Simulation of Control Process of Fluid Boundary Layer on Deposition of Travertine Particles in Huanglong Landscape Water Based on Computational Fluid Dynamics Software (CFD)

Research reveals that the deposition of calcium carbonate particles in Huanglong's colorful pools is significantly influenced by fluid boundary layers and low-velocity zones, particularly behind baffles. Under horizontal flow conditions, particle concentration peaked at 1.06%, with substantial aggregation and settling observed at the bottom right of the channel, where boundary layer effects are strongest. Inclined surfaces with baffles further enhanced deposition in low-speed regions, with calcium carbonate deposition rates ranging from 4.06 mm/a to 81.7 mm/a, closely aligning with field observations. The study employed Particle Image Velocimetry (PIV) for real-time flow measurements and computational fluid dynamics (CFD) simulations, including the Discrete Phase Model (DPM), to track particle trajectories and deposition rates, providing critical insights into sedimentation dynamics in aquatic environments.

Liu, X., Gao, W., Zuo, Y., Sun, D., Zhang, W., Zhang, Z., Liu, S., Dong, J., Wang, S., Xu, H., Chen, H., & Xu, M. (2025). Simulation of Control Process of Fluid Boundary Layer on Deposition of Travertine Particles in Huanglong Landscape Water Based on Computational Fluid Dynamics Software (CFD). Water, 17(5), 638. https://doi.org/10.3390/w17050638