Global Modal and Non Modal Instability Analyses of Shock Induced Separation Bubbles

Abstract

Following an in-depth literature survey, work in this grant was performed along five paths: (i) two-dimensional direct numerical simulations which delivered the steady laminar base flows analyzed, (ii) analytical generation of meshes on which accurate instability analysis results could be obtained, (iii) development of LiGHT (Linear instability for Global, Hypersonic Transition), a massively parallel large eigenvalue and singular value problem solver used to (iv) perform modal and non-modal, 2- and 3D global linear instability analyses and (v) derivation and programming of the interactive boundary layer / triple-deck equations for base flow and instability analysis of supersonic flows.

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Document Details

Document Type
Technical Report
Publication Date
May 15, 2020
Accession Number
AD1106347

Entities

People

  • Vassilios Theofilis

Tags

Communities of Interest

  • Energy and Power Technologies
  • Space

DTIC Thesaurus Topics

  • Boundary Layer
  • Boundary Layer Flow
  • Computational Fluid Dynamics
  • Computational Science
  • Flow Fields
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Flow
  • Fluid Mechanics
  • Geometry
  • Heat Transfer
  • Hydrodynamics
  • Jet Propulsion
  • Mechanical Properties
  • Shock Waves
  • Turbulent Flow
  • Turbulent Mixing

Fields of Study

  • Physics

Readers

  • Computational Fluid Dynamics (CFD)
  • Control Systems Engineering.
  • Fluid Mechanics and Fluid Dynamics.

Technology Areas

  • Hypersonics
  • Hypersonics - Hypersonic Boundary Layers