Zobrazeno 1 - 10
of 40
pro vyhledávání: '"Jonas Tölke"'
Publikováno v:
Computers & Mathematics with Applications. 65:864-881
We propose a lattice Boltzmann model for immiscible two-phase Stokes flow with a local collision operator. The model is based on two different lattice Boltzmann automata, one for the flow field and one for an indicator function for the two different
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a88047a4900dec53ee497bf3049570e1
https://doi.org/10.1016/j.camwa.2012.05.018
https://doi.org/10.1016/j.camwa.2012.05.018
Publikováno v:
International Journal of Heat and Fluid Flow. 31:217-226
Double-diffusive convection in vertical annuluses with opposing temperature and concentration gradients is of fundamental interest and practical importance. However, available literature especially for higher Rayleigh numbers beyond Ra ⩽ 10 5 is sp
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::4c68e1509e4fff6de9b4877ab5f48275
https://doi.org/10.1016/j.ijheatfluidflow.2009.12.013
https://doi.org/10.1016/j.ijheatfluidflow.2009.12.013
Publikováno v:
The Leading Edge. 29:68-74
Permeability, unlike porosity, saturation, and lithology, is, arguably, impossible to infer from well data. Yet, it is the key parameter in reservoir simulation and also in well completion and stimulation decisions. The traditional method of obtainin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::d8bdf22dd91e5692426d113555ac57aa
https://doi.org/10.1190/1.3284055
https://doi.org/10.1190/1.3284055
Autor:
Manfred Krafczyk, Jonas Tölke
Publikováno v:
Computers & Mathematics with Applications. 58:898-902
We propose a scheme to reconstruct the flow field up to second order in a cell composed of four lattices nodes in 2 dimensions. The information contained in the higher order moments of the distribution functions is used to construct an interpolation
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5eeab7102ea62b555e362dfa7c3ec9c9
https://doi.org/10.1016/j.camwa.2009.02.012
https://doi.org/10.1016/j.camwa.2009.02.012
Autor:
C. Sorger, Stefan Kollmannsberger, S. Geller, Alexander Düster, Jonas Tölke, Manfred Krafczyk, Ernst Rank
Publikováno v:
International Journal for Numerical Methods in Engineering. 79:817-845
Over the last decade the Lattice Boltzmann method, which was derived from the kinetic gas theory, has matured as an efficient approach for solving Navier–Stokes equations. The p-FEM approach has proved to be highly efficient for a variety of proble
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f347c4941c0d732f94fe79ea9d68261e
https://doi.org/10.1002/nme.2581
https://doi.org/10.1002/nme.2581
Publikováno v:
Microsystem Technologies. 15:1379-1387
The efficiency of the valve-less rectification micropump depends primarily on the microfluidic diodicity (the ratio of the backward pressure drop to the forward pressure drop). In this study, different rectifying structures, including the conventiona
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::f946894d1c7b9e6ba8200c092e1c4ee9
https://doi.org/10.1007/s00542-009-0901-7
https://doi.org/10.1007/s00542-009-0901-7
Publikováno v:
Computer Methods in Applied Mechanics and Engineering. 198:367-376
A lattice Boltzmann model for vorticity–streamfunction formulations is proposed in this paper. The present model was validated by several benchmark problems. Excellent agreement between the present results and other numerical data shows that this m
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::419dbf844f29781347c4ef7798e7a4f3
https://doi.org/10.1016/j.cma.2008.08.007
https://doi.org/10.1016/j.cma.2008.08.007
Autor:
A. Papafotiou, Jonas Tölke, Hannes Flühler, Insa Neuweiler, J. Schaap, Andre Peters, Anders Kaestner, R. Hassanein, Wolfgang Durner, Peter Lehmann, Rainer Helmig, B. Ahrenholz
Publikováno v:
Advances in Water Resources. 31:1253-1268
A well-controlled 3-D experiment with pre-defined block heterogeneities is conducted, where neutron tomography is used to map 3-D water distribution after two successive drainage steps. The material and hydraulic properties of the two sands are first
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::6eea284f1eee6bda515463c71ab617b3
https://doi.org/10.1016/j.advwatres.2007.09.006
https://doi.org/10.1016/j.advwatres.2007.09.006
Autor:
Andre Peters, Wolfgang Durner, B. Ahrenholz, Jonas Tölke, Manfred Krafczyk, Anders Kaestner, Peter Lehmann
Publikováno v:
Advances in Water Resources. 31:1151-1173
In this work we use two numerical methods which rely only on the geometry and material parameters to predict capillary hysteresis in a porous material. The first numerical method is a morphological pore network (MPN) model, where structural elements
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::bc811ee29dda6d972e67c8d3f2c7589e
https://doi.org/10.1016/j.advwatres.2008.03.009
https://doi.org/10.1016/j.advwatres.2008.03.009
Autor:
Jonas Tölke
Publikováno v:
Computing and Visualization in Science. 13:29-39
In this article a very efficient implementation of a 2D-Lattice Boltzmann kernel using the Compute Unified Device Architecture (CUDA™) interface developed by nVIDIA® is presented. By exploiting the explicit parallelism exposed in the graphics hard
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::0b9c0e8834c69547ac26f8845296f804
https://doi.org/10.1007/s00791-008-0120-2
https://doi.org/10.1007/s00791-008-0120-2