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1 Fundamental Equations of Two-fluid Model The complicated debris flow is simplified as two-fluid model of solid and liquid two-phase flow,of which the liquid phase is slurry with the fine particle and the solid phase is the coarse particle separated from slurry.The movement of each phase may be described by using a group of equations.The interaction of the two phases is cou-
1 Fundamental Equations of Two-fluid Model The complicated debris flow is simplified as two-fluid model of solid and liquid two-phase flow, of which the liquid phase is slurry with the fine particle and the solid phase is the coarse particle separated from slurry The movement of each phase may be described by using a group of equations. The interaction of the two phases is cou-