When a liquid slams into solid, the intermediate gas is squeezed out at speed that diverges when approaching moment of impact. Although there mounting experimental evidence instabilities form on interface during such an event, understanding nature these limited. This study therefore addresses stability liquid-gas with surface tension, subject to diverging flow in phase, where and phase are both...

PETER S. STEWART, MATTHIAS HEIL, SARAH L. WATERS AND OLIVER E. JENSEN† Department of Engineering Sciences and Applied Mathematics, Northwestern University, 2145 Sheridan Road, Evanston, IL 60208, USA School of Mathematics, University of Manchester, Oxford Road, Manchester M13 9PL, UK Oxford Centre for Industrial and Applied Mathematics, University of Oxford, 24-29 St Giles’, Oxford OX1 3LB, UK ...

The paper presents a novel compressible-incompressible multi-phase projection-based particle method for prediction of water slamming pressures. The considered particle method is an extended version of an enhanced multi-phase MPS method. The proposed method solves an integrated form of Poisson Pressure Equations (PPE) for the liquid phase and the gas phase. To further enhance the accuracy, a mod...

This paper is intended to study impact forces of breaking waves on a rigid wall based on a nonlinear potential-flow theory. This is a model problem for some technologically important design issues such as the impact of breaking waves on ships, coastal and offshore structures. We are interested in the short-time successive triggering of nonlinear effects using a small-time expansion. The analyti...

A model simulating a coupledjuid-structure impact buckling phenomenon is constructed in this paper. Based on the experiment’,’ the model is designed as an impact system in which a small imperfection elastoplastic column is attached by its upper end to a large mass and by its lower end to aflatplate; it then perpendicularly impacts a viscous water free surface from a certain drop height or in a ...

The climate-security century is here. Both the United Nations Intergovernmental Panel on Climate Change (“IPCC”) and U.S. Fourth National Assessment (“NCA”) recently sounded alarm climate change’s “super-wicked” destabilizing security impacts. Scientists professionals alike reaffirm what we are witnessing with our own eyes: earth warming at a rapid rate; change affects international peace in co...