Výsledky vyhledávání - "Huismann, Immo"

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Linearizing the hybridizable discontinuous Galerkin method: A linearly scaling operator

Autor: Huismann, Immo, Stiller, Jörg, Fröhlich, Jochen

This paper proposes a matrix-free residual evaluation technique for the hybridizable discontinuous Galerkin method requiring a number of operations scaling only linearly with the number of degrees of freedom. The method results from application of te

Externí odkaz: http://arxiv.org/abs/2007.11891

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Dissertation/ Thesis

Computational fluid dynamics on wildly heterogeneous systems

Autor: Huismann, Immo

In the last decade, high-order methods have gained increased attention. These combine the convergence properties of spectral methods with the geometrical flexibility of low-order methods. However, the time step is restrictive, necessitating the impli

Externí odkaz: https://tud.qucosa.de/id/qucosa%3A74002
https://tud.qucosa.de/api/qucosa%3A74002/attachment/ATT-0/

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Scaling to the stars -- a linearly scaling elliptic solver for $p$-multigrid

Autor: Huismann, Immo, Stiller, Jörg, Fröhlich, Jochen

High-order methods gain increased attention in computational fluid dynamics. However, due to the time step restrictions arising from the semi-implicit time stepping for the incompressible case, the potential advantage of these methods depends critica

Externí odkaz: http://arxiv.org/abs/1808.03595

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Factorizing the factorization - a spectral-element solver for elliptic equations with linear operation count

Autor: Huismann, Immo, Stiller, Jörg, Fröhlich, Jochen

High-order methods gain more and more attention in computational fluid dynamics. However, the potential advantage of these methods depends critically on the availability of efficient elliptic solvers. With spectral-element methods, static condensatio

Externí odkaz: http://arxiv.org/abs/1601.08179

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