Search Results - "Chopard, B"

Impact of collision models on the physical properties and the stability of lattice Boltzmann methods by Coreixas, C., Wissocq, G., Chopard, B., Latt, J.

“…The lattice Boltzmann method (LBM) is known to suffer from stability issues when the collision model relies on the BGK approximation, especially in the zero…”
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Advances in multi-domain lattice Boltzmann grid refinement by Lagrava, D., Malaspinas, O., Latt, J., Chopard, B.

“…Grid refinement has been addressed by different authors in the lattice Boltzmann method community. The information communication and reconstruction on grid…”
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Hermite regularization of the lattice Boltzmann method for open source computational aeroacoustics by Brogi, F., Malaspinas, O., Chopard, B., Bonadonna, C.

“…The lattice Boltzmann method (LBM) is emerging as a powerful engineering tool for aeroacoustic computations. However, the LBM has been shown to present…”
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A framework for multi-scale modelling by Chopard, B., Borgdorff, Joris, Hoekstra, A. G.

“…We review a methodology to design, implement and execute multi-scale and multi-science numerical simulations. We identify important ingredients of multi-scale…”
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The lattice Boltzmann advection-diffusion model revisited by Chopard, B., Falcone, J. L., Latt, J.

“…Advection-diffusion processes can be simulated by the Lattice Boltzmann method. Two formulations have been proposed in the literature. We show that they are…”
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Fluid dynamics, soft matter and complex systems: recent results and new methods by Chopard, B., Ansumali, S., Patil, D. V., Karlin, I., Venkatesan, D. S.

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General regularized boundary condition for multi-speed lattice Boltzmann models by Malaspinas, O., Chopard, B., Latt, J.

“…The lattice Boltzmann method is nowadays a common tool for solving computational fluid dynamics problems. One of the difficulties of this numerical approach is…”
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Improving predictability of time series using maximum entropy methods by Chliamovitch, G., Dupuis, A., Golub, A., Chopard, B.

“…We discuss how maximum entropy methods may be applied to the reconstruction of Markov processes underlying empirical time series and compare this approach to…”
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Measurements of wall shear stress with the lattice Boltzmann method and staircase approximation of boundaries by Stahl, B., Chopard, B., Latt, J.

“…We analyze the accuracy of wall shear stress measurements in lattice Boltzmann simulations that are based on a voxel representation of the geometry and…”
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A spatio-temporal model for spontaneous thrombus formation in cerebral aneurysms by Malaspinas, O., Turjman, A., Ribeiro de Sousa, D., Garcia-Cardena, G., Raes, M., Nguyen, P.-T. T., Zhang, Y., Courbebaisse, G., Lelubre, C., Zouaoui Boudjeltia, K., Chopard, B.

“…We propose a new numerical model to describe thrombus formation in cerebral aneurysms. This model combines CFD simulations with a set of bio-mechanical…”
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The application of multiscale modelling to the process of development and prevention of stenosis in a stented coronary artery by Evans, D.J.W, Lawford, P.V, Gunn, J, Walker, D, Hose, D.R, Smallwood, R.H, Chopard, B, Krafczyk, M, Bernsdorf, J, Hoekstra, A

“…single-scale CA or ABMs that mutually interact across the scales. Decomposition is facilitated by building a scale separation map on which each single-scale…”
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Asymmetric lattice Boltzmann model for shallow water flows by Chopard, B., Pham, V.T., Lefèvre, L.

“…•Definition of an asymmetric lattice Boltzmann scheme based on a Galilean transformation.•Proofs for the convergence and order of convergence.•Stability…”
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Performance of distributed multiscale simulations by Borgdorff, J., Ben Belgacem, M., Bona-Casas, C., Fazendeiro, L., Groen, D., Hoenen, O., Mizeranschi, A., Suter, J. L., Coster, D., Coveney, P. V., Dubitzky, W., Hoekstra, A. G., Strand, P., Chopard, B.

“…Multiscale simulations model phenomena across natural scales using monolithic or component-based code, running on local or distributed resources. In this work,…”
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Risk analysis and controllability of credit market by Razakanirina, R. M., Chopard, B.

“…In this paper we present the behaviours of a simple credit market model built upon a static directed complex network topology. We found that the market…”
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Application of the multi distribution function lattice Boltzmann approach to thermal flows by Parmigiani, A., Huber, C., Chopard, B., Latt, J., Bachmann, O.

“…Numerical methods able to model high Rayleigh ( Ra ) and high Prandtl ( Pr ) number thermal convection are important to study large-scale geophysical phenomena…”
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Lattice Boltzmann Model for the Simulation of Flows in Open Channels with Application to Flows in a Submerged Sluice Gate by Marcou, O, Chopard, B, El Yacoubi, S, Hamroun, B, Lefèvre, L, Mendes, E

“…Numerical simulations of free-surface flows are important to provide a prediction tool for the optimal management of irrigation canals. Here, we consider an…”
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Competing species dynamics : Qualitative advantage versus geography by GALAM, S, CHOPARD, B, MASSELOT, A, DROZ, M

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An evolution theory in finite size systems by CHOPARD, B, DROZ, M, GALAM, S

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Flow-related aspects of cerebral aneurysms by Rufenacht, D.A., Stergiopulos, N., Chopard, B., Frangi, A., Hose, R., Cebral, J.R., Lylyk, P.

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Impact of collision models on the physical properties and the stability of lattice Boltzmann methods by Coreixas, C., Wissocq, G., Chopard, B., Latt, J.

“…The lattice Boltzmann method (LBM) is known to suffer from stability issues when the collision model relies on the BGK approximation, especially in the zero…”
Get full text