig. 4. Outlet particle concentration of different channels with different particle sizes(a) Triangular channel, (b) Pentagonal channel, (c) Trapezoidal channel

Fig. 5. Axial velocity distribution of channels

Fig. 6. Velocity distribution in turbulent section of channels

Fig. 7. Triangular channel (a), pentagonal channel (b), trapezoidal channel (c) turbulent kinetic energy distribution

Fig. 8. Variation of particle concentration distribution in streamline direction

Fig. 9. Variation of particle concentration distribution in radius location (a) Triangular channel, (b) Pentagonal channel, (c) Trapezoidal channel

Fig. 10. Particle concentration distribution in channel wall (a) Triangular channel, (b) Pentagonal channel, (c) Trapezoidal channel

Fig. 11. Relationship between particle deposition rate and particle type

Fig. 12. Relationship between particle deposition rate and particle size

Fig. 13. Relationship between particle deposition rate and particle velocity

Fig. 14. Correlation degree of various factors affecting particle deposition rate