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Questions related from Bo Qiang
Hi, I am trying to use Chebyshev pseudospectral method to simulate 3D wave propagation problems. The solver works but is very unstable. I applied mapping functions to make the boundary mesh grid...
24 February 2015 891 4 View
Hi, I am doing forward wave simulation in 3D space. One of the problems is that since the Poisson's ratio is close to 0.5, the compression wave speed is much faster than that of the shear wave....
12 February 2015 650 2 View
It seems like leapfrog is defined for the 2nd order PDE wave equation. For a 1st order formulation like the velocity-stress formulation, is there a way to use the leapfrog integration? The reason...
08 February 2015 5,028 3 View
I am trying to solve 3D wave equation expressed by stress-velocity formulation with Chebyshev spectral method. In the time domain, I am currently using RK4 explicit scheme but it is really slow....
01 August 2014 5,835 2 View
I am learning Lloyd N. Trefethen's book "Spectral Methods in Matlab". I am very impressed by the precision of chebyshev spectral method can achieve. I am working on simulating wave propagation...
07 May 2014 7,100 4 View