rdf-syntax-grammar
mods:
  schema location: http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
  title info:
    non sort: An
    title: examination of configurations for using infrared to measure boundary layer transition
  name:
    name part: Freels, Justin Reed.
    role:
      role term: creator
  name:
    name part: White, Edward B.
    role:
      role term: thesis advisor.
  type of resource: text
  genre: bibliography
  origin info:
    place:
      place term: txu
    date issued: 2012
    issuance: monographic
  language:
    language term: eng
  physical description:
    form: remote
    extent: 1 online resource.
  abstract: Infrared transition location estimates can be fast and useful measurements in wind tunnel and flight tests. Because turbulent boundary layers have a much higher rate of convective heat transfer than laminar boundary layers, a difference in surface temperature can be observed between turbulent and laminar regions of an airfoil at a different temperature than the free stream air temperature. Various implementations of this technique are examined in a wind tunnel. These include using a heat lamp as an external source and circulating fluid inside of the airfoil. Furthermore, ABS plastic and aluminum airfoils are tested with and without coatings such as black paint and surface wraps. The results show that thermal conduction within the model and surface reflections are the driving issues in designing an IR system for detecting transition. Aluminum has a high thermal diffusivity so is a poor choice for this method. However, its performance can be improved using an insulating layer. Internal fluid circulation was far more successful than the heat lamp because it eliminates the reflected IR due to the heat lamp. However, using smooth surface wraps can mitigate reflection issues caused by the heat lamps by reducing the scatter within the reflection, producing an IR image with fewer contaminating reflections.
  note: by Justin Reed Freels.
  note: "Major Subject: Aerospace Engineering"
  note: Electronic resource.
  note: Master of Science Texas A&M University 2012 http://hdl.handle.net/1969.1/ETD-TAMU-2012-08-11476
  note: Includes bibliographical references.
  note: Text (Thesis)
  subject:
    topic: Major Aerospace Engineering
  subject:
    topic: IR thermography
  subject:
    topic: wind tunnel testing
  subject:
    topic: experimental aerodynamics
  subject:
    topic: infrared thermography
  subject:
    topic: boundary layer transition
  subject:
    topic: turbulent boundary layer
  subject:
    topic: laminar-to-turbulent transition
  subject:
    topic: aerodynamics
  identifier: http://hdl.handle.net/1969.1/ETD-TAMU-2012-08-11476
  record info:
    record content source: TXA
    record creation date: 121121
    record change date: 20150922145318.0
    record identifier: in00002785434