Theory of the lattice Boltzmann method: Dispersion, dissipation, isotropy, Galilean invariance, and stability
Physical Review E - Statistical Physics, Plasmas, Fluids, and Related Interdisciplinary Topics, ISSN: 1063-651X, Vol: 61, Issue: 6, Page: 6546-6562
2000
- 1,947Citations
- 627Captures
- 1Mentions
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Metrics Details
- Citations1,947
- Citation Indexes1,947
- 1,947
- CrossRef897
- Captures627
- Readers627
- 602
- 25
- Mentions1
- News Mentions1
- 1
Most Recent News
Large-Eddy Simulations of Turbulent Flows around Buildings Using the Atmospheric Boundary Layer Environment–Lattice Boltzmann Model (ABLE-LBM)
1. Introduction Section: The lattice Boltzmann method (LBM) is a relatively new numerical technique for fluid flow modeling. LBM is different from traditional computational fluid
Article Description
The generalized hydrodynamics (the wave vector dependence of the transport coefficients) of a generalized lattice Boltzmann equation (LBE) is studied in detail. The generalized lattice Boltzmann equation is constructed in moment space rather than in discrete velocity space. The generalized hydrodynamics of the model is obtained by solving the dispersion equation of the linearized LBE either analytically by using perturbation technique or numerically. The proposed LBE model has a maximum number of adjustable parameters for the given set of discrete velocities. Generalized hydrodynamics characterizes dispersion, dissipation (hyperviscosities), anisotropy, and lack of Galilean invariance of the model, and can be applied to select the values of the adjustable parameters that optimize the properties of the model. The proposed generalized hydrodynamic analysis also provides some insights into stability and proper initial conditions for LBE simulations. The stability properties of some two-dimensional LBE models are analyzed and compared with each other in the parameter space of the mean streaming velocity and the viscous relaxation time. The procedure described in this work can be applied to analyze other LBE models. As examples, LBE models with various interpolation schemes are analyzed. Numerical results on shear flow with an initially discontinuous velocity profile (shock) with or without a constant streaming velocity are shown to demonstrate the dispersion effects in the LBE model; the results compare favorably with our theoretical analysis. We also show that whereas linear analysis of the LBE evolution operator is equivalent to Chapman-Enskog analysis in the long-wavelength limit (wave vector [Formula Presented] it can also provide results for large values of [Formula Presented] Such results are important for the stability and other hydrodynamic properties of the LBE method and cannot be obtained through Chapman-Enskog analysis. © 2000 The American Physical Society.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=0034206379&origin=inward; http://dx.doi.org/10.1103/physreve.61.6546; http://www.ncbi.nlm.nih.gov/pubmed/11088335; https://link.aps.org/doi/10.1103/PhysRevE.61.6546; http://harvest.aps.org/v2/journals/articles/10.1103/PhysRevE.61.6546/fulltext; http://link.aps.org/article/10.1103/PhysRevE.61.6546
American Physical Society (APS)
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