Zobrazeno 1 - 10
of 153
pro vyhledávání: '"Shan, Xiaowen"'
Autor:
Yan, Su, Shan, Xiaowen
Prediction of non-equilibrium flows is critical to space flight. In the present work we demonstrate that the recently developed spectral multiple-relaxation-time (SMRT) lattice Boltzmann (LB) model is theoretically equivalent to Grad's eigen-system [
Externí odkaz:
http://arxiv.org/abs/2401.11086
Autor:
Li, Zuoxu, Shan, Xiaowen
Body force modelling in lattice Boltzmann method (LBM) has been extensively studied in the incompressible limit but rarely discussed for thermal compressible flows. Here we present a systematic approach of incorporating body force in LBM which is val
Externí odkaz:
http://arxiv.org/abs/2302.04741
Autor:
Lulli, Matteo, Biferale, Luca, Falcucci, Giacomo, Sbragaglia, Mauro, Yang, Dong, Shan, Xiaowen
We quantitatively characterize the metastability in a multi-phase lattice Boltzmann model. The structure factor of density fluctuations is theoretically obtained and numerically verified to a high precision, for all simulated wave-vectors and reduced
Externí odkaz:
http://arxiv.org/abs/2212.07848
We present an a priori derivation of the force scheme for lattice Boltzmann method based on kinetic theoretical formulation. We show that the discrete lattice effect, previously eliminated a posteriori in BGK collision model, is due to first-order sp
Externí odkaz:
http://arxiv.org/abs/2212.07494
In this paper we analyze the curvature corrections to the surface tension in the context of the Shan-Chen (SC) multi-component Lattice Boltzmann method (LBM). We demonstrate that the same techniques recently applied in the context of the Shan-Chen mu
Externí odkaz:
http://arxiv.org/abs/2112.02574
We follow a new pathway to the definition of the Stochastic Quantization (SQ), first proposed by Parisi and Wu, of the action functional yielding the Einstein equations. Hinging on the functional similarities between the Ricci-Flow equation and the S
Externí odkaz:
http://arxiv.org/abs/2112.01490
We demonstrate that the multi-phase Shan-Chen lattice Boltzmann method (LBM) yields a curvature dependent surface tension $\sigma$ as computed from three-dimensional hydrostatic droplets/bubbles simulations. Such curvature dependence is routinely cha
Externí odkaz:
http://arxiv.org/abs/2105.08772
The Bhatnagar-Gross-Krook (BGK) single-relaxation-time collision model for the Boltzmann equation serves as the foundation of the lattice BGK (LBGK) method developed in recent years. The description of the collision as a uniform relaxation process of
Externí odkaz:
http://arxiv.org/abs/2102.00817
Autor:
Li, Xuhui, Shan, Xiaowen
Publikováno v:
Phys. Rev. E 103, 043309 (2021)
In the Hermite-expansion-based multiple-relaxation-time lattice Boltzmann (LB) model [Shan & Chen, Int. J. Mod. Phys. C, 18, 635, (2007)], a separate relaxation time is assigned to each of the tensorial moments of the collision term. Here we point ou
Externí odkaz:
http://arxiv.org/abs/2010.01476
Publikováno v:
Phys. Rev. E 103, 063309 (2021)
We systematically analyze the tensorial structure of the lattice pressure tensors for a class of multi-phase lattice Boltzmann models (LBM) with multi-range interactions. Due to lattice discrete effects, we show that the built-in isotropy properties
Externí odkaz:
http://arxiv.org/abs/2009.12522