PMDL is a simple variant of perfectly matched layers (PML) that is also equivalent to rational approximation-based local ABCs (rational ABCs); it inherits the straightforward approximation properties of rational ABCs along with the versatility of PML.
The local ABC used here is the perfectly matched discrete layer (PMDL) which is a simple variant of perfectly matched layers (PMLs) that is also equivalent to rational approximation-based local ABCs (rational ABCs); it inherits the straightforward approximation properties of rational ABCs along with the versatility of PML.
Numerical results for wave transmission through a rectangular connector with linearly tapered thickness and constant width are obtained in a straightforward manner without approximation errors and at a low computational cost, irrespective of frequency.
The generalized framework gives a straightforward means of posing many known approximations to the first derivative as SBP operators; several are surveyed, such as discontinuous Galerkin discretizations based on the Legendre Gauss quadrature points, and shown to be SBP operators.
A peculiar definition of the saw-tooth approximation of the softening branch is presented, which allows for a straightforward discretization of the softening branch in the case of snap-back on a constitutive level.
Before the eviction, the UN Park was less a shanty town than an approximation of a suburb.
She does a better impersonation of a person than we do an approximation of a dog.
The hip-hop connection became straightforward later in the show, when Jackman broke into a rap approximation of Harold Hill's patter from Meredith Willson's 1957 Broadway classic, "The Music Man".
Overhead, a papier-mâché approximation of a whale skeleton hung from the ceiling.
Severe, relentless, devoid of ambient comfort, it was an eerie approximation of an unrecoverable past.
Of course, this might well be a faithful approximation of the real event it describes.
