Instability of Water-Fluid Mud Interfaceby P. D. Scarlatos, Florida Atlantic Univ, Boca Raton, United States,
A. J. Mehta, Florida Atlantic Univ, Boca Raton, United States,
Abstract: Erosion and entrainment of fluid mud are treated by means of shear flow analysis. The water-fluid mud system is considered as a layered system of two continua separated by a distinct interface at the lytocline. Horizontal movement of the overlaying water creates velocity discontinuity and shearing flow conditions along the interface which eventually lead to generation of a vortex sheet. Rates of entrainment are quantified by simulating the growth of a finite thickness vortex sheet. The governing equations are solved numerically. The theoretical results are in qualitative agreement with laboratory data.
Subject Headings: Shear flow | Mud | Shear stress | Water flow | Vortices | Entrainment | Fluid flow | Sheet flow
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