The double absorbing boundary method for the Helmholtz equation
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DOI: 10.1016/j.apnum.2021.05.029
Abstract: Abstract The Double Absorbing Boundary (DAB) is a recently proposed absorbing layer used to truncate an unbounded domain with high-order accuracy. While it was originally designed for time-dependent acoustics and elastodynamics, here the DAB construction… read more here.
Keywords: double absorbing; method helmholtz; helmholtz equation; boundary method ... See more keywords
Performance and stability of the double absorbing boundary method for acoustic-wave propagation
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DOI: 10.1190/geo2018-0161.1
Abstract: The double absorbing boundary (DAB) is a novel extension to the family of high-order absorbing boundary condition operators. It uses auxiliary variables in a boundary layer to set up cancellation waves that suppress wavefield energy… read more here.
Keywords: double absorbing; order; stability; layer ... See more keywords