A fully Eulerian solver for the simulation of multiphase flows with solid bodies: Application to surface gravity waves
نویسندگان
چکیده
In this paper a fully Eulerian solver for the study of multiphase flows simulating propagation surface gravity waves over submerged bodies is presented. We solve incompressible Navier-Stokes equations coupled with volume fluid technique modeling liquid phases interface, an immersed body method solid and iterative strong-coupling procedure fluid-structure interaction. The flow incompressibility enforced via solution Poisson equation which, owing to density jump across interfaces phases, has resort splitting Dodd & Ferrante [12]. validated through comparisons against classical test cases interaction like migration particles in pressure-driven channel, flows, water exit cylinder good agreement found all tests. Furthermore, we show application case wave propagating reversed pendulum verify that can reproduce energy exchange between pendulum. Finally three-dimensional spilling breaking induced by sphere considered.
منابع مشابه
A preconditioned solver for sharp resolution of multiphase flows at all Mach numbers
A preconditioned five-equation two-phase model coupled with an interface sharpening technique is introduced for simulation of a wide range of multiphase flows with both high and low Mach regimes. Harten-Lax-van Leer-Contact (HLLC) Riemann solver is implemented for solving the discretized equations while tangent of hyperbola for interface capturing (THINC) interface sharpening method is applied ...
متن کاملLagrangian–Eulerian methods for multiphase flows
This review article aims to provide a comprehensive and understandable account of the theoretical foundation, modeling issues, and numerical implementation of the Lagrangian–Eulerian (LE) approach for multiphase flows. The LE approach is based on a statistical description of the dispersed phase in terms of a stochastic point process that is coupled with an Eulerian statistical representation of...
متن کاملA Solver for Massively Parallel Direct Numerical Simulation of Three-Dimensional Multiphase Flows
We present a new solver for massively parallel simulations of fully three-dimensional multiphase flows. The solver runs on a variety of computer architectures from laptops to supercomputers and on 65536 threads or more (limited only by the availability to us of more threads). The code is wholly written by the authors in Fortran 2003 and uses a domain decomposition strategy for parallelization w...
متن کاملa new type-ii fuzzy logic based controller for non-linear dynamical systems with application to 3-psp parallel robot
abstract type-ii fuzzy logic has shown its superiority over traditional fuzzy logic when dealing with uncertainty. type-ii fuzzy logic controllers are however newer and more promising approaches that have been recently applied to various fields due to their significant contribution especially when the noise (as an important instance of uncertainty) emerges. during the design of type- i fuz...
15 صفحه اولSimulation of Gravity Wave Propagation in Free Surface Flows by an Incompressible SPH Algorithm
This paper presents an incompressible smoothed particle hydrodynamics (SPH) model to simulate wave propagation in a free surface flow. The Navier-Stokes equations are solved in a Lagrangian framework using a three-step fractional method. In the first step, a temporary velocity field is provided according to the relevant body forces. This velocity field is renewed in the second step to include t...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Journal of Computational Physics
سال: 2021
ISSN: ['1090-2716', '0021-9991']
DOI: https://doi.org/10.1016/j.jcp.2021.110355