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Related Experiment Video

Updated: Jul 6, 2026

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

Published on: April 12, 2019

Multispeed models in off-lattice Boltzmann simulations.

André Bardow¹, Iliya V Karlin, Andrei A Gusev

¹Process & Energy Department, Delft University of Technology, 2628 CA Delft, The Netherlands. a.bardow@tudelft.nl

Physical Review. E, Statistical, Nonlinear, and Soft Matter Physics

|March 21, 2008

Summary

This summary is machine-generated.

Multispeed lattice Boltzmann models improve accuracy for complex flow simulations. This off-lattice approach makes large-scale computations practical on unstructured grids.

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New Features in Visual Dynamics 3.0

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Last Updated: Jul 6, 2026

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

Multiscale Sampling of a Heterogeneous Water/Metal Catalyst Interface using Density Functional Theory and Force-Field Molecular Dynamics

Published on: April 12, 2019

New Features in Visual Dynamics 3.0

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Published on: August 9, 2024

Area of Science:

Computational fluid dynamics
Numerical methods

Background:

The lattice Boltzmann method (LBM) is a powerful tool for simulating complex fluid flows.
Standard LBM is typically limited to structured grids, restricting its application.
Off-lattice methods offer flexibility but can be complex to implement.

Purpose of the Study:

To implement recently proposed multispeed lattice Boltzmann models.
To leverage the flexibility of off-lattice methods for enhanced accuracy.
To enable large-scale simulations on unstructured grids.

Main Methods:

Utilized a general characteristic-based algorithm for off-lattice Boltzmann simulations.
Implemented multispeed lattice Boltzmann models within the off-lattice framework.
Extended the method to handle unstructured grids.

Main Results:

Demonstrated that multispeed models significantly enhance simulation accuracy.
Successfully preserved the desirable properties of standard LBM in the off-lattice approach.
Showcased the practicality of large-scale off-lattice computations.

Conclusions:

The integration of multispeed models with off-lattice LBM offers a highly accurate simulation approach.
This method overcomes the limitations of structured grids, enabling complex flow simulations.
The proposed technique makes large-scale, accurate off-lattice LBM computations feasible.