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- W3102145342 abstract "We present a 3-dimensional (3D) numerical solver of the linearized compressible Euler equations (3D GLASS -- GLobal Acoustic Solar Simulation), used to model acoustic oscillations throughout the solar interior. The governing equations are solved in conservation form on a fully global spherical mesh ($0 le phi le 2pi$, $0 le theta le pi$, $0 le r le R_{odot}$) over a background state generated by the standard Solar Model S. We implement an efficient pseudo-spectral computational method to calculate the contribution of the compressible material derivative dyad to internal velocity perturbations, computing oscillations over arbitrary 3D background velocity fields. This model offers a foundation for a forward-modeling approach, using helioseismology techniques to explore various regimes of internal mass flows. We demonstrate the efficacy of the numerical method presented in this paper by reproducing observed solar power spectra, showing rotational splitting due to solid body rotation, and applying local helioseismology techniques to measure travel times created by a simple model of single-cell meridional circulation." @default.
- W3102145342 created "2020-11-23" @default.
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- W3102145342 date "2020-11-05" @default.
- W3102145342 modified "2023-09-27" @default.
- W3102145342 title "3D GLASS -- Acoustic Solar Modeling of Background Flows" @default.
- W3102145342 hasPublicationYear "2020" @default.
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