Results 11 to 20 of about 99 (66)

Evaluation of a Near-Wall-Modeled Large Eddy Lattice Boltzmann Method for the Analysis of Complex Flows Relevant to IC Engines

Computation, 2020
In this paper, we compare the capabilities of two open source near-wall-modeled large eddy simulation (NWM-LES) approaches regarding prediction accuracy, computational costs and ease of use to predict complex turbulent flows relevant to internal ...
Marc Haussmann, Florian Ries, Jonathan B. Jeppener-Haltenhoff, Yongxiang Li, Marius Schmidt, Cooper Welch, Lars Illmann, Benjamin Böhm, Hermann Nirschl, Mathias J. Krause, Amsini Sadiki   +10 more
doaj   +2 more sources

OpenLB User Guide: Associated with Release 1.6 of the Code [PDF]

arXiv.org, 2023
OpenLB is an object-oriented implementation of LBM. It is the first implementation of a generic platform for LBM programming, which is shared with the open source community (GPLv2). Since the first release in 2007, the code has been continuously improved and extended which is documented by thirteen releases as well as the corresponding release notes ...
Kummerländer, Adrian, Avis, Samuel J., Kusumaatmaja, Halim, Bukreev, Fedor, Crocoll, Michael, Dapelo, Davide, Großmann, Simon, Hafen, Nicolas, Ito, Shota, Jeßberger, Julius, Kummer, Eliane, Marquardt, Jan E., Mödl, Johanna, Pertzel, Tim, Prinz, František, Raichle, Florian, Sadric, Martin, Schecher, Maximilian, Teutscher, Dennis, Simonis, Stephan, Krause, Mathias J.   +20 more
openaire   +3 more sources

Lattice Boltzmann Simulation of Lauric Acid Melting in Rectangular Cavity With Different Fin Configurations With OpenLB

Energy Storage
ABSTRACTLatent heat energy storage systems (LHESS) using phase change materials (PCMs) offer high thermal energy storage density and effective temperature regulation due to their ability to absorb and release heat at nearly constant temperatures. However, accurately simulating the melting process of PCMs remains challenging due to the nonlinear nature ...
Alexandre de Quadro Tacques Filho, Tim Niklas Bingert, Adrian Kummerländer, Luiz Eduardo Czelusniak, Mathias J. Krause, Márcio Dorn   +5 more
openaire   +2 more sources

OpenLB-UQ: An Uncertainty Quantification Framework for Incompressible Fluid Flow Simulations

arXiv.org
Uncertainty quantification (UQ) is crucial in computational fluid dynamics to assess the reliability and robustness of simulations, given the uncertainties in input parameters. OpenLB is an open-source lattice Boltzmann method library designed for efficient and extensible simulations of complex fluid dynamics on high-performance computers. In this work,
Zhong, Mingliang, Kummerländer, Adrian, Ito, Shota, Krause, Mathias J., Frank, Martin, Simonis, Stephan   +5 more
openaire   +3 more sources

Uncertain data assimilation for urban wind flow simulations with OpenLB-UQ

arXiv.org
Accurate prediction of urban wind flow is essential for urban planning, pedestrian safety, and environmental management. Yet, it remains challenging due to uncertain boundary conditions and the high cost of conventional CFD simulations. This paper presents the use of the modular and efficient uncertainty quantification (UQ) framework OpenLB-UQ for ...
Zhong, Mingliang, Teutscher, Dennis, Kummerländer, Adrian, Krause, Mathias J., Frank, Martin, Simonis, Stephan   +5 more
openaire   +3 more sources

Database Resources of the National Genomics Data Center, China National Center for Bioinformation in 2022. [PDF]

Nucleic Acids Res, 2022
The National Genomics Data Center (NGDC), part of the China National Center for Bioinformation (CNCB), provides a family of database resources to support global research in both academia and industry.
CNCB-NGDC Members and Partners.
europepmc   +2 more sources

Binary mixture flow with free energy lattice Boltzmann methods [PDF]

arXiv.org, 2022
We use free energy lattice Boltzmann methods (FRE LBM) to simulate shear and extensional flow of a binary mixture in two and three dimensions. To this end, two classical configurations are digitally twinned, namely a parallel-band device for binary shear
Stephan Simonis, J. Nguyen, Samuel J. Avis, W. Dörfler, M. Krause   +4 more
semanticscholar   +1 more source

Lattice-Boltzmann simulations of traffic-related atmospheric pollutant dispersion in urban areas

8th European Congress on Computational Methods in Applied Sciences and Engineering, 2022
. The developing field of urban physics includes computational fluid dynamics (CFD) as a tool to model wind comfort, heat management and pollutant dispersion in cities.
M. Pasquier, S. Jay, P. Sagaut
semanticscholar   +1 more source

Research Software Engineering in OpenLB: Refactoring a Legacy Code to State-Of-The-Art Performance

, 2023
Lattice Boltzmann Methods (LBM) are an established approach for simulating a wide variety of transport phenomena. The software framework OpenLB has been in continuous development for 15 years and counting as one of the major open source LBM research codes. Due to the need to develop the library alongside the primary research of the involved scientists,
Kummerländer, Adrian, Krause, Mathias J.   +1 more
openaire   +1 more source

Lattice Boltzmann Performance Engineering in OpenLB

, 2022
Lattice Boltzmann Methods (LBM) are an established mesoscopic approach for simulating a wide variety of transport phenomena. While they are uniquely suited to HPC usage, obtaining maximum performance across different targets and applications is an active topic of research.
openaire   +1 more source