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Descripción
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| The long-term thermal response of geothermal heat exchangers plays a fundamental role in their correct sizing. A possible approach is to approximate that long-term behaviour by a time-periodic one, in which an infinite series of harmonic terms is superposed to a steady-state component. While for the harmonic terms analytical expressions are known, the steady-state component must be obtained numerically. In the present work the use of an iterative, and matrix-free, solver combined with a preconditioner derived from the very physics of the problem is presented, which compared to a sparse direct solver leads to an order 10^2 speedup in the computation of the steady-state thermal response of geothermal heat exchangers. | |
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Internacional
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Si |
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Nombre congreso
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14th International Conference of Computational Methods in Sciences and Engineering 2018 (ICCMSE 2018) |
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Tipo de participación
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960 |
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Lugar del congreso
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Thessaloniki, Grecia |
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Revisores
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Si |
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ISBN o ISSN
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978-0-7354-1766-3 |
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DOI
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10.1063/1.5079205 |
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Fecha inicio congreso
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14/03/2018 |
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Fecha fin congreso
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18/04/2018 |
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Desde la página
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150002 |
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Hasta la página
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150002 |
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Título de las actas
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INTERNATIONAL CONFERENCE OF COMPUTATIONAL METHODS IN SCIENCES AND ENGINEERING 2018 (ICCMSE 2018) |