5 citations · 7 across the 2 of their papers we have counts for
7 papers
High order methods for acoustic scattering: Coupling Farfield Expansions ABC with Deferred-Correction methods
Vianey Villamizar, Dane Grundvig, Otilio Rojas +1
Arbitrary high order numerical methods for time-harmonic acoustic scattering problems originally defined on unbounded domains are constructed. This is done by coupling recently dev…
Solvability for Photoacoustic Imaging with Idealized Piezoelectric Sensors
Sebastian Acosta
Most reconstruction algorithms for photoacoustic imaging assume that the pressure field is measured by ultrasound sensors placed on a detection surface. However, such sensors do no…
Local on-surface radiation condition for multiple scattering of waves from convex obstacles
Sebastian Acosta
We propose a novel on-surface radiation condition to approximate the outgoing solution to the Helmholtz equation in the exterior of several impenetrable convex obstacles. Based on…
Well-posedness for Photoacoustic Tomography with Fabry-Perot Sensors
Sebastian Acosta
In the mathematical analysis of photoacoustic imaging, it is usually assumed that the acoustic pressure (Dirichlet data) is measured on a detection surface. However, actual ultraso…
Recovery of Pressure and Wave Speed for Photoacoustic Imaging under a Condition of Relative Uncertainty
Sebastian Acosta
In this paper, we study the photoacoustic tomography problem for which we seek to recover both the initial state of the pressure field and the wave speed of the medium from the kno…
A weight-adjusted discontinuous Galerkin method for wave propagation in coupled elastic-acoustic media
Kaihang Guo, Sebastian Acosta, Jesse Chan
This paper presents a high-order discontinuous Galerkin (DG) scheme for the simulation of wave propagation through coupled elastic-acoustic media. We use a first-order stress-veloc…