Rough-Wall Turbulent Boundary Layers

Abstract

The objective of this project is to improve our fundamental knowledge of turbulent flows over rough surfaces. Specifically, we hope to investigate the manner in which roughness affects the near-wall drag-producing turbulent structures, and to what extent surface roughness affects the outer part of rough-wall boundary layers. Ultimately we hope to use this knowledge to propose control strategies to reduce momentum loss in rough-wall boundary layers.

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Document Details

Document Type
Technical Report
Publication Date
Jul 30, 2004
Accession Number
ADA426193

Entities

People

  • John J Kim

Organizations

  • University of California, Los Angeles

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies
  • Ground and Sea Platforms

DTIC Thesaurus Topics

  • Boundaries
  • Boundary Layer
  • Channel Flow
  • Engineering
  • Fluid Mechanics
  • Layers
  • Mechanics
  • Order Statistics
  • Reynolds Number
  • Roughness
  • Statistical Analysis
  • Surface Properties
  • Surface Roughness
  • Three Dimensional
  • Turbulent Boundary Layer
  • Turbulent Flow
  • Two Dimensional

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers
  • Public Financial Management and Budgeting