David A. Velasco-Romero: Spectral-Difference Method for Astrophysical Fluid Dynamics
Channel: lawphysics
Date: 10/05/2023

Webinar 144

Speaker: David A. Velasco-Romero, Princeton University, USA

Host: Alejandro Cárdenas-Avendaño, Princeton University, USA

Abstract:
A key aspect in computational astrophysical fluid dynamics is the need to deliver higher and higher accuracy for longer and longer time integration. Modern architectures such as massively parallel computers or graphical processing units (GPU) can be leveraged to increase the spatial and time resolution of simulations. We present a new numerical scheme which combines the Spectral Difference (SD) method up to arbitrary high order with a-posteriori limiting. It delivers very accurate solutions in smooth regions of the flow, while capturing sharp discontinuities without spurious oscillations.

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