Lagrangian Turbulence Near Walls: Structures and Mixing in Admissible Model Flows

Abstract

The general objective of work during this period was to bridge the gap between modern ideas from dynamical systems and chaos and more traditional approaches to turbulence. In order to reach this objective we conducted theoretical and computational work on two systems: (i) a perturbed Kelvin cat eyes flow, and (ii) prototype solutions of the Navier-Stokes equations near solid walls. The main results obtained are two-fold: (a) we have been able to produce flows capable of producing complex distributions of vorticity, and (b) we have been able to construct flow fields, based on solutions of the Navier Stokes equations, which are capable of displaying both Eulerian and Lagrangian turbulence.

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Document Details

Document Type
Technical Report
Publication Date
May 08, 1987
Accession Number
ADA208466

Entities

People

  • J. M. Ottino

Organizations

  • University of Massachusetts Amherst

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Classification
  • Computational Fluid Dynamics
  • Equations
  • Flow
  • Fluid Dynamics
  • Fluid Mechanics
  • Massachusetts
  • Models
  • Navier Stokes Equations
  • Notation
  • Physics Laboratories
  • Reynolds Number
  • Security
  • Stratified Fluids
  • Three Dimensional
  • Turbulence
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Quantum spin resonance or Electron Paramagnetic Resonance spectroscopy.
  • Systems Analysis and Design