Physics of Fluids - Publications

A fully Eulerian solver for the simulation of multiphase flows with solid bodies: Application to surface gravity waves

arΧiv
Journal of Computational Physics 438, 110355 (2021)

Authors

	Francesco De Vita
	Filippo De Lillo
	Roberto Verzicco
	Miguel Onorato

BibTeΧ

@article{DEVITA2021110355,
title = {A fully Eulerian solver for the simulation of multiphase flows with solid bodies: Application to surface gravity waves},
journal = {Journal of Computational Physics},
volume = {438},
pages = {110355},
year = {2021},
issn = {0021-9991},
doi = {https://doi.org/10.1016/j.jcp.2021.110355},
url = {https://www.sciencedirect.com/science/article/pii/S0021999121002503},
author = {Francesco {De Vita} and Filippo {De Lillo} and Roberto Verzicco and Miguel Onorato},
keywords = {Multiphase flow, Surface gravity waves, Fluid-structure interaction},
abstract = {In this paper a fully Eulerian solver for the study of multiphase flows for simulating the propagation of surface gravity waves over submerged bodies is presented. We solve the incompressible Navier‚ÄìStokes equations coupled with the volume of fluid technique for the modeling of the liquid phases with the interface, an immersed body method for the solid objects and an iterative strong‚Äìcoupling procedure for the fluid‚Äìstructure interaction. The flow incompressibility is enforced via the solution of a Poisson equation which, owing to the density jump across the interfaces of the liquid phases, has to resort to the splitting procedure of Dodd and Ferrante [1], [1]. The solver is validated through comparisons against classical test cases for fluid‚Äìstructure interaction like migration of particles in a pressure‚Äìdriven channel, multiphase flows, ‚Äòwater exit‚Äô of a cylinder and a good agreement is found for all tests. Furthermore, we show the application of the solver to the case of a surface gravity wave propagating over a submerged reversed pendulum and verify that the solver can reproduce the energy exchange between the wave and the pendulum. Finally the three‚Äìdimensional spilling breaking of a wave induced by a submerged sphere is considered.}
}