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Boundary Conditions Generated by Dynamic Particles in SPH Methods

A. J. C. Crespo1, M. Gómez-Gesteira1, R. A. Dalrymple2

Grupo de Fk. sica de la Atmósfera y del Océano, Facultad de Ciencias, Universidad de Vigo, Spain.
Department of Civil Engineering, Johns Hopkins University, Baltimore, USA.

Computers, Materials & Continua 2007, 5(3), 173-184. https://doi.org/10.3970/cmc.2007.005.173

Abstract

Smoothed Particle Hydrodynamics is a purely Lagrangian method that can be applied to a wide variety of fields. The foundation and properties of the so called dynamic boundary particles (DBPs) are described in this paper. These boundary particles share the same equations of continuity and state as the moving particles placed inside the domain, although their positions and velocities remain unaltered in time or are externally prescribed. Theoretical and numerical calculations were carried out to study the collision between a moving particle and a boundary particle. The boundaries were observed to behave in an elastic manner in absence of viscosity. They allow the fluid particles to approach till a critical distance depending on the energy of the incident particle. In addition, a dam break confined in a box was used to check the validity of the approach. The good agreement between experiments and numerical results shows the reliability of DBPs.

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APA Style
Crespo, A.J.C., Gómez-Gesteira, M., Dalrymple, R.A. (2007). Boundary conditions generated by dynamic particles in SPH methods. Computers, Materials & Continua, 5(3), 173-184. https://doi.org/10.3970/cmc.2007.005.173
Vancouver Style
Crespo AJC, Gómez-Gesteira M, Dalrymple RA. Boundary conditions generated by dynamic particles in SPH methods. Comput Mater Contin. 2007;5(3):173-184 https://doi.org/10.3970/cmc.2007.005.173
IEEE Style
A.J.C. Crespo, M. Gómez-Gesteira, and R.A. Dalrymple "Boundary Conditions Generated by Dynamic Particles in SPH Methods," Comput. Mater. Contin., vol. 5, no. 3, pp. 173-184. 2007. https://doi.org/10.3970/cmc.2007.005.173



cc Copyright © 2007 The Author(s). Published by Tech Science Press.
This work is licensed under a Creative Commons Attribution 4.0 International License , which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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