Mesh infrastructure for coupled multiprocess geophysical simulations

Garimella, Rao V.; Perkins, William A.; Buksas, Mike W.; Berndt, Markus; Lipnikov, Konstantin; Coon, Ethan; Moulton, John D.; Painter, Scott L.

doi:10.1016/j.proeng.2014.10.371

Mesh infrastructure for coupled multiprocess geophysical simulations

Journal Article · Tue Dec 31 23:00:00 EST 2013 · Procedia Engineering

DOI:https://doi.org/10.1016/j.proeng.2014.10.371· OSTI ID:1210029

Garimella, Rao V. ^[1]; Perkins, William A. ^[2]; Buksas, Mike W. ^[3]; Berndt, Markus ^[1]; Lipnikov, Konstantin ^[1]; Coon, Ethan ^[1]; Moulton, John D. ^[1]; Painter, Scott L. ^[1]

Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Pacific Northwest National Lab. (PNNL), Richland, WA (United States)
Stellar Science Ltd. Co., Albuquerque, NM (United States)

We have developed a sophisticated mesh infrastructure capability to support large scale multiphysics simulations such as subsurface flow and reactive contaminant transport at storage sites as well as the analysis of the effects of a warming climate on the terrestrial arctic. These simulations involve a wide range of coupled processes including overland flow, subsurface flow, freezing and thawing of ice rich soil, accumulation, redistribution and melting of snow, biogeochemical processes involving plant matter and finally, microtopography evolution due to melting and degradation of ice wedges below the surface. In addition to supporting the usual topological and geometric queries about the mesh, the mesh infrastructure adds capabilities such as identifying columnar structures in the mesh, enabling deforming of the mesh subject to constraints and enabling the simultaneous use of meshes of different dimensionality for subsurface and surface processes. The generic mesh interface is capable of using three different open source mesh frameworks (MSTK, MOAB and STKmesh) under the hood allowing the developers to directly compare them and choose one that is best suited for the application's needs. We demonstrate the results of some simulations using these capabilities as well as present a comparison of the performance of the different mesh frameworks.

Research Organization:: Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC52-06NA25396

OSTI ID:: 1210029

Journal Information:: Procedia Engineering, Journal Name: Procedia Engineering Journal Issue: C Vol. 82; ISSN 1877-7058

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Cited By (1)

Integrated surface/subsurface permafrost thermal hydrology: Model formulation and proof-of-concept simulations: INTEGRATED PERMAFROST THERMAL HYDROLOGY Painter, Scott L.; Coon, Ethan T.; Atchley, Adam L. Water Resources Research, Vol. 52, Issue 8 https://doi.org/10.1002/2015wr018427	journal	August 2016

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58 GEOSCIENCES
coupled multiphysics simulations
mesh infrastructure
permafrost
terrestrial arctic

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References (15)

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