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Title:

A Next-Generation Discontinuous Galerkin Fluid Dynamics Solver with Application to High-Resolution Lung Airflow Simulations

Document type:
Zeitschriftenaufsatz
Author(s):
Martin Kronbichler, Niklas Fehn, Peter Munch, Maximilian Bergbauer, Karl-Robert Wichmann, Carolin Geitner, Momme Allalen, Martin Schulz
Abstract:
We present a novel, highly scalable and optimized solver for turbulent flows based on high-order discontinuous Galerkin discretizations of the incompressible Navier Stokes equations aimed to minimize time-To-solution. The solver uses explicit-implicit time integration with variable step size. The central algorithmic component is the matrix-free evaluation of discretized finite element operators. The node-level performance is optimized by sum-factorization kernels for tensor-product elements with...     »
Keywords:
High-order discontinuous Galerkin; Matrix-free algorithms; Multigrid; Time-To-solution
Dewey Decimal Classification:
620 Ingenieurwissenschaften
Journal title:
IEEE Computer Society
Year:
2021
Covered by:
Scopus
Reviewed:
ja
Language:
en
WWW:
https://www.scopus.com/record/display.uri?eid=2-s2.0-85119953331&origin=resultslist&sort=plf-f&src=s&st1=A+Next-Generation+Discontinuous+Galerkin+Fluid+Dynamics+Solver+with+Application+to+High-Resolution+Lung+Airflow+Simulations&sid=1a7a5bfd7f97346cbcd0c61b21f5cdd5&sot=b&sdt=b&sl=138&s=TITLE-ABS-KEY(A+Next-Generation+Discontinuous+Galerkin+Fluid+Dynamics+Solver+with+Application+to+High-Resolution+Lung+Airflow+Simulations)&relpos=1&citeCnt=0&featureToggles=FEATURE_NEW_DOC_DETAILS_EXPORT:1
Date of publication:
14.11.2021
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