Modeling Horizontal Coastal Flow Mixing: Assessing the Role of Viscous Contributions

Autores/as

  • Giovanna Grosso
  • Alessandra Piattella
  • Maurizio Brocchini

DOI:

https://doi.org/10.1685/

Resumen

Horizontal mixing of shallow coastal flows is studied with a specific focus on the role played by large-scale horizontal eddies (macrovortices). Description of macrovortex-induced mixing is given on the basis of numerical solutions of the Nonlinear Shallow Water Equation (NSWE) and sensitivity of the results on viscous-type dissipation is analyzed. Such analysis is the first step to determine a suitable framework for Horizontal Large Eddy Simulations (HLES) computations of coastal flows performed by means of depth-averaged NSWE. Statistics of mixing, rather than inspection of the velocity spectra, are used to assess the value of the chosen viscous closure. [DOI: 10.1685 / CSC06092] About DOI

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Publicado

2007-10-01

Número

Vol. 1 (2006)

Sección

Articles

Licencia

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