A simple implementation of PML for second-order elastic wave equations
When modeling time-domain elastic wave propagation in an unbound space, the standard
perfectly matched layer (PML) is straightforward for the first-order partial differential …
perfectly matched layer (PML) is straightforward for the first-order partial differential …
Elastic full-wave field simulation in 3D tunnel space with the variable staggered-grid finite-difference method in cylindrical coordinates
Y Zheng, F Cheng, J Liu, Z Fan, B Han… - Journal of Applied …, 2023 - Elsevier
Tunnel advance detection technology is an important method for determining the structure of
complex geological bodies in front of the tunnel face. Among the tunnel advance detection …
complex geological bodies in front of the tunnel face. Among the tunnel advance detection …
Full-anisotropic poroelastic wave modeling: A discontinuous Galerkin algorithm with a generalized wave impedance
In the discontinuous Galerkin framework, a generalized anisotropic wave impedance is
proposed, to succinctly solve the Riemann problem for 3-D full-anisotropic poroelastic …
proposed, to succinctly solve the Riemann problem for 3-D full-anisotropic poroelastic …
3D tunnel space elastic reverse time migration in cylindrical coordinates using reconstructed time-domain wavefields
D Peng, F Cheng, J Liu, Y Zheng… - IEEE Transactions on …, 2024 - ieeexplore.ieee.org
Seismic advance detection is a method for detecting complex geological formations in a
tunnel face, which is crucial for the safe construction of tunnel projects. During the process of …
tunnel face, which is crucial for the safe construction of tunnel projects. During the process of …
Discontinuous Galerkin modeling of 3D arbitrary anisotropic Q
For wave propagation problems, conventional time-domain anelastic attenuation modeling
involves either Caputo fractional time derivatives for an exactly constant-Q model, thus …
involves either Caputo fractional time derivatives for an exactly constant-Q model, thus …
[HTML][HTML] Pre-stack elastic reverse time migration in tunnels based on cylindrical coordinates
Seismic forward-prospecting in tunnels is an important step to ensure excavation safety.
Nowadays, most advanced imaging techniques in seismic exploration involve calculating …
Nowadays, most advanced imaging techniques in seismic exploration involve calculating …
Incorporating full attenuation mechanisms of poroelastic media for realistic subsurface sensing
Porous materials are ubiquitous in the subsurface formations of the earth where acoustic
and seismic waves are used for remote sensing. However, it is not well understood how the …
and seismic waves are used for remote sensing. However, it is not well understood how the …
Frequency domain spectral element method for modelling poroelastic waves in 3-D anisotropic, heterogeneous and attenuative porous media
W Zhan, M Zhuang, QQ Liu, L Shi… - Geophysical Journal …, 2021 - academic.oup.com
Simulating poroelastic waves in large-scale 3-D problems having porous media coupled
with elastic solids and fluids is computationally challenging for traditional methods. It is well …
with elastic solids and fluids is computationally challenging for traditional methods. It is well …
Optimization of the periodic PML for SEM
A periodic perfectly matched layer (PML) is proposed for the spectral element method (SEM)
for the first time, which not only simplifies the recognition process of a PML domain, but also …
for the first time, which not only simplifies the recognition process of a PML domain, but also …
“洞察” 号能够完成火星内部结构探测的使命吗?
刘澜波 - 地球与行星物理论评, 2021 - sjdz.org.cn
本文聚焦于“洞察” 号(InSight) 的SEIS 项目, 介绍它的主要科研目标, 以及已有的初步探测与解释
成果. 作者试图就“洞察” 号能在什么程度上实现对火星内部结构探测的科研目标作出评论 …
成果. 作者试图就“洞察” 号能在什么程度上实现对火星内部结构探测的科研目标作出评论 …