Colloquium October 20
Date: Friday October 20
Time: 16:00 to 17:00
Place: 455 McBryde (Commons Room)
Speaker: Vani Cheruvu of National Center for Atmospheric Research
Title: A Nodal High-Order Spectral Finite Volume Transport Model on the Cubed-Sphere
Abstract
Advection plays a fundamental role in atmospheric
dynamics. In many atmospheric transport problems, it is
essential to correctly calculate the (three-dimensional)
advective transport of atmospheric constituents over
the globe. High-order numerical methods offer the promise
of accurately capturing these advective processes
in atmospheric flows and have been shown to efficiently
scale to large numbers of processors.
The spectral finite volume (SFV) method was developed by
Wang for conservation laws and has been used by
Choi et al. for ocean modeling. Recently, we developed a
transport scheme based on a high-order
nodal SFV on cubed-sphere which relies on a flux-corrected
transport (FCT) scheme to enforce monotonicity.
The reconstruction
procedure which we developed avoids the (expensive)
calculation of the inverse of a matrix used by Choi et al.
In this talk, I will discuss global transport scheme
combined with FCT on the cubed-sphere geometry.
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