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A hierarchical mesh refinement technique for global 3-D spherical mantle convection modelling

DR Davies, JH Davies, PC Bollada, O Hassan, K Morgan, Perumal Nithiarasu Orcid Logo, Oubay Hassan Orcid Logo

GEOSCIENTIFIC MODEL DEVELOPMENT, Issue: 6, Pages: 1095 - 1107

Swansea University Authors: Perumal Nithiarasu Orcid Logo, Oubay Hassan Orcid Logo

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DOI (Published version): 10.5194/gmd-6-1095-2013

Abstract

A method for incorporating multi-resolution capabilities within pre-existing global 3-D spherical mantle convection codes is presented. The method, which we term "geometric multigrid refinement", is based upon the application of a multigrid solver on non-uniform, structured grids and allow...

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Published in: GEOSCIENTIFIC MODEL DEVELOPMENT
Published: 2013
URI: https://cronfa.swan.ac.uk/Record/cronfa20243
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spelling 2015-03-02T13:33:44.4245051 v2 20243 2015-03-02 A hierarchical mesh refinement technique for global 3-D spherical mantle convection modelling 3b28bf59358fc2b9bd9a46897dbfc92d 0000-0002-4901-2980 Perumal Nithiarasu Perumal Nithiarasu true false 07479d73eba3773d8904cbfbacc57c5b 0000-0001-7472-3218 Oubay Hassan Oubay Hassan true false 2015-03-02 CIVL A method for incorporating multi-resolution capabilities within pre-existing global 3-D spherical mantle convection codes is presented. The method, which we term "geometric multigrid refinement", is based upon the application of a multigrid solver on non-uniform, structured grids and allows for the incorporation of local high-resolution grids within global models. Validation tests demonstrate that the method is accurate and robust, with highly efficient solutions to large-scale non-uniform problems obtained. Significantly, the scheme is conceptually simple and straightforward to implement, negating the need to reformulate and restructure large sections of code. Consequently, although more advanced techniques are under development at the frontiers of mesh refinement and solver technology research, the technique presented is capable of extending the lifetime and applicability of pre-existing global mantle convection codes. Journal Article GEOSCIENTIFIC MODEL DEVELOPMENT 6 1095 1107 31 12 2013 2013-12-31 10.5194/gmd-6-1095-2013 COLLEGE NANME Civil Engineering COLLEGE CODE CIVL Swansea University 2015-03-02T13:33:44.4245051 2015-03-02T13:32:11.6357051 Faculty of Science and Engineering School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering DR Davies 1 JH Davies 2 PC Bollada 3 O Hassan 4 K Morgan 5 Perumal Nithiarasu 0000-0002-4901-2980 6 Oubay Hassan 0000-0001-7472-3218 7
title A hierarchical mesh refinement technique for global 3-D spherical mantle convection modelling
spellingShingle A hierarchical mesh refinement technique for global 3-D spherical mantle convection modelling
Perumal Nithiarasu
Oubay Hassan
title_short A hierarchical mesh refinement technique for global 3-D spherical mantle convection modelling
title_full A hierarchical mesh refinement technique for global 3-D spherical mantle convection modelling
title_fullStr A hierarchical mesh refinement technique for global 3-D spherical mantle convection modelling
title_full_unstemmed A hierarchical mesh refinement technique for global 3-D spherical mantle convection modelling
title_sort A hierarchical mesh refinement technique for global 3-D spherical mantle convection modelling
author_id_str_mv 3b28bf59358fc2b9bd9a46897dbfc92d
07479d73eba3773d8904cbfbacc57c5b
author_id_fullname_str_mv 3b28bf59358fc2b9bd9a46897dbfc92d_***_Perumal Nithiarasu
07479d73eba3773d8904cbfbacc57c5b_***_Oubay Hassan
author Perumal Nithiarasu
Oubay Hassan
author2 DR Davies
JH Davies
PC Bollada
O Hassan
K Morgan
Perumal Nithiarasu
Oubay Hassan
format Journal article
container_title GEOSCIENTIFIC MODEL DEVELOPMENT
container_issue 6
container_start_page 1095
publishDate 2013
institution Swansea University
doi_str_mv 10.5194/gmd-6-1095-2013
college_str Faculty of Science and Engineering
hierarchytype
hierarchy_top_id facultyofscienceandengineering
hierarchy_top_title Faculty of Science and Engineering
hierarchy_parent_id facultyofscienceandengineering
hierarchy_parent_title Faculty of Science and Engineering
department_str School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering{{{_:::_}}}Faculty of Science and Engineering{{{_:::_}}}School of Aerospace, Civil, Electrical, General and Mechanical Engineering - Civil Engineering
document_store_str 0
active_str 0
description A method for incorporating multi-resolution capabilities within pre-existing global 3-D spherical mantle convection codes is presented. The method, which we term "geometric multigrid refinement", is based upon the application of a multigrid solver on non-uniform, structured grids and allows for the incorporation of local high-resolution grids within global models. Validation tests demonstrate that the method is accurate and robust, with highly efficient solutions to large-scale non-uniform problems obtained. Significantly, the scheme is conceptually simple and straightforward to implement, negating the need to reformulate and restructure large sections of code. Consequently, although more advanced techniques are under development at the frontiers of mesh refinement and solver technology research, the technique presented is capable of extending the lifetime and applicability of pre-existing global mantle convection codes.
published_date 2013-12-31T03:23:51Z
_version_ 1763750792891727872
score 11.017797

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