English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Large-scale simulations of the wave equation in electromagnetism, seismology,and acoustics, can be solved efficiently by finite difference methods. Theaccuracy of these numerical solutions usually depends on the minimization ofdissipation and dispersion error using optimized schemes. However, theseoptimized schemes are often difficult to implement for more complexformulations of the wave equation. Here we present a model of the quadraticallynonlinear wave equation with multiple relaxations as a function of space thatcan model perfectly matched layers and is designed to be easily used withoptimized finite-difference stencils on a staggered grid. Solutions aredemonstrated in 2D and 3D for ultrasound imaging applications where the longpropagation lengths, heterogeneous media in the human body, large dynamicrange, and requirements for computational speed, demonstrate the utility of theproposed methods.

A fullwave model of the nonlinear wave equation with multiple  relaxations and relaxing perfectly matched layers for high-order numerical  finite-difference solutions