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Modeling nonlinear ultrasound propagation in heterogeneous media with power law absorption using a k-space pseudospectral method

Treeby, Bradley; Jaros, Jiri; Rendell, Alistair; Cox, Benjamin


The simulation of nonlinear ultrasound propagation through tissue realistic media has a wide range of practical applications. However, this is a computationally difficult problem due to the large size of the computational domain compared to the acoustic wavelength. Here, the k-space pseudospectral method is used to reduce the number of grid points required per wavelength for accurate simulations. The model is based on coupled first-order acoustic equations valid for nonlinear wave propagation...[Show more]

CollectionsANU Research Publications
Date published: 2012
Type: Journal article
Source: Journal of the Acoustical Society of America
DOI: 10.1121/1.4712021


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