Zobrazeno 1 - 10
of 83
pro vyhledávání: '"Sofonea Victor"'
Autor:
Busuioc, Sergiu, Sofonea, Victor
Numerical solutions of the Enskog equation obtained employing a Finite-Difference Lattice Boltzmann (FDLB) and a Direct Simulation Monte Carlo (DSMC)-like particle method (PM) are systematically compared to determine the range of applicability of the
Externí odkaz:
http://arxiv.org/abs/2308.15407
Publikováno v:
Phys. Rev. E 109, 015305 2024
The liquid-vapor phase separation is investigated via lattice Boltzmann simulations in three dimensions. After expressing length and time scales in reduced physical units, we combined data from several large simulations (on $512^3$ nodes), with diffe
Externí odkaz:
http://arxiv.org/abs/2302.03382
Autor:
Cristea Artur, Sofonea Victor
Publikováno v:
Open Physics, Vol 2, Iss 2, Pp 382-396 (2004)
Externí odkaz:
https://doaj.org/article/8ddefcf0f1e848a79970e6b74c0b29bb
In this paper, we consider the capabilities of the Boltzmann equation with the Shakhov and ellipsoidal models for the collision term to capture the characteristics of rarefied gas flows. The benchmark is performed by comparing the results obtained us
Externí odkaz:
http://arxiv.org/abs/1909.11552
Autor:
Negro, Giuseppe, Busuioc, Sergiu, Ambrus, Victor E., Gonnella, Giuseppe, Lamura, Antonio, Sofonea, Victor
Publikováno v:
International Journal of Modern Physics C Vol. 30, No. 10, 1941005 (2019)
We present here a comparison between collision-streaming and finite-difference lattice Boltzmann (LB) models. This study provides a derivation of useful formulae which help one to properly compare the simulation results obtained with both LB models.
Externí odkaz:
http://arxiv.org/abs/1904.02471
In this paper, we employ the lattice Boltzmann method to solve the Boltzmann equation with the Shakhov model for the collision integral in the context of the 3D planar Couette flow. The half-range Gauss-Hermite quadrature is used to account for the w
Externí odkaz:
http://arxiv.org/abs/1810.07803
In the frame of the Boltzmann equation, wall-bounded flows of rarefied gases require the implementation of boundary conditions at the kinetic level. Such boundary conditions induce a discontinuity in the distribution function with respect to the comp
Externí odkaz:
http://arxiv.org/abs/1708.03249
We develop a two-dimensional Lattice Boltzmann model for liquid-vapour systems with variable temperature. Our model is based on a single particle distribution function expanded with respect to the full-range Hermite polynomials. In order to ensure th
Externí odkaz:
http://arxiv.org/abs/1702.01690
Autor:
Ambrus, Victor E., Sofonea, Victor
Publikováno v:
Phys. Rev. E 98, 063311 (2018)
The three-dimensional Couette flow between parallel plates is addressed using mixed lattice Boltzmann models which implement the half-range and the full-range Gauss-Hermite quadratures on the Cartesian axes perpendicular and parallel to the walls, re
Externí odkaz:
http://arxiv.org/abs/1702.01335
Publikováno v:
In Computers and Fluids 30 October 2020 211