Turbulent Boundary Layers Overlying Complex Roughness: Advancing the Predictive Capabilities of Large-Eddy Simulation via Coordinated Experiments and Simulations

Abstract

This grant supported the purchase of volumetric particle-image velocimetry (PIV) equipment that provides data acquisition in the kilohertz (kHz) range over volumetric fields of view for time resolved studies of the dynamics of complex turbulent flows, particularly on-going studies of realistic roughness effects in wall turbulence (AFOSR core grant FA9550-14-1-0101). While existing PIV equipment in the PI's lab provides extremely high spatial resolution for measurements of moderate Reynolds number turbulent flows, it does not afford similar resolution in the temporal domain, nor the ability to measure 3D aspects of these flow fields. Therefore, the equipment acquired with this funding was specifically selected to expand our capabilities in both of these domains to provide a step-change in our ability to interrogate complex, and inherently 3D, turbulent flows of relevance to a range of DOD applications.

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Document Details

Document Type
Technical Report
Publication Date
Mar 19, 2019
Accession Number
AD1085844

Entities

People

  • Carlos Pantano-rubino

Organizations

  • University of Illinois Urbana–Champaign

Tags

Communities of Interest

  • Air Platforms
  • Energy and Power Technologies

DTIC Thesaurus Topics

  • Acquisition
  • Air Force Research Laboratories
  • Boundaries
  • Boundary Layer
  • Data Acquisition
  • Department Of Defense
  • Flow
  • Flow Fields
  • Hot Wire
  • Large Eddy Simulation
  • Layers
  • Modulation
  • Scientific Research
  • Simulations
  • Test Facilities
  • Turbulent Boundary Layer
  • Turbulent Flow

Fields of Study

  • Physics

Readers

  • Fluid Dynamics.
  • Ocean-Atmosphere Mesoscale Modeling, Data Assimilation, and Flux Boundary Layers
  • Research Science/Academic Research