Discrete–element modelling and smoothed particle hydrodynamics: potential in the environmental sciences

Particle-based simulation methods, such as the discrete-element method and smoothed particle hydrodynamics, have specific advantages in modelling complex three-dimensional (3D) environmental fluid and particulate flows. The theory of both these methods and their relative advantages compared with tra...

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Bibliographic Details
Published in:	Philosophical transactions of the Royal Society of London. Series A: Mathematical, physical, and engineering sciences physical, and engineering sciences, 2004-09, Vol.362 (1822), p.2003-2030
Main Authors:	Cleary, Paul W., Prakash, Mahesh
Format:	Article
Language:	eng
Subjects:	Algorithms Coasts Computer Simulation Dam-Breaks Ecology - methods Environment Environmental Monitoring Environmental sciences Geography Geophysical Simulations Landslides Lava Modeling Models, Statistical Models, Theoretical Particle collisions Particle Methods Rivers Sea water Time Factors Tsunamis Viscosity Volcanic Lava Flows Water Movements Waves
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Summary:	Particle-based simulation methods, such as the discrete-element method and smoothed particle hydrodynamics, have specific advantages in modelling complex three-dimensional (3D) environmental fluid and particulate flows. The theory of both these methods and their relative advantages compared with traditional methods will be discussed. Examples of 3D flows on realistic topography illustrate the environmental application of these methods. These include the flooding of a river valley as a result of a dam collapse, coastal inundation by a tsunami, volcanic lava flow and landslides. Issues related to validation and quality data availability are also discussed.
ISSN:	1364-503X 1471-2962