Optimal Numerical Schemes for Time Accurate Compressible Large Eddy Simulations: Comparison of Artificial Dissipation and Filtering Schemes

Abstract

Objectives: Goal: Damp high frequency errors while preserving low wave content (i.e. low-pass response). (1) Compare damping character of Artificial Dissipation and Filtering. (2) formulate filter as an equivalent Artificial Dissipation scheme-- consequence of filter damping for stiff problems. (3) insight on achieving ideal low-pass response for general problems.

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Document Details

Document Type
Technical Report
Publication Date
Nov 01, 2014
Accession Number
ADA618193

Entities

People

  • Ann Karagozian
  • Ayaboe Edoh
  • Charles Merkle
  • Venke Sankaran

Organizations

  • Air Force Research Laboratory

Tags

Communities of Interest

  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Abstracts
  • Air Force
  • Air Force Research Laboratories
  • Amplification
  • Compressible Flow
  • Dissipation
  • Energy
  • Equations
  • Filters
  • Filtration
  • Flow
  • Fluid Dynamics
  • Growth Factors
  • Incompressible Flow
  • Kinetic Energy
  • Large Eddy Simulation
  • Military Research

Readers

  • Approximation Theory.
  • Computational Fluid Dynamics (CFD)
  • Plasma Physics / Magnetohydrodynamics