World Library  


Add to Book Shelf
Flag as Inappropriate
Email this Book

Elefant: a User-friendly Multipurpose Geodynamics Code : Volume 6, Issue 2 (29/07/2014)

By Thieulot, C.

Click here to view

Book Id: WPLBN0004021956
Format Type: PDF Article :
File Size: Pages 148
Reproduction Date: 2015

Title: Elefant: a User-friendly Multipurpose Geodynamics Code : Volume 6, Issue 2 (29/07/2014)  
Author: Thieulot, C.
Volume: Vol. 6, Issue 2
Language: English
Subject: Science, Solid, Earth
Collections: Periodicals: Journal and Magazine Collection, Copernicus GmbH
Historic
Publication Date:
2014
Publisher: Copernicus Gmbh, Göttingen, Germany
Member Page: Copernicus Publications

Citation

APA MLA Chicago

Thieulot, C. (2014). Elefant: a User-friendly Multipurpose Geodynamics Code : Volume 6, Issue 2 (29/07/2014). Retrieved from http://worldlibrary.net/


Description
Description: Department of Earth Sciences, University of Utrecht, Budapestlaan 4, 3584 CD, Utrecht, the Netherlands. A new finite element code for the solution of the Stokes and heat transport equations is presented. It has purposely been designed to address geological flow problems in two and three dimensions at crustal and lithospheric scales. The code relies on the Marker-in-Cell technique and Lagrangian markers are used to track materials in the simulation domain which allows recording of the integrated history of deformation; their (number) density is variable and dynamically adapted. A variety of rheologies has been implemented including nonlinear thermally activated dislocation and diffusion creep and brittle (or plastic) frictional models. The code is built on the Arbitrary Lagrangian Eulerian kinematic description: the computational grid deforms vertically and allows for a true free surface while the computational domain remains of constant width in the horizontal direction. The solution to the large system of algebraic equations resulting from the finite element discretisation and linearisation of the set of coupled partial differential equations to be solved is obtained by means of the efficient parallel direct solver MUMPS whose performance is thoroughly tested, or by means of the WISMP and AGMG iterative solvers. The code accuracy is assessed by means of many geodynamically relevant benchmark experiments which highlight specific features or algorithms, e.g., the implementation of the free surface stabilisation algorithm, the (visco-)plastic rheology implementation, the temperature advection, the capacity of the code to handle large viscosity contrasts. A two-dimensional application to salt tectonics presented as case study illustrates the potential of the code to model large scale high resolution thermo-mechanically coupled free surface flows.

Summary
ELEFANT: a user-friendly multipurpose geodynamics code

Excerpt
Allken, V., Huismans, R., and Thieulot, C.: Three dimensional numerical modelling of upper crustal extensional systems, J. Geophys. Res., 116, B10409, doi:10.1029/2011JB008319, 2011.; Allken, V., Huismans, R., and Thieulot, C.: Factors controlling the mode of rift interaction in brittle-ductile coupled systems: a 3D numerical study, Geochem. Geophy. Geosy., 13, Q05010, doi:10.1029/2012GC004077, 2012.; Allken, V., Huismans, R., Fossen, H., and Thieulot, C.: 3D numerical modelling of graben interaction and linkage: a case study of the Canyonlands grabens, Utah, Basin Research, 25, 1–14, 2013.; Amestoy, P., Duff, I., J.Koster, and L'Excellent, J.-Y.: A fully asynchronous multifrontal solver using distributed dynamic scheduling, SIAM J. Matrix Anal. Appl., 23, 15–41, 2001.; Amestoy, P., Guermouche, A., L'Excellent, J.-Y., and Pralet, S.: Hybrid scheduling for the parallel solution of linear systems, Parallel Comput., 32, 136–156, 2006.; Anderson, J.: Computational Fluid Dynamics, McGraw-Hill, 1995.; Babeyko, A., Sobolev, S., Trumbull, R., Oncken, O., and Lavier, L.: Numerical models of crustal scale convection and partial melting beneath the Altiplano-Puna plateau, Earth Planet. Sci. Lett., 199, 373–388, 2002.; Bachelor, G.: An Introduction to Fluid Dynamics, Cambridge University Press, Cambridge, 1967.; Ballmer, M., van Hunen, J., Ito, G., Tackley, P., and Bianco, T.: Non-hotspot volcano chains originating from small-scale sublithospheric convection, Geophys. Res. Lett., 34, doi:10.1029/2007GL031636, 2007.; Braun, J.: Three-dimensional numerical simulations of crustal-scale wrenching using a non-linear failure criterion, J. Struct. Geol., 16, 1173–1186, 1994.; Ballmer, M., Ito, G., van Hunen, J., and Tackley, P.: Small-scale sublithospheric convection reconcilies geochemistry and geochronology of Superplume volcanism in th western and south pacific, Earth Planet. Sci. Lett., 290, 224–232, 2010.; Bathe, K.-J.: Finite Element Procedures in Engineering Analysis, Prentice-Hall, 1982.; Battaglia, L., Storti, M., and D'Elia, J.: An interface capturing finite element approach for free surface flows using unstructured grids, Mecanica Computational, XXVII, 33–48, 2008.; Bengtson, A. and van Keken, P.: Three-dimensional thermal structure of subduction zones: effects of obliquity and curvature, Solid Earth, 3, 365–373, 2012.; Benzi, M., Golub, G., and Liesen, J.: Numerical solution of saddle point problems, Acta Numerica, 14, 1–137, 2005.; Betts, P., Mason, W., and Moresi, L.: The influence of a mantle plume head on the dynamics of a retreating subduction zone, Geology, 40, 739–742, 2012.; Blankenbach, B., Busse, F., Christensen, U., Cserepes, L., Gunkel, D., Hansen, U., Harder, H., Jarvis, G., Koch, M., Marquart, G., Moore, D., Olson, P., Schmeling, H., and Schnaubelt, T.: A benchmark comparison for mantle convection codes, Geophys. J. Int., 98, 23–38, 1989.; Bodoia, J. and Osterle, J.: Finite difference analysis of plane Poiseuille and Couette flow developments, Appl. Sci. Res., 10, 265–276, 1961.; Bourgouin, L., Mühlhaus, H.-B., Hale, A., and Arsac, A.: Towards realistic simulations of lava dome growth using the level set method, Acta Geotecnica, 1, 225–236, 2006.; Bramley, R. and Wang, X.: SPLIB: a library of iterative methods for sparse linear systems, Tech. rep., Indiana University, 1995.; Braun, J.: Three-dimensional numerical modelling of compressional orogens: thrust geometry and oblique convergence, Geology, 21, 153–156, 1993.; Braun, J.: Pecube: a new finite-element code to solve the 3D heat transport equation including the effects of a time-varying, finite amplitude surface topography, Comput. Geosci., 29, 787–794, 2003.; Braun, J. and Beaumont, C.: Three-dimensional numerical experiments of strain partitioning at oblique plate boundaries: im

 

Click To View

Additional Books


  • Domains of Archean Mantle Lithosphere De... (by )
  • Regional Wave Propagation Using the Disc... (by )
  • The Fate of Fluids Released from Subduct... (by )
  • Active-layer Thermal Monitoring on the F... (by )
  • A Re-evaluation of the Italian Historica... (by )
  • Magma Storage and Plumbing of Adakite-ty... (by )
  • A Lithosphere-scale Structural Model of ... (by )
  • Elemental Quantification, Chemistry, and... (by )
  • Velocity Structure and the Role of Fluid... (by )
  • Petrophysical Constraints on the Seismic... (by )
  • Kinetics of Potassium Release in Sweet P... (by )
  • Evidence of Magma Activation Beneath the... (by )
Scroll Left
Scroll Right

 



Copyright © World Library Foundation. All rights reserved. eBooks from World Library are sponsored by the World Library Foundation,
a 501c(4) Member's Support Non-Profit Organization, and is NOT affiliated with any governmental agency or department.