Coherent-Vorticity-Preserving (CvP) Large-Eddy Simulations (LES) of Very-High-Reynolds-Number Vortex Dynamics

Abstract

The goals of the current proposal are to unravel the physics of very-high-Reynolds-number vortex dynamics by exploiting a new computational technique called coherent-vorticity-preserving (CvP) large-eddy simulation (LES). The CvP-LES technique relies on a very fast evaluation of the local state of spectral broadening based on the application of Kolmogorovs K41 Theory to the filtered enstrophy field. Contrary to popular dynamic models, it only requires one additional filtering operation and very minimal memory overhead, requiring the storage of one extra three-dimensional field.

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Document Details

Document Type
Technical Report
Publication Date
Sep 09, 2021
Accession Number
AD1206604

Entities

People

  • Carlo Scalo
  • Jean-baptiste Chapelier
  • Nicola M Lucarelli
  • Xinran Zhao

Organizations

  • Purdue University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Sensors
  • Weapons Technologies

DTIC Thesaurus Topics

  • Boundary Layer
  • Computational Fluid Dynamics
  • Energy Transfer
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Large Eddy Simulation
  • Mechanical Engineering
  • Mechanical Properties
  • Mechanics
  • Numerical Analysis
  • Reynolds Number
  • Standing Waves
  • Three Dimensional
  • Topology
  • Turbulent Flow
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Parallel and Distributed Computing.
  • Political Violence and Terrorism Studies.