Reflective Boundary Conditions In Sph Fluid Dynamics Simulation
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Reflective Boundary Conditions in SPH Fluid Dynamics Simulation
Author: Carlos Alberto Dutra Fraga Filho
language: en
Publisher: Springer Nature
Release Date: 2024-11-15
This book presents results from applying Reflective Boundary Conditions (RBC) in particle simulations coupled with the Smoothed Particle Hydrodynamics (SPH) Method in two- and three-dimensional domains. The contribution of this work lies in the presentation of the state of the art regarding the application of physical and realistic boundary conditions in the continuum domain, which is an advance in the artificial computational boundary treatment carried out in most SPH simulations. By reading this work, researchers from different fields dealing with Computational Fluid Dynamics (CFD) will be aware of the most recent results of applying the SPH method coupled with RBC, confirming its scientific validity and encouraging its implementation in other problems. This multidisciplinary work is aimed at undergraduate and postgraduate students, researchers, software developers, and other engineering, physics, chemistry, mathematics, and related sciences professionals.
Computational Algorithms for Reflective Boundary Conditions in SPH Fluid Dynamics Simulation
Author: Carlos Alberto Dutra Fraga Filho
language: en
Publisher: Springer Nature
Release Date: 2025-07-28
This book presents computational codes for the reflective boundary treatment technique used in the case studies presented in the book Reflective Boundary Conditions in SPH Fluid Dynamics Simulation by the same author. It provides basic computational programs that can be adapted by researchers and students for the simulation of other cases. This work is intended for graduate and undergraduate students, researchers in different fields, software developers, and professionals in fields of engineering, physics, mathematics, and related sciences.
Numerical Simulation of the Gravity-Inertial Spreading of Oil Using Smoothed Particle Hydrodynamics
Author: Carlos Alberto Dutra Fraga Filho
language: en
Publisher: Cambridge Scholars Publishing
Release Date: 2024-09-05
Oil spills at sea are a severe environmental concern. They can occur during the various stages of well-drilling, repair operations or transportation. The spreading of oil occurs due to the pollutant's tendency to flow over itself. Knowledge of its physical properties during the phenomenon, such as velocities and spatial positions, allows the timely adoption of environmental protection measures. This book presents, in a simple and objective way, the development and implementation of purely Lagrangian numerical modelling using the Smoothed Particle Hydrodynamics (SPH) method for the study of the spreading of oil in its first stage (gravity-inertial regime) on a calm sea. The computational code's implementation and validation were carried out through the simulation of classical problems in the scientific literature, i.e., heat diffusion in a homogeneous flat plate, a still volume of water inside an immobile reservoir and a dam failure. From the coupling of the software with a collision detection and response algorithm, numerical results in concordance with the curve adjusted by James Fay (a pioneering scientist in the study of oil spills) for the prediction of oil slick diameters at the end of the gravity-inertial regime were achieved.