Zobrazeno 1 - 10 of 46 pro vyhledávání: '"Keijo Mattila"'
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Akademický článek
Chromatin organization regulates viral egress dynamics
Autor: Vesa Aho, Markko Myllys, Visa Ruokolainen, Satu Hakanen, Elina Mäntylä, Jori Virtanen, Veijo Hukkanen, Thomas Kühn, Jussi Timonen, Keijo Mattila, Carolyn A. Larabell, Maija Vihinen-Ranta
Publikováno v: Scientific Reports, Vol 7, Iss 1, Pp 1-10 (2017)
Abstract Various types of DNA viruses are known to elicit the formation of a large nuclear viral replication compartment and marginalization of the cell chromatin. We used three-dimensional soft x-ray tomography, confocal and electron microscopy, com
Externí odkaz: https://doaj.org/article/6fc9b143eefe40759c570e5b44160ee8
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3
Visualization in the integrated SimPhoNy multiscale simulation framework
Autor: Nathan Franklin, Guillermo Román-Pérez, Jari Hyväluoma, G.A. García, Adham Hashibon, Kit Choi, Keijo Mattila, Y. Makushok, Mehdi Sadeghi, Joan Adler, Jesus Lama, Didrik Pinte, Ioannis Tziakos, Sampo Kulju, V. Makushok, Amihai Silverman
Publikováno v: Computer Physics Communications. 231:45-61
We describe three distinct approaches to visualization for multiscale materials modelling research. These have been developed with the framework of the SimPhoNy FP7 EU-project, and complement each other in their requirements and possibilities. All ha
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6310dd53e1f6ce8f60fee97ee1acdd70
https://doi.org/10.1016/j.cpc.2018.05.005
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4
The Effect of Void Structure on the Permeability of Fibrous Networks
Autor: Jussi Timonen, Keijo Mattila, Axel Ekman, Ahmad M. Al-Qararah, Antti Koponen
Publikováno v: Koponen, A, Ekman, A, Mattila, K, Al-Qararah, A M & Timonen, J 2017, ' The Effect of Void Structure on the Permeability of Fibrous Networks ', Transport in Porous Media, vol. 117, no. 2, pp. 247-259 . https://doi.org/10.1007/s11242-017-0831-2
A Kozeny–Carman-based model of permeability for fibrous networks is proposed: the original model is extended by incorporating information about the local structure of the void space. Furthermore, it is demonstrated how in practice this added struct
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a72f87bcba029d09e540fb02322f9c9e
https://doi.org/10.1007/s11242-017-0831-2
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5
Coupling of lattice-Boltzmann solvers with suspended particles using the MPI intercommunication framework
Autor: Rupert W. Nash, Tuomas Puurtinen, Keijo Mattila, Jukka I. Toivanen, Jussi Timonen, Peter V. Coveney, Jari Hyväluoma
Publikováno v: Advances in Engineering Software. 111:52-57
The MPI intercommunication framework was used for coupling of two lattice-Boltzmann solvers with suspended particles, which model advection and diffusion respectively of these particles in a carrier fluid. Simulation domain was divided into two parts
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2cdaa4086ca64634e89f70bafa6f4856
https://doi.org/10.1016/j.advengsoft.2016.07.008
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6
Designing a graphics processing unit accelerated petaflop capable lattice Boltzmann solver: Read aligned data layouts and asynchronous communication
Autor: Keijo Mattila, Jan Westerholm, Fredrik Robertsén
Publikováno v: The International Journal of High Performance Computing Applications. 31:246-255
The lattice Boltzmann method is a well-established numerical approach for complex fluid flow simulations. Recently, general-purpose graphics processing units (GPUs) have become available as high-performance computing resources at large scale. We repo
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::7c005699feda6a86f139b173c6d0528e
https://doi.org/10.1177/1094342016658109
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A prospect for computing in porous materials research: Very large fluid flow simulations
Autor: Keijo Mattila, Tuomas Turpeinen, Jussi Timonen, Fredrik Robertsén, Tuomas Puurtinen, Markko Myllys, Rodrigo Surmas, Jari Hyväluoma, Jan Westerholm
Publikováno v: Mattila, K, Puurtinen, T, Hyväluoma, J, Surmas, R, Myllys, M, Turpeinen, T, Robertsén, F, Westerholm, J & Timonen, J 2016, ' A prospect for computing in porous materials research : Very large fluid flow simulations ', Journal of Computational Science, vol. 12, pp. 62-76 . https://doi.org/10.1016/j.jocs.2015.11.013
Properties of porous materials, abundant both in nature and industry, have broad influences on societies via, e.g. oil recovery, erosion, and propagation of pollutants. The internal structure of many porous materials involves multiple scales which hi
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0f15daf50bc21932be179a87ca3e64e4
https://doi.org/10.1016/j.jocs.2015.11.013
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8
High-Reynolds-number turbulent cavity flow using the lattice Boltzmann method
Autor: Daniel F. Puleri, Mauro Sbragaglia, Amanda Randles, Keijo Mattila, Andrea Scagliarini, Luiz Adolfo Hegele, Paulo Cesar Philippi, John Gounley
Publikováno v: Physical review. E
98 (2018). doi:10.1103/PhysRevE.98.043302
info:cnr-pdr/source/autori:Hegele Jr, L. A.; Scagliarini, A.; Sbragaglia, M.; Mattila, K. K.; Philippi, P. C.; Puleri, D. F.; Gounley, J.; Randles, A./titolo:High-Reynolds-number turbulent cavity flow using the lattice Boltzmann method/doi:10.1103%2FPhysRevE.98.043302/rivista:Physical review. E (Print)/anno:2018/pagina_da:/pagina_a:/intervallo_pagine:/volume:98
We present a boundary condition scheme for the lattice Boltzmann method that has significantly improved stability for modeling turbulent flows while maintaining excellent parallel scalability. Simulations of a three-dimensional lid-driven cavity flow
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f667126a3a89e7e3e7fc27b47f5ff798
https://publications.cnr.it/doc/395784
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9
High-order lattice-Boltzmann
Autor: Luiz Adolfo Hegele, Keijo Mattila, Diogo Nardelli Siebert, Paulo Cesar Philippi
Publikováno v: Journal of the Brazilian Society of Mechanical Sciences and Engineering. 38:1401-1419
Unlike conventional CFD methods, the lattice Boltzmann method (LBM) describes the dynamic behaviour of physical systems in a mesoscopic scale, based on discrete forms of kinetic equations. In addition to the classical collision-propagation scheme in
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::1306eb1b1b4642b339041a115b25f98e
https://doi.org/10.1007/s40430-015-0441-2
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10
Lattice Boltzmann Simulations at Petascale on Multi-GPU Systems with Asynchronous Data Transfer and Strictly Enforced Memory Read Alignment
Autor: Keijo Mattila, Jan Westerholm, Fredrik Robertsén
Publikováno v: PDP
The lattice Boltzmann method is a well-established numerical approach for complex fluid flow simulations. Recently general-purpose graphics processing units have become accessible as high-performance computing resources at large-scale. We report on i
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::71e04d7e2b1ba305c5b5a9dc8f25beec
https://doi.org/10.1109/PDP.2015.71
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