Numerical Simulation of Collapsing Turbulent Wakes-Comparison of Turbulence Closures and Numerical Schemes

The collapse of a partially mixed region generated by a prescribed amount of turbulence deposited on a linearly stratified ambient ocean is studied numerically. Different turbulent closures such as first and second order are used to model the turbulent stresses. The resulting equations are solved nu...

Full description

Saved in:
Bibliographic Details
Main Authors: Warn-Varnas, A, Piacsek, S A, Hain, G, Block, J
Format: Report
Language:English
Subjects:
COLLAPSE
DENSITY
FINITE DIFFERENCE THEORY
Fluid Mechanics
INTERNAL WAVES
LPN-NRL-G01-11
MIXING
NUMERICAL ANALYSIS
OCEAN MODELS
OCEANS
PARTIAL DIFFERENTIAL EQUATIONS
Physical and Dynamic Oceanography
STRATIFICATION
STRESSES
TURBULENCE
TURBULENT FLOW
VELOCITY
WAKE
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The collapse of a partially mixed region generated by a prescribed amount of turbulence deposited on a linearly stratified ambient ocean is studied numerically. Different turbulent closures such as first and second order are used to model the turbulent stresses. The resulting equations are solved numerically in a finite-difference formalism of the primitive form of the equations in a box region several times the size of the mixed region. The resulting maximum observed mean field velocities, densities, and turbulent energies in the fluid are obtained and cross-compared for different closures and numerical methods.