Wave Interaction with Fluid Mud in Rectangular Trench

by Francis C. K. Ting, Texas A&M Univ, College Station, United States,

Document Type: Proceeding Paper

Part of: Engineering Mechanics

Abstract: Wave interaction with fluid mud in a rectangular trench is studied theoretically based on small-amplitude wave theory. The problem was formulated using the Voigt model for an viscoelastic medium for the fluid mud. It is found that the wave-induced motion in the trench varies significantly depending on the elasticity and viscosity parameters. For a soft viscous mud layer in the trench, viscous damping can be of a higher order of magnitude than that due to bottom friction alone such that wave scattering from the trench is significantly reduced.

Subject Headings: Trenches | Mud | Water waves | Fluid flow | Viscoelasticity | Motion (dynamics) | Elastic analysis | Viscosity

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