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FILTRI ELETTROSTATICI A DOPPIO STADIO. DESCRIZIONE MATEMATICA E VERIFICA DELL'EFFICIENZA DI RIMOZIONE DI PARTICELLE RESPIRABILI
AN EFFICIENT SOLVER FOR NEARSHORE FLOWS
Eds. W. Blarn & C.A. Brebbia, WIT Press, Southampton
Assembling and Solution in Structural Analysis using Parallel collective MPI operations
Composites 2009 – 2nd ECCOMAS Thematic Conference on the Mechanical Response of Composits . 1-3 Aprile 2009 Imperial College London UK (2009) - Proceedings su supporto informatic
Macrovortices-induced horizontal mixing in compound channels
We investigate, within the framework of the
nonlinear shallow water equations (NSWE), the generation
and evolution of large-scale eddies with vertical
axis (macrovortices hereinafter) which are responsible
for much of the horizontal mixing occurring at the
boundaries between the main channel and the flood
planes of a compound channel. We show that the
mechanism of generation of vorticity is essentially
inviscid and is analogous to that occurring at a curved
shock. Numerical experiments performed by means of a
recently developed shock-capturing model for the solution
of the NSWE, and described in Brocchini et al.
(2001), clarify some features of macrovortices generation
and allow us to quantify the momentum transfer across
the channel
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