Viscous absorbing boundary of the multiple-relaxation-time lattice Boltzmann method

被引：0
|
作者：
Jiang C.-T. [1 ,2 ]
Zhou H. [1 ,2 ]
Xia M. [3 ,4 ,5 ]
Tang J.-X. [1 ,2 ]
Wang Y. [6 ,7 ]
机构：
[1] State Key Laboratory of Petroleum Resources and Prospecting, China University of Petroleum (Beijing), Beijing
[2] CNPC Key Laboratory of Geophysical Exploration, China University of Petroleum (Beijing), Beijing
[3] Institute of Geology and Geophysics, Chinese Academy of Sciences, Beijing
[4] Innovation Academy for Earth Science, Chinese Academy of Sciences, Beijing
[5] Key Laboratory of Petroleum Resources Research, Chinese Academy of Sciences, Beijing
[6] Beijing Institute of Aerospace Control Devices, Beijing
[7] Beijing Engineering Research Center of Optical Fiber Sensing System, Beijing
来源：
Shiyou Diqiu Wuli Kantan/Oil Geophysical Prospecting | 2021年 / 56卷 / 05期
关键词：
Attenuation parameters; Combinatorial optimization; Multiple relaxation parameters; Multiple-relaxation-time lattice Boltzmann method (MRT-LBM); Viscous absorbing boundary; Wave field simulation;
D O I：
10.13810/j.cnki.issn.1000-7210.2021.05.010
中图分类号：
学科分类号：
摘要：
When the geometric structure of the medium is complicated or there are strong physical discontinuities inside, the calculation results by traditional forward simulation methods of seismic waves are often difficult to meet the requirements of actual fine calculation for the wave field. The multiple-relaxation-time lattice Boltzmann method (MRT-LBM) is an emerging approach for numerical simulation, with good stability, high calculation accuracy, and flexible boundary processing. Aiming at the artificial truncated boundary faced by MRT-LBM numerical simulation, a viscous absorbing boundary scheme based on multiple relaxation parameters was proposed. Since the suppression effect of the boundary reflection was very sensitive to the attenuation parameters, massive numerical simulation experiments were conducted to determine the optimal parameter combination, and the absorbing boundary conditions with strong applicability were obtained. The absorbing boundary conditions were of a simple algorithm, with strong scalability. Finally, a uniform model and a simple heterogeneous model were built to verify the absorption effect, and a complex BP model was used to verify the applicability. © 2021, Editorial Department OIL GEOPHYSICAL PROSPECTING. All right reserved.
引用
收藏
页码：1030 / 1038
页数：8
相关论文
共 23 条
  • [1] SA Liming, YANG Wuyang, YAO Fengchang, Et al., Review and prospect of seismic inversion technology, Oil Geophysical Prospecting, 50, 1, pp. 184-202, (2015)
  • [2] LIU Zhangju, TONG Siyou, FANG Yunfeng, Et al., Full elastic waveform inversion in Laplace-Fourier domain based on time domain weighting, Oil Geophysical Prospecting, 56, 2, pp. 302-312, (2021)
  • [3] WANG Huazhong, Key problem analysis in seismic exploration based on wide-azimuth, high-density, and broadband seismic data, Geophysical Prospecting for Petroleum, 58, 3, pp. 313-324, (2019)
  • [4] CHEN Hanming, WANG Yilin, ZHOU Hui, A novel constant fractional-order Laplacians viscoacoustic wave equation and its numerical simulation method, Oil Geophysical Prospecting, 55, 2, pp. 302-310, (2020)
  • [5] Kruger T, Kusumaatmaja H, Kuzmin A, Et al., The lattice Boltzmann method, Springer International Publishing, 10, 978-3, pp. 4-15, (2017)
  • [6] Xu H, Sagaut P., Optimal low-dispersion low-dissipation LBM schemes for computational aeroacoustics, Journal of Computational Physics, 230, 13, pp. 5353-5382, (2011)
  • [7] He X, Doolen G D., Thermodynamic foundations of kinetic theory and lattice Boltzmann models for multiphase flows, Journal of Statistical Physics, 107, 1-2, pp. 309-328, (2002)
  • [8] Xia M, Wang S, Zhou H, Et al., Modelling viscoacoustic wave propagation with the lattice Boltzmann me-thod, Scientific Reports, 7, 1, pp. 1-9, (2017)
  • [9] McNamara G R, Zanetti G., Use of the Boltzmann equation to simulate lattice-gas automata, Physical Review Letters, 61, 20, (1988)
  • [10] YAO Yao, Forward seismic modeling by cellular automaton method, Oil Geophysical Prospecting, 30, 2, pp. 216-222, (1995)
123