Zobrazeno 1 - 10
of 67
pro vyhledávání: '"Sergej Rjasanow"'
Autor:
Torsten Keßler, Sergej Rjasanow
Publikováno v:
Kinetic & Related Models. 12:507-549
In this paper, we present an application of a Galerkin-Petrov method to the spatially one-dimensional Boltzmann equation. The three-dimensional velocity space is discretised by a spectral method. The space of the test functions is spanned by polynomi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::fa05c75d283766bf5cdb5807dc3e5204
https://doi.org/10.3934/krm.2019021
https://doi.org/10.3934/krm.2019021
Publikováno v:
Journal of Computational Science. 28:193-203
The development of scientific software can be generally characterized by an initial phase of rapid prototyping and the subsequent transition to computationally efficient production code. Unfortunately, most programming languages are not well-suited f
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::237377d87085b6e3ddd36bdc5c0830f2
https://doi.org/10.1016/j.jocs.2018.08.008
https://doi.org/10.1016/j.jocs.2018.08.008
Publikováno v:
Mathematical Methods in the Applied Sciences. 41:6080-6107
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::35bc4b9a843fedb386e5504acb3c7c2c
https://doi.org/10.1002/mma.5121
https://doi.org/10.1002/mma.5121
Autor:
Steffen Weißer, Sergej Rjasanow
Publikováno v:
Lecture Notes in Computational Science and Engineering ISBN: 9783030142438
In this paper, we present a modification of the clustering procedure for the fast Boundary Element Method (BEM), based on hierarchical techniques for the matrix decomposition and Adaptive Cross Approximation (ACA). An initial segmentation of the surf
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::e69e652c0f2c6d49f2da668e6118402d
https://doi.org/10.1007/978-3-030-14244-5_14
https://doi.org/10.1007/978-3-030-14244-5_14
Publikováno v:
Multi-scale Simulation of Composite Materials ISBN: 9783662579565
In this chapter, we construct numerical solutions to the problems in the field of solid mechanics by combining the Boundary Element Method (BEM) with interpolation by means of radial basis functions. The main task is to find an approximation to a par
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::b19c3b318c942e3b72951d20da889a5b
https://doi.org/10.1007/978-3-662-57957-2_5
https://doi.org/10.1007/978-3-662-57957-2_5
Autor:
Stefan Diebels, Sergej Rjasanow
Due to their high stiffness and strength and their good processing properties short fibre reinforced thermoplastics are well-established construction materials.Up to now, simulation of engineering parts consisting of short fibre reinforced thermoplas
Autor:
L. Weggler, Sergej Rjasanow
Publikováno v:
Mathematical Methods in the Applied Sciences. 40:2522-2531
A new variant of the Adaptive Cross Approximation (ACA) for approximation of dense block matrices is presented. This algorithm can be applied to matrices arising from the Boundary Element Methods (BEM) for elliptic or Maxwell systems of partial diffe
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::592051410f61e0c5b739df9fdb777e16
https://doi.org/10.1002/mma.4174
https://doi.org/10.1002/mma.4174
Publikováno v:
Physica D: Nonlinear Phenomena. 406:132298
The classical ground state of the Frenkel–Kontorova model is investigated for the case of a globally deformable substrate potential, whose amplitude is a function of the position of all particles. This system serves as an idealised description of a
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::04dcaebbac1f9201f41c54f0b9092cd4
https://doi.org/10.1016/j.physd.2019.132298
https://doi.org/10.1016/j.physd.2019.132298
This paper presents a grid-free simulation algorithm for the fully three-dimensional Vlasov--Poisson system for collisionless electron plasmas. We employ a standard particle method for the numerical approximation of the distribution function. Whereas
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2b2873a93b4e16cd3fdac0cd202edcf6
Autor:
Sergej Rjasanow, Irene M. Gamba
In this work, we propose a new Galerkin-Petrov method for the numerical solution of the classical spatially homogeneous Boltzmann equation. This method is based on an approximation of the distribution function by associated Laguerre polynomials and s
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::777f84dd1f38e8e0d84ddf7b665b8f4c