Details

Autor(en) / Beteiligte

• Li, Xipeng
• Zhang, Yun
• Wang, Xiaowei
• Ge, Wei

Titel

GPU-based numerical simulation of multi-phase flow in porous media using multiple-relaxation-time lattice Boltzmann method

Ist Teil von

• Chemical engineering science, 2013-10, Vol.102, p.209-219

Ort / Verlag

Elsevier Ltd

Erscheinungsjahr

2013

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• The lattice Boltzmann method (LBM) is often advocated as an effective simulation tool for multi-phase flow in porous media. In this paper, we extended the mainstream Rothman–Keller (R–K) multi-phase model with multi-relaxation-time (MRT) scheme by adding perturbation in the moment space and a diffusion process (except for two-phase flow) after the recoloring step. The former generates the interfacial tension, and the latter eliminates the over anti-diffusion effect of the recoloring step. The method was validated by numerical experiments on the Laplace's law and dynamics of spreading, and the drainage and imbibition processes of real cores were then simulated. The simulations were carried out on graphics processing units (GPUs) using Compute Unified Device Architecture (CUDA) and message passing interface (MPI), which was proven to be very efficient. •R–K model with MRT decoupled the interfacial tension and the viscosity.•Diffusion process eliminated the lattice pinning and fluctuations at phase interfaces.•Nearly 100× speedup with GPU compared to CPU was achieved.•Residual oil saturation is affected by both interfacial tension and solid wettability.