TY  - EJOU
AU  - Wu, Haitao 
AU  - Gu, Shenglong 

TI  - Research on Channel Ice Sheet Stability Based on WC-TLSPH
T2  - The International Conference on Computational \& Experimental Engineering and Sciences

PY  - 2024
VL  - 31
IS  - 1
SN  - 1933-2815

AB  - Subglacial water conveyance is the prevalent operational mode for cold-region channels during winter, necessitating the stability of ice covers during flow regulation. The coupling of Weakly Compressible Smoothed Particle Hydrodynamics (WCSPH) and Total Lagrangian Smoothed Particle Hydrodynamics (TLSPH) provides a robust computational framework for addressing the intricate fluid-structure interaction in channel-ice-water systems. This study employs WC-TLSPH to analyze the influence of flow variations on the stability of channel ice covers, determining the range of extreme hydraulic pressure changes sustainable by ice covers of varying widths and thicknesses. Results indicate that flow variations are a significant factor affecting the stability of channel ice covers, with excessive flow changes leading to ice cover fracturing. Concerning the critical parameters of ice cover thickness and width, an increase in ice cover width initially amplifies the range of extreme hydraulic pressures it can withstand before diminishing, while an increase in ice cover thickness reduces the magnitude of pressure decrease and enhances the magnitude of pressure increase. Moreover, ice covers exhibit notably greater resilience to hydraulic pressure increase compared to pressure decrease. These findings bear crucial implications for guiding the design and operation of cold-region channels, suggesting that, once stable ice cover formation is achieved, elevating water levels within appropriate limits could effectively preserve ice cover stability.
KW  - Subglacial water conveyance; WC-TLSPH; ice cover stability

DO  - 10.32604/icces.2024.011231