# High-fidelity Sound Propagation in a Varying 3D Atmosphere

@article{Rydin2018HighfidelitySP, title={High-fidelity Sound Propagation in a Varying 3D Atmosphere}, author={Ylva Rydin and Ken Mattsson and Jonatan Werpers}, journal={Journal of Scientific Computing}, year={2018}, volume={77}, pages={1278-1302} }

A stable and high-order accurate upwind finite difference discretization of the 3D linearized Euler equations is presented. The discretization allows point sources, a varying atmosphere and curved topography. The advective terms are discretized using recently published upwind summation-by-parts (SBP) operators and the boundary conditions are imposed using a penalty technique. The resulting discretization leads to an explicit ODE system. The accuracy and stability properties are verified for a…

## 6 Citations

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A provably stable and high-order accurate semi-discrete finite difference scheme modeling the shuttle movement of a seismic airgun is derived using the SBP-SAT method. The one dimensional airgun mo…

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Stable Symmetric Matrix Form Framework for the Elastic Wave Equation Combined with Perfectly Matched Layer and Discretized in the Curve Domain

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A semi-discrete approximation based on ADE CFS-MPML in which the curve domain is discretized using the upwind summation-by-parts (SBP) operators, and where the boundary conditions are enforced weakly using the simultaneous approximation terms (SAT).

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