Littérature scientifique sur le sujet « Semi-Lagrangian discretizations »
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Articles de revues sur le sujet "Semi-Lagrangian discretizations"
Bernard-Champmartin, Aude, Jean-Philippe Braeunig, Christophe Fochesato et Thierry Goudon. « A Semi-Lagrangian Approach for Dilute Non-Collisional Fluid-Particle Flows ». Communications in Computational Physics 19, no 3 (mars 2016) : 801–40. http://dx.doi.org/10.4208/cicp.180315.110915a.
Texte intégralRivest, Chantal, Andrew Staniforth et André Robert. « Spurious Resonant Response of Semi-Lagrangian Discretizations to Orographic Forcing : Diagnosis and Solution ». Monthly Weather Review 122, no 2 (février 1994) : 366–76. http://dx.doi.org/10.1175/1520-0493(1994)122<0366:srrosl>2.0.co;2.
Texte intégralCordero, Elisabetta, et Andrew Staniforth. « A Problem with the Robert–Asselin Time Filter for Three-Time-Level Semi-Implicit Semi-Lagrangian Discretizations ». Monthly Weather Review 132, no 2 (février 2004) : 600–610. http://dx.doi.org/10.1175/1520-0493(2004)132<0600:apwtrt>2.0.co;2.
Texte intégralGuo, Wei, Ramachandran D. Nair et Jing-Mei Qiu. « A Conservative Semi-Lagrangian Discontinuous Galerkin Scheme on the Cubed Sphere ». Monthly Weather Review 142, no 1 (1 janvier 2014) : 457–75. http://dx.doi.org/10.1175/mwr-d-13-00048.1.
Texte intégralArdhuin, F., et T. H. C. Herbers. « Numerical and Physical Diffusion : Can Wave Prediction Models Resolve Directional Spread ? » Journal of Atmospheric and Oceanic Technology 22, no 7 (1 juillet 2005) : 886–95. http://dx.doi.org/10.1175/jtech1723.1.
Texte intégralRoy, Bruno, Pierre Poulin et Eric Paquette. « Neural UpFlow ». Proceedings of the ACM on Computer Graphics and Interactive Techniques 4, no 3 (22 septembre 2021) : 1–26. http://dx.doi.org/10.1145/3480147.
Texte intégralBonaventura, Luca, et Roberto Ferretti. « Flux form Semi-Lagrangian methods for parabolic problems ». Communications in Applied and Industrial Mathematics 7, no 3 (1 septembre 2016) : 56–73. http://dx.doi.org/10.1515/caim-2016-0022.
Texte intégralFilbet, Francis, et Charles Prouveur. « High order time discretization for backward semi-Lagrangian methods ». Journal of Computational and Applied Mathematics 303 (septembre 2016) : 171–88. http://dx.doi.org/10.1016/j.cam.2016.01.024.
Texte intégralYang, XueSheng, JiaBin Chen, JiangLin Hu, DeHui Chen, XueShun Shen et HongLiang Zhang. « A semi-implicit semi-Lagrangian global nonhydrostatic model and the polar discretization scheme ». Science in China Series D : Earth Sciences 50, no 12 (décembre 2007) : 1885–91. http://dx.doi.org/10.1007/s11430-007-0124-7.
Texte intégralShashkin, V. V., et M. A. Tolstykh. « Inherently mass-conservative version of the semi-Lagrangian absolute vorticity (SL-AV) atmospheric model dynamical core ». Geoscientific Model Development 7, no 1 (21 février 2014) : 407–17. http://dx.doi.org/10.5194/gmd-7-407-2014.
Texte intégralThèses sur le sujet "Semi-Lagrangian discretizations"
Peixoto, Pedro da Silva. « Análise de discretizações e interpolações em malhas icosaédricas e aplicações em modelos de transporte semi-lagrangianos ». Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/45/45132/tde-26062013-174032/.
Texte intégralSpherical domains are used to model many physical phenomena, as, for instance, global numerical weather prediction. The sphere can be discretized in several ways, as for example a regular latitude-longitude grid. Recently, also motivated by a better use of parallel computers, more isotropic grids have been adopted in atmospheric global circulation models. Among those, the icosahedral grids are promising. Which kind of discretization methods and interpolation schemes are the best to use on those grids are still a research subject. Discretization of the sphere may be done in many ways and, recently, to make better use of computational resources, researchers are adopting more isotropic grids, such as the icosahedral one. In this thesis, we investigate in detail the numerical methodology to be used in atmospheric models on icosahedral grids. The usual finite volume method of discretization of the divergence of a vector field is based on the divergence theorem and makes use of the midpoint rule for integration on the edges of computational cells. The error distribution obtained with this method usually presents a strong correlation with some characteristics of the icosahedral grid. We introduced the concept of cell alignment and developed a theory which explains the grid imprinting patterns observed with the usual divergence discretization. We show how grid alignment impacts in the order of the divergence discretization. The theory developed applies to any geodesic grid and can also be used for other operators such as curl and Laplacian. Several interpolation schemes suitable for icosahedral grids were analysed, including the vector interpolation and reconstruction problem on staggered grids. We considered alternative vector reconstruction methods, in particular, we developed a hybrid low cost and good precision method. Finally, employing the discretizations and interpolations previously analysed, we developed a semi-Lagrangian transport method for geodesic icosahedral grids. Several tests were carried out, including deformational test cases, which demonstrated that the methodology is suitable to use in global atmospheric models. The computational platform developed in this thesis, including mesh generation, interpolation, vector reconstruction and the transport model, provides a basis for future development of global atmospheric models on icosahedral grids.
Norman, Matthew Ross. « Investigation of higher-order accuracy for a conservative semi-lagrangian discretization of the atmospheric dynamical equations ». 2008. http://www.lib.ncsu.edu/theses/available/etd-03312008-165322/unrestricted/etd.pdf.
Texte intégralLivres sur le sujet "Semi-Lagrangian discretizations"
Crockett, Stephen Robert. A semi-lagrangian discretization scheme for solving the advection-diffusion equation in two-dimensional simply connected regions. Ottawa : National Library of Canada, 1993.
Trouver le texte intégralChapitres de livres sur le sujet "Semi-Lagrangian discretizations"
Lauritzen, Peter H., Paul A. Ullrich et Ramachandran D. Nair. « Atmospheric Transport Schemes : Desirable Properties and a Semi-Lagrangian View on Finite-Volume Discretizations ». Dans Numerical Techniques for Global Atmospheric Models, 185–250. Berlin, Heidelberg : Springer Berlin Heidelberg, 2011. http://dx.doi.org/10.1007/978-3-642-11640-7_8.
Texte intégralFALCONE, MAURIZIO, ROBERTO FERRETTI et TIZIANA MANFRONI. « OPTIMAL DISCRETIZATION STEPS IN SEMI–LAGRANGIAN APPROXIMATION OF FIRST–ORDER PDES ». Dans Series on Advances in Mathematics for Applied Sciences, 95–117. WORLD SCIENTIFIC, 2001. http://dx.doi.org/10.1142/9789812799807_0006.
Texte intégralRapports d'organisations sur le sujet "Semi-Lagrangian discretizations"
Xu, Jin, Dongbin Xiu et George E. Karniadakis. A Semi-Lagrangian Method for Turbulence Simulations Using Mixed Spectral Discretizations. Fort Belvoir, VA : Defense Technical Information Center, novembre 2001. http://dx.doi.org/10.21236/ada460652.
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