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We analyze the consolidation of freshly deposited cohesive and non-cohesivesediment by means of particle-resolved direct Navier-Stokes simulations basedon the Immersed Boundary Method. The computational model is parameterized bymaterial properties and does not involve any arbitrary calibrations. We obtainthe stress balance of the fluid-particle mixture from first principles and linkit to the classical effective stress concept. The detailed datasets obtainedfrom our simulations allow us to evaluate all terms of the derived stressbalance. We compare the settling of cohesive sediment to its non-cohesivecounterpart, which corresponds to the settling of the individual primaryparticles. The simulation results yield a complete parameterization of theGibson equation, which has been the method of choice to analyze self-weightconsolidation.

Consolidation of freshly deposited cohesive and non-cohesive sediment: particle-resolved simulations