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Nonlinearity in Oscillatory Flow over Sand Ripple

2009/09/12 by Ruma Dutta, Ethan J. Kubatko, Dutta, Ruma +2
Earth and Planetary Sciences · Engineering · Physics and Astronomy · #Aeolian processes and effects #Coastal and Marine Dynamics #Computational Physics (physics.comp-ph) #FOS: Physical sciences #Fluid Dynamics (physics.flu-dyn) #Fluid Dynamics and Vibration Analysis #physics.comp-ph #physics.flu-dyn

paper · pdf · doi:10.48550/arxiv.0909.2276

This is 5 pages with 4 figures. submitted to Mechanica

arxiv created 2009/09/12 · openalex publication_date 2009/09/12 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

In this report, We investigated the nonlinear phenomena in the study of flow dynamics of velocity component. In our studies, we observed nonlinear term in the vertical component of velocity by vittori et al \citevit The time series simulation of vertical component which increases with Reynold stress value. We developed direct numerical simulation under two dimensional grid system to study the flow dynamics and vorticity parameter. Flow pattern and flow dynamics near wavy boundary wall in the victinity of ripple bottom was readdressed under direct numerical simualtion(DNS) framework.

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