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Title: Particle methods for simulation of subsurface multiphase fluid flow and biogeological processes

A number of particle models that are suitable for simulating multiphase fluid flow and biogeological processes have been developed during the last few decades. Here we discuss three of them: a microscopic model - molecular dynamics; a mesoscopic model - dissipative particle dynamics; and a macroscopic model - smoothed particle hydrodynamics. Particle methods are robust and versatile, and it is relatively easy to add additional physical, chemical and biological processes into particle codes. However, the computational efficiency of particle methods is low relative to continuum methods. Multiscale particle methods and hybrid (particle–particle and particle–continuum) methods are needed to improve computational efficiency and make effective use of emerging computational capabilities. These new methods are under development.
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Publication Date:
OSTI Identifier:
Report Number(s):
24097; 25602; KP1504010; TRN: US0805916
DOE Contract Number:
Resource Type:
Resource Relation:
Conference: Journal of Physics: Conference Series, 78:paper no. 012047 (11 pages)
Institute of Physics Publishing, Bristol, United Kingdom.
Research Org:
Pacific Northwest National Laboratory (PNNL), Richland, WA (US), Environmental Molecular Sciences Laboratory (EMSL)
Sponsoring Org:
Country of Publication:
United States
72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS; EFFICIENCY; FLUID FLOW; HYDRODYNAMICS; PARTICLE MODELS; SIMULATION; MOLECULAR DYNAMICS METHOD particle methods; modeling; subsurface; hydrology; biogeochemistry; fluid mechanics; Environmental Molecular Sciences Laboratory