A Non-Fickian Mixing Model for Stratified Turbulent Flows

Abstract

The long term goal of this project is to develop a better understanding of oceanic processes in the range of 100 m to 10 km, in the so-called submesoscale range. In particular, it is important to explore and find out whether and what type of submesoscale instabilities exist, how they are connected to both larger scale and smaller scale motions, and to what extent they influence transport processes in the ocean. Another important objective of this project is to test how well subgrid-scale (SGS) models for large eddy simulations (LES) work in the presence of backward energy cascade that may be characteristic in submesoscale motions. Another long term objective of this effort would be to improve the predictive skill of the Navy numerical models for submesoscale transport in the ocean. My main objective has been to model upper ocean mixed layer instabilities, investigate their behavior and try to develop sampling strategies using synthetic drifters and tracers prior to the first LatMix cruise. In addition, I have put in a significant effort during the first LatMix cruise that took place in June 2011.

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Document Details

Document Type
Technical Report
Publication Date
Sep 30, 2011
Accession Number
ADA556932

Entities

People

  • Tamay M. Özgökmen

Organizations

  • Rosenstiel School of Marine, Atmospheric, and Earth Science

Tags

Communities of Interest

  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Atmospheric Sciences
  • Dyes
  • Flow
  • Flow Fields
  • Fluid Flow
  • High Pressure
  • Instability
  • Large Eddy Simulation
  • Layers
  • Measurement
  • Oceans
  • Particles
  • Potential Energy
  • Sampling
  • Simulations
  • Turbulent Flow
  • Turbulent Mixing

Readers

  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers