A remeshed vortex method for mixed rigid/soft body fluid–structure interaction

Soft streaming – flow rectification via elastic boundaries

“…Next, we compare our theory against known analytical results in the rigidity limit (Raney, Corelli & Westervelt 1954;Bertelsen et al 1973), and direct numerical simulations performed using remeshed vortex methods (Bhosale et al 2021a;Gazzola, Van Rees & Koumoutsakos 2012) (see also the caption of figure 2). For a rigid cylinder (Cau = 0) oscillating at M ≈ 8, numerical time-averaged Lagrangian streamlines (i.e.…”

“…1973), and direct numerical simulations performed using remeshed vortex methods (Bhosale et al. 2021 a ; Gazzola, Van Rees & Koumoutsakos 2012) (see also the caption of figure 2). For a rigid cylinder () oscillating at , numerical time-averaged Lagrangian streamlines (i.e.…”

“…Simulations are performed using a remeshed vortex methodology (Gazzola et al. 2011; Bhosale, Parthasarathy & Gazzola 2021 a ) that accurately solves the vorticity–velocity formulation of the Navier–Stokes equations. The flow domain is discretized as particles for vorticity advection.…”

Elastic solid dynamics in a coupled oscillatory Couette flow system

“…Before studying the system behaviour in a range of conditions (§ 4.4), we validate our solutions against direct numerical simulations (DNS) employing a recent 2-D remeshed vortex method framework (Bhosale et al. 2021). In figure 3( a ), we consider a system characterized by , , , , , .…”

“…We now move on from analyses of limit cases and consider the more general scenario of visco-elastic linear Kelvin-Voigt solids. Before studying the system behaviour in a range of conditions ( § 4.4), we validate our solutions against direct numerical simulations (DNS) employing a recent 2-D remeshed vortex method framework (Bhosale et al 2021). In figure 3(a), we consider a system characterized by Re = 2, Er = 1, ν = 0.1, δ f = 0.4, δ s = 0.126, λ = 0.225.…”