Publications de Jonas Marcel Lätt

Computational performance of a parallelized three-dimensional high-order spectral element toolbox

Michel Deville, Jonas Marcel Lätt, Roland Bouffanais, Christoph Bosshard

In this paper, a comprehensive performance review of an MPI-based high-order three-dimensional spectral element method C++ toolbox is presented. The focus is put on the performance evaluation of several aspects with a particular emphasis on the parallel ef ...

2011

General regularized boundary condition for multi-speed lattice Boltzmann models

Jonas Marcel Lätt, Orestis Pileas Malaspinas

The lattice Boltzmann method is nowadays a common tool for solving computational fluid dynamics problems. One of the difficulties of this numerical approach is the treatment of the boundaries, because of the lack of physical intuition for the behavior of t ...

2011

Optimization of microfluidic single cell trapping for long-term on-chip culture

Matthias Lütolf, Philippe Renaud, Jonas Marcel Lätt, Stefan Kobel, Ana Valero

The poor efficiency of microfluidic single cell trapping is currently restricting the full potential of state-of-the-art single cell analyses. Using fluid dynamics simulations in combination with particle image velocimetry to systematically optimize trap a ...

Royal Society of Chemistry2010

Measurements of wall shear stress with the lattice Boltzmann method and staircase approximation of boundaries

Jonas Marcel Lätt

We analyze the accuracy of wall shear stress measurements in lattice Boltzmann simulations that are based on a voxel representation of the geometry and staircase approximation of boundaries. Such approximations are commonly used in the context of lattice B ...

2010

Computational Performance of a Parallelized Three-Dimensional High-Order Spectral Element Toolbox

Michel Deville, Jonas Marcel Lätt, Nicolas Fietier, Sohrab Jairo Kehtari, Roland Bouffanais, Vincent Keller, Christian Clémençon, Christoph Bosshard

In this paper, a comprehensive performance review of all MPI-based high-order three-dimensional spectral element method C++ toolbox is presented. The focus is put on the performance evaluation of aspects with a particular emphasis on the parallel efficienc ...

Springer-Verlag New York, Ms Ingrid Cunningham, 175 Fifth Ave, New York, Ny 10010 Usa2009

Straight velocity boundaries in the lattice Boltzmann method

Michel Deville, Bastien Chopard, Jonas Marcel Lätt, Orestis Pileas Malaspinas

2008