The lattice Boltzmann method (LBM) has emerged as an effective and innovative numerical method based on kinetic theory for computational fluid dynamics and acoustic wave propagation. The multiple-relaxation-time LBM (MRTLBM) is much more stable and flexible than the traditional Bhatnagar-Gross-Krook LBM (BGK-LBM) owing to its adjustable free relaxation parameters (FRPs) in the case of low kinematic shear viscosity (low-KSV). Here acoustic wave propagation is simulated by BGK-LBM and MRTLBM with different FRPs in the case of low-KSV to display the superior stability of MRT-LBM. Meanwhile, how the FRPs of MRT-LBM affect the seismic waveform and the numerical stability separately in the case of low-KSV are analyzed.

Presentation Date: Monday, October 12, 2020

Session Start Time: 1:50 PM

Presentation Time: 3:55 PM

Location: Poster Station 12

Presentation Type: Poster

Keywords:
reservoir characterization, simulation, multiple-relaxation-time lattice boltzmann model, mrt-lbm, stability analysis, stability, lattice boltzmann model, propagation, frp, bgk-lbm
Subjects:
Reservoir Characterization, Seismic processing and interpretation
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2020. Society of Exploration Geophysicists
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