Gas-liquid-solid three-phase flow is common in various fields,making it crucial to accurately and efficiently describe its dynamic behaviors.To better perform the gas-liquid-solid three-phase simulations,a coupling co...Gas-liquid-solid three-phase flow is common in various fields,making it crucial to accurately and efficiently describe its dynamic behaviors.To better perform the gas-liquid-solid three-phase simulations,a coupling code based on GPU named as CoSim-FVDEM is developed,which combines the finite volume method(FVM)and the discrete element method(DEM).This code encompasses unresolved,resolved and resolved-unresolved coupling methods,making it suitable for three-phase flow simulations involving solid particles of various sizes.A series of cases are conducted to validate the accuracy of the developed coupling algorithm,including complex dam breach flow,water entry test of a single sphere and multi-sphere within rotating roller.Finally,a gas-liquid-solid three-phase flow numerical experiment is performed,which involves the bi-disperse granular systems in a rotating roller.Base on the numerical results,the dynamic behaviors of the three-phase flow are analyzed and the computational efficiency is evaluated.The results indicate that the developed coupling code can better be used for the dynamic analysis of large-scale gas-liquid-solid three-phase flow.展开更多
基金supported by the projects of National Natural Science Foundation of China(grant Nos.52479102 and 52079067).
文摘Gas-liquid-solid three-phase flow is common in various fields,making it crucial to accurately and efficiently describe its dynamic behaviors.To better perform the gas-liquid-solid three-phase simulations,a coupling code based on GPU named as CoSim-FVDEM is developed,which combines the finite volume method(FVM)and the discrete element method(DEM).This code encompasses unresolved,resolved and resolved-unresolved coupling methods,making it suitable for three-phase flow simulations involving solid particles of various sizes.A series of cases are conducted to validate the accuracy of the developed coupling algorithm,including complex dam breach flow,water entry test of a single sphere and multi-sphere within rotating roller.Finally,a gas-liquid-solid three-phase flow numerical experiment is performed,which involves the bi-disperse granular systems in a rotating roller.Base on the numerical results,the dynamic behaviors of the three-phase flow are analyzed and the computational efficiency is evaluated.The results indicate that the developed coupling code can better be used for the dynamic analysis of large-scale gas-liquid-solid three-phase flow.
