2011/01/01 by Omer San, Anne Staples, Anne E. Staples +2 · 73 citations
Earth and Planetary Sciences · Engineering · Mathematics · Physics and Astronomy · #Algorithm #Applied mathematics #Barotropic fluid #Climatology #Computer science #Data assimilation #Deconvolution #Detached eddy simulation #Fluid Dynamics and Turbulent Flows #Geology #Large eddy simulation #Mathematics #Mechanics #Meteorological Phenomena and Simulations #Meteorology #Ocean gyre #Oceanographic and Atmospheric Processes #Physics #Reynolds-averaged Navier–Stokes equations #Turbulence #Vortex #Vorticity #physics.ao-ph #physics.flu-dyn
paper · pdf · doi:10.1016/j.ocemod.2011.08.003
published in Ocean Modelling 40(2), 120-132 (Elsevier BV)
openalex publication_date 2011/01/01 · arxiv created 2011/08/05 · arxiv updated 2013/10/08 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
This paper puts forth a new large eddy simulation closure modeling strategy for two-dimensional turbulent geophysical flows. This closure modeling approach utilizes approximate deconvolution, which is based solely on mathematical approximations and does not employ additional phenomenological arguments to the model. The new approximate deconvolution model is tested in the numerical simulation of the wind-driven circulation in a shallow ocean basin, a standard prototype of more realistic ocean dynamics. The model employs the barotropic vorticity equation driven by a symmetric double-gyre wind forcing, which yields a four-gyre circulation in the time mean. The approximate deconvolution model yields the correct four-gyre circulation structure predicted by a direct numerical simulation, on a coarser mesh but at a fraction of the computational cost. This first step in the numerical assessment of the new model shows that approximate deconvolution could represent a viable tool for under-resolved computations in the large eddy simulation of more realistic turbulent geophysical flows.