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- Santosh Ansumali, Iliya V Karlin
- Physical review. E, Statistical, nonlinear, and…
- 2002

Derivation of the lattice Boltzmann method from the continuous kinetic theory [X. He and L. S. Luo, Phys. Rev. E 55, R6333 (1997); X. Shan and X. He, Phys. Rev. Lett. 80, 65 (1998)] is extended in order to obtain boundary conditions for the method. For the model of a diffusively reflecting moving solid wall, the boundary condition for the discrete set of… (More)

The entropy maximum approach to constructing equilibria in lattice kinetic equations is revisited. For a suitable entropy function, we derive explicitly the hydrodynamic local equilibrium, prove the H theorem for lattice Bhatnagar-Gross-Krook models, and develop a systematic method to account for additional constraints. Lattice-based simulations of… (More)

A detailed treatment of the classical Chapman-Enskog derivation of hydrodynamics is given in the framework of Grad's moment equations. Grad's systems are considered as the minimal kinetic models where the Chapman-Enskog method can be studied exactly, thereby providing the basis to compare various approximations in extending the hydrodynamic description… (More)

A new approach to the problem of reduced description for Boltzmann-type systems is developed. It involves a direct solution of two main problems: thermodynamici ty and dynamic invariance of reduced description. A universal construction is introduced, which gives a thermodynamic parameterization of an almost arbitrary approximation. Newton-type procedures of… (More)

For a one-dimensional benchmark shock tube problem, we implement the lattice Boltzmann method based on the H theorem ͓I. Karlin, A. Ferrante, and H. C. O ¨ ttinger, Europhys. Lett. 47, 182 ͑1999͔͒. Results of simulation demonstrate significant improvement of stability, as compared to realizations without explicit en-tropic estimations.

- Francesca Tosi, Stefano Ubertini, Sauro Succi, Hudong Chen, Iliya V. Karlin
- Mathematics and Computers in Simulation
- 2006

- S. Arcidiacono, S. Ansumali, Iliya V. Karlin, J. Mantzaras, K. B. Boulouchos
- Mathematics and Computers in Simulation
- 2006

A new kinetic model for binary mixtures and its Lattice Boltzman (LB) discretiza-tion is presented. In the hydrodynamic limit the model recovers the Navier-Stokes and the Stefan-Maxwell binary diffusion equations. The thermodynamic consistency is ensured by the defined non-negative entropy production within the domain of applicability of the model. The… (More)

In this paper, we review the construction of low-dimensional manifolds of reduced description for equations of chemical kinetics from the standpoint of the method of invariant manifold (MIM). MIM is based on a formulation of the condition of invariance as an equation, and its solution by Newton iterations. A review of existing alternative methods is… (More)

In this paper, we review the construction of low-dimensional manifolds of reduced description for equations of chemical kinetics from the standpoint of the method of invariant manifold (MIM). MIM is based on a formulation of the condition of invariance as an equation, and its solution by Newton iterations. A grid-based version of MIM is developed.… (More)

In the last decade, minimal kinetic models, and primarily the Lattice Boltmann equation, have met with significant success in the simulation of complex hydrodynamic phenomena, ranging from slow flows in grossly irregular geometries to fully developed turbulence, to flows with dynamic phase transitions. Besides their practical value as efficient… (More)