Erosion and Deposition of Particles in a Periodic Forced Flow
In this paper we present an experimental study of the erosion and accumulation of particles produced by a periodic forced flow in two domains connected by a channel. For this purpose a thin layer of sand is deposited on the bottom of the channel and one of these domains. Then, a periodic flow rate is produced with the aid of a block partially submerged in the fluid and subject to a sinusoidal vertical motion. The evolution of the system was observed for thousands of periods. The aim of this study is to model the particle transport in a tidal induced flow between an estuary and the open sea. The erosion and accumulation zones observed in our study are compared with results obtained in numerical simulations and observational works.
KeywordsChannel Width Liquid Layer Strouhal Number Particle Transport Point Vortex
Authors acknowledge DGAPA-UNAM by support under project IN116312, “Vorticidad y ondas no lineales en fluidos”.
- López-Sánchez EJ, Ruiz-Chavarría G (2012) Numerical study of water flow in a channel output with periodic forcing. Experimental and theoretical advances in fluid dynamics. Springer, Berlin ISSN 1863–5520Google Scholar
- López-Sánchez EJ, Ruiz-Chavarría G (2013a) Transport of particles in a periodically forced flow. Experimental and computational fluid mechanics. Springer, Heildelberg ISSN 1431–2492Google Scholar
- López-Sánchez EJ, Ruiz-Chavarría G (2013b) Vorticity and particle transport in periodic flow leaving a channel. Eur J Mech B/Fluids 42:92–103Google Scholar