DATE:

Friday, July 30, 2021

TIME:

3:30 PM

LOCATION:

Virtual Zoom Conference

SPEAKER:

Manuel Valera, PhD Candidate, Computational Science, San Diego State University

ABSTRACT:

Nonlinear internal waves are an ubiquitous and fundamental aspect of the coastal ecosystem understanding, however they rely on extreme geographical conditions and precise dimensional equilibrium to be captured accurately. The General Curvilinear Coastal Ocean Model (GCCOM) was validated, serial and parallel versions, for a set of experiments showcasing stratified and non-hydrostatic flow phenomena, but 3D curvilinear capability have proven to be elusive. We apply cutting-edge numerical methods to improve upon the previously validated GCCOM, elevating it to field-scale capability. This reformulation of the GCCOM equations uses novel 3D curvilinear mimetic operators, a buoyancy body force, as well as the development of mimetic upwind and gradient-based momentum equations, brand new to this thesis. This model represents the most complete implementation of the 3D curvilinear mimetic operators utilizing the MOLE library, or any other mimetic applications in literature to date, and results show it to be more physically accurate (.27% vs 1%) and better energy conserving than the validated GCCOM and other similar models, as well as permitting the use of 3D curvilinear grids for arbitrary geometries.

HOST:

Abraham Flores and the SDSU SIAM Student Chapter

VIDEO: