Computation of dynamic seismic responses to viscous fluid of digitized three-dimensional Berea sandstones with a coupled finite-difference method

2012 ◽  
Vol 132 (2) ◽  
pp. 630-640 ◽  
Author(s):  
Yang Zhang ◽  
M. Nafi Toksöz
Keyword(s):  
Finite Difference ◽  
Finite Difference Method ◽  
Viscous Fluid ◽  
Difference Method ◽  
Three Dimensional ◽  
Seismic Responses

Non-Paraxial Split-Step Semi-Vectorial Finite-Difference Method for Three-Dimensional Wide-Angle Beam Propagation

2010 ◽  
Vol 27 (1) ◽  
pp. 014201
Author(s):  
Cheng Hua ◽  
Zang Wei-Ping ◽  
Zhao Zi-Yu ◽  
Li Zu-Bin ◽  
Zhou Wen-Yuan ◽  
...  
Keyword(s):  
Finite Difference ◽  
Finite Difference Method ◽  
Difference Method ◽  
Three Dimensional ◽  
Beam Propagation ◽  
Wide Angle

Numerical Investigation on Unstable Oscillations of Two Circular Cylinders in Tandem Arrangement

2003 ◽  
Author(s):  
Yoshiaki Itoh ◽  
Ryutaro Himeno
Keyword(s):  
Finite Difference ◽  
Finite Difference Method ◽  
Numerical Investigation ◽  
Difference Method ◽  
Three Dimensional ◽  
Circular Cylinders ◽  
Damping Force ◽  
Negative Damping ◽  
Good Agreement ◽  
Three Dimensional Simulations

Three-dimensional simulations of incompressible and viscous flow around tandem circular cylinders at Re = 20000 in unstable oscillations can be carried out by means of finite difference method without any turbulence model. The numerical response behaviors are in good agreement with the previous experimental ones. The mechanism of negative damping force in vortex-induced oscillations and wake-galloping is investigated.

Stability Analysis of Main Structure for an Open-Cut Metro Station

2014 ◽  
Vol 522-524 ◽  
pp. 1693-1696
Author(s):  
Yan Hui Guo ◽  
Ke Peng Hou
Keyword(s):  
Stability Analysis ◽  
Finite Difference ◽  
Finite Difference Method ◽  
Difference Method ◽  
Three Dimensional ◽  
Geological Model ◽  
Metro Station ◽  
Main Structure ◽  
Geotechnical Mechanics ◽  
Safety Operation

Based on a metro station background of the line 3 west extension engineering of Kunming metro line co.LTD. On the basis of geological survey and indoor geotechnical mechanics experiment, the 3D geological model was established by three-dimensional finite difference method FLAC3D. Stability of main structure for the metro station was analyzed. The analysis results provides a reference for safety operation of the metro station.

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