Results 41 to 50 of about 345 (111)

Sparse geometries handling in lattice-Boltzmann method implementation for graphic processors

open access: yes, 2018
We describe a high-performance implementation of the lattice-Boltzmann method (LBM) for sparse geometries on graphic processors. In our implementation we cover the whole geometry with a uniform mesh of small tiles and carry out calculations for each tile
Szafran, Roman G., Tomczak, Tadeusz
core   +1 more source

Fluid Flow Simulation and Optimisation with Lattice Boltzmann Methods on High Performance Computers - Application to the Human Respiratory System [PDF]

open access: yes, 2010
An overall strategy for numerical simulations of the full human respiratory system is introduced. The integrative approach takes advantage of numerical simulation, high performance computing and newly developed mathematical optimisation techniques, all ...
Krause, Mathias Joachim
core   +2 more sources

Simulating Stirred Tank Reactor Characteristics with a Lattice Boltzmann CFD Code

open access: yesChemical Engineering &Technology, Volume 47, Issue 3, Page 586-595, March 2024.
There is a need for reliable models of mixing in stirred tanks, which is widely used in the chemical and process industry but complex and not fully understood. A lattice Boltzmann code with a large eddy simulation turbulence model was used to determine power numbers and mixing times in stirred tanks with different impellers.
Jule Kersebaum   +3 more
wiley   +1 more source

Lattice Boltzmann Methods for Partial Differential Equations [PDF]

open access: yes, 2023
Lattice Boltzmann methods provide a robust and highly scalable numerical technique in modern computational fluid dynamics. Besides the discretization procedure, the relaxation principles form the basis of any lattice Boltzmann scheme and render the ...
Simonis, Stephan
core   +2 more sources

Consistent lattice Boltzmann methods for the volume averaged Navier-Stokes equations

open access: yes, 2022
We derive a novel lattice Boltzmann scheme, which uses a pressure correction forcing term for approximating the volume averaged Navier-Stokes equations (VANSE) in up to three dimensions. With a new definition of the zeroth moment of the Lattice Boltzmann
Bukreev, Fedor   +4 more
core   +1 more source

Thermal Lattice Boltzmann Methods for the Simulation of Turbulent Flows with Conjugate Heat Transfer – Application to Refrigerated Vehicles [PDF]

open access: yes, 2020
In dieser Arbeit wird eine thermische Lattice-Boltzmann-Methode (TLBM) für die instationäre Simulation turbulenter Strömungen mit natürlicher Konvektion und konjugierter Wärmeübertragung vorgestellt. Turbulente Strömungen mit ihren chaotischen Druck- und
Gaedtke, Maximilian
core   +2 more sources

Simulation of Dynamic Rearrangement Events in Wall-Flow Filters Applying Lattice Boltzmann Methods [PDF]

open access: yes, 2023
Wall-flow filters are applied in the exhaust treatment of internal combustion engines for the removal of particulate matter (PM). Over time, the pressure drop inside those filters increases due to the continuously introduced solid material, which forms ...
Dittler, Achim   +3 more
core   +2 more sources

Mesoscopic simulations at the physics-chemistry-biology interface

open access: yes, 2019
We discuss the Lattice Boltzmann-Particle Dynamics (LBPD) multiscale paradigm for the simulation of complex states of flowing matter at the interface between Physics, Chemistry and Biology.
Bernaschi, Massimo   +2 more
core   +1 more source

Lattice Boltzmann Methods for Particulate Flows with Medical and Technical Applications [PDF]

open access: yes, 2016
Particulate flows appear in numerous medical and technical applications. The main aim of this thesis is to contribute models and numerical schemes towards an accurate as well as efficient simulation of a huge number of arbitrarily shaped particles.
Henn, Thomas
core   +2 more sources

Identification of reaction rate parameters from uncertain spatially distributed concentration data using gradient-based PDE constrained optimization [PDF]

open access: yes
A promising approach to quantify reaction rate parameters is to formulate and solve inverse problems by minimizing the deviation between simulation and measurement.
Bukreev, Fedor   +9 more
core   +2 more sources

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