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Monday, May 11, 2020 | History

3 edition of Characterization of ice roughness from simulated icing encounters found in the catalog.

Characterization of ice roughness from simulated icing encounters

David N. Anderson

Characterization of ice roughness from simulated icing encounters

by David N. Anderson

  • 108 Want to read
  • 39 Currently reading

Published by National Aeronautics and Space Administration, National Technical Information Service, distributor in [Washington, DC], [Springfield, Va .
Written in English

    Subjects:
  • Ice formation.,
  • Aircraft icing.,
  • Surface roughness.,
  • Size (Dimensions),
  • Simulation.

  • Edition Notes

    StatementDavid N. Anderson and J. Shin.
    SeriesNASA technical memorandum -- 107400
    ContributionsShin, J., United States. National Aeronautics and Space Administration.
    The Physical Object
    Pagination1 v.
    ID Numbers
    Open LibraryOL17125121M

    The anti-icing property of the as-prepared SHP surface was investigated in an artificial climate chamber. The details of the artificial climate chamber can be found in references,. In this paper, “glaze ice” was simulated and the anti-icing property of the as-prepared SHP surface was investigated in the artificial climate by: if roughness features scale with model size or with liquid-water content when appropriate scaling methods are used. NACA airfoils with chords of , and cm were tested with glaze-ice conditions for icing times from 14 – sec. The ice roughness characteristics were recorded photographically for later analysis.

    [6] In this paper, sea ice thickness, roughness and ice motion data collected during the field study in Amundsen Gulf region are described. The data are compared qualitatively with Radarsat SAR (synthetic aperture radar) and Envisat ASAR (advanced SAR) satellite imagery since radar backscatter is a function of both ice type (or level ice thickness) and surface roughness. Roughness, age and drift trajectories of sea ice in large-scale simulations and their use in model verifications, Annals of Glaciol in press Google Scholar Hibler, W.D. A dynamic-thermodynamic sea ice model, J. Phys. Oceanogr., 9, – CrossRef Google ScholarAuthor: Nadja Steiner, Markus Harder, Peter Lemke. Convective Heat Transfer from Realistic Ice Accretion Roughness. Ice accretion effects are mitigated during aircraft design using computer codes such as LEWICE. The characterization of convective heat transfer from surfaces with ice roughness is a significant area for improvement of these codes.

      Purchase Development of Methods for Characterisation of Roughness in Three Dimensions - 1st Edition. Print Book & E-Book. ISBN , Book Edition: 1. RIME ICE “Cold" cloud temps. M0*C to *C) Small droplets (12p typ.) GLAZE ICE “Warm" cloud temps. (0 # C to *C) Large droplets (20p typ.) Figure 1. Typical "rime" and "glaze" ice shapes. When all of the impinging droplets freeze on impact with the accreting surface the ice accretion is character ized as rime ice. Numerical investigation of roughness effects in aircraft icing calculations by Brian Daniel Matheis A dissertation submitted to the graduate faculty in partial fulfillment of the requirements for the degree of DOCTOR OF PHILOSOPHY Major: Aerospace Engineering Program of Study Committee: Alric Rothmayer, Major Professor Fred L. Haan Jr. Tom I.-P.


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Characterization of ice roughness from simulated icing encounters by David N. Anderson Download PDF EPUB FB2

SyntaxTextGen not activatedThe measured high drag rates and increased stall speeds in these rare icing conditions were pdf to the rapid development of small, rough ice elements in the 5%–15% of chord on the negative pressure or “lift” side of an airfoil.

These roughness elements are a Cited by: 3.The aim of this study was to systematically study the ice adhesion strength on various surfaces download pdf de-coupling the effects of surface roughness and surface energy on ice adhesion strength.

2. Experimental details Sample preparation. The substrate used in this study is AA Al of dimension mm × mm × by:   A m-long, m-wide rectangular channel ebook constructed, and a simulated ice cover was installed on each side wall.

A set of four experiments was designed to quantify the effects of channel-bed and border-ice roughness on the flow characteristics within a partially covered rectangular channel.