The Structure of High Reynolds Number Turbulent Boundary Layers, Part A

Abstract

We provide a summary of our accomplishments under a three-year 'mini URI' program in collaboration with researchers at Yale and Princeton universities. Whereas the central theme of the program is high Reynolds number wall-bounded turbulence, studies at Penn State included (1) analysis of fundamental issues of scale interactions in high Reynolds number turbulence dynamics, (2) the use of the wavelet decomposition and generalized filtering techniques in describing the relationship between the Fourier-spectral description of scale and the physical-space description of structure, (3) direct numerical simulation of passive scalar sources in low Reynolds number turbulent boundary layers and analysis of scalar evolution in relationship to laboratory data, (4) the relationship between homogeneous turbulent shear flow and the inertial sublayer in high Reynolds number turbulent boundary layers, and (5) the development and application of sophisticated data analysis techniques which intimately combine graphical and quantitative analysis within a fully interactive 'Analytical Environment'. A brief summary of the accomplishments in each area of development is presented. Turbulence, Turbulent boundary layers, Shear flows.

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Document Details

Document Type
Technical Report
Publication Date
Feb 15, 1994
Accession Number
ADA278392

Entities

People

  • James G. Brasseur

Organizations

  • Pennsylvania State University

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Materials and Manufacturing Processes

DTIC Thesaurus Topics

  • Boundary Layer
  • Computer Programming
  • Data Analysis
  • Engineering
  • Flow
  • Flow Visualization
  • Fluid Dynamics
  • Fluid Mechanics
  • Mechanical Engineering
  • Physics Laboratories
  • Reynolds Number
  • Simulations
  • Three Dimensional
  • Turbulence
  • Turbulent Flow
  • Visualizations
  • Wavelet Transforms

Fields of Study

  • Physics

Readers

  • Fluid Mechanics and Fluid Dynamics.
  • Technical Research and Report Writing.

Technology Areas

  • Space