Ships and offshore structures are subjected to impact loads, such as slamming sloshing. High pressures can cause permanent hull deformation by a single event. In addition, significant fatigue damage be accumulated via repeated pressures. this study, the plastic behavior of flat plates under is numerically investigated using coupled Eulerian–Lagrangian method. The dynamic pressure weight drop he...

Abstract The pervasiveness of microplastics in global oceans is raising concern about their impacts on organisms. While quantifying toxicity still an open issue, sampling evidence has shown that rarely are marine found clean; rather, they often contaminated by other types chemical pollutants, some known to be harmful biota and humans. To provide a first tool for assessing the role as vectors pl...

A hardware-based approach for visualizing unsteady flow fields by means of Lagrangian-Eulerian advection is presented. Both noise-based and dyebased texture advection is supported. The implementation allows the advection of each texture to be performed completely on the graphics hardware in a single-pass rendering. We discuss experiences with the interactive visualization of unsteady flow field...

The present lecture notes address three columns on which the Lagrangian perturbation approach to cosmological dynamics is based: 1. the formulation of a Lagrangian theory of self–gravitating flows in which the dynamics is described in terms of a single field variable; 2. the procedure, how to obtain the dynamics of Eulerian fields from the Lagrangian picture, and 3. a precise definition of a Ne...

Variational principles for magnetohydrodynamics were introduced by previous authors both in Lagrangian and Eulerian form. In this paper we introduce simpler Eulerian variational principles from which all the relevant equations of barotropic magnetohydrodynamics can be derived. The variational principle is given in terms of six independent functions for non-stationary barotropic flows and three ...

A new geometrically conservative arbitrary Lagrangian-Eulerian (ALE) formulation is presented for the moving boundary problems in the swirl-free cylindrical coordinates. The governing equations are multiplied with the radial distance and integrated over arbitrary moving Lagrangian-Eulerian quadrilateral elements. Therefore, the continuity and the geometric conservation equations take very simpl...