Investigation of the Role of Transient Growth in Roughness-Induced Transition

Abstract

A number of topics relating to transient growth are addressed. These encompass its roots in stability theory, computation of optimal transient growth characteristics for both parallel and non-parallel flow formulations, and the application of this information to multimode decomposition and roughness-induced transition. All of these are based on the spatial transient growth theory. For the important case of nosetip transition, the resulting transition relations reproduce the trends of the Reda and PANT data and carefully account for the separate roles of roughness and surface temperature level on transition behavior.

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Document Details

Document Type
Technical Report
Publication Date
Mar 31, 2008
Accession Number
ADA483941

Entities

People

  • Edward B. White
  • Eli Reshotko

Organizations

  • Texas Engineering Experiment Station

Tags

Communities of Interest

  • Energy and Power Technologies
  • Materials and Manufacturing Processes
  • Space

DTIC Thesaurus Topics

  • Air Force
  • Applied Mathematics
  • Blunt Bodies
  • Bodies
  • Boundaries
  • Boundary Layer
  • Boundary Layer Flow
  • Boundary Layer Transition
  • Contracts
  • Engineering
  • Flow
  • Layers
  • Numerical Analysis
  • Roughness
  • Surface Temperature
  • Turbulent Flow
  • Universities

Fields of Study

  • Physics

Readers

  • Atmospheric Science / Meteorology, specifically Wind Wave Turbulence.
  • Materials Science (Mechanical Engineering).
  • Systems Analysis and Design