Title:
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On the simulation of flows with violent free surface motion
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Author:
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Löhner, Rainald; Yang, C.; Oñate Ibáñez de Navarra, Eugenio
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Other authors:
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Universitat Politècnica de Catalunya. Departament d'Enginyeria Civil i Ambiental; Universitat Politècnica de Catalunya. GMNE - Grup de Mètodes Numèrics en Enginyeria |
Abstract:
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A volume of fluid (VOF) technique has been developed and coupled with an incompressible Euler/Navier–Stokes solver operating on adaptive, unstructured grids to simulate the interactions of extreme waves and three-dimensional structures. The present implementation follows the classic VOF implementation for the liquid–gas system, considering only the liquid phase. Extrapolation algorithms to obtain velocities and pressure in the gas region near the free surface have been implemented. The VOF technique is validated against the classic dam-break problem, as well as series of 2D sloshing experiments and results from smoothed particle hydrodynamics (SPH) calculations. These and a series of other examples demonstrate that the present CFD method is capable of simulating violent free surface flows with strong nonlinear behavior. |
Subject(s):
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-Àrees temàtiques de la UPC::Matemàtiques i estadística::Anàlisi numèrica::Mètodes numèrics -Àrees temàtiques de la UPC::Matemàtiques i estadística::Matemàtica aplicada a les ciències -Strength of materials -Hydrodynamics -Research Report CIMNE -Resistència de materials -Hidrodinàmica -Classificació AMS::74 Mechanics of deformable solids::74S Numerical methods -Classificació AMS::76 Fluid mechanics::76E Hydrodynamic stability |
Rights:
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Document type:
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Article - Draft Report |
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