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Thursday, May 14, 2020 | History

2 edition of Effect of in-flight ice accretion on the performance of a multi-element airfoil found in the catalog.

Effect of in-flight ice accretion on the performance of a multi-element airfoil

Effect of in-flight ice accretion on the performance of a multi-element airfoil

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

    Subjects:
  • Airfoils.,
  • Aircraft icing.,
  • Reynolds number.,
  • Wind tunnel tests.,
  • Angle of attack.,
  • Lift.

  • Edition Notes

    Other titlesEffect of in flight ice accretion on the performance of a multi-element airfoil
    StatementAbdollah Khodadoust ... [et al.].
    SeriesNASA-TM -- 112174, NASA technical memorandum -- 112174..
    ContributionsKhodadoust, Abdollah., United States. National Aeronautics and Space Administration.
    The Physical Object
    FormatMicroform
    Pagination1 v.
    ID Numbers
    Open LibraryOL17125369M

    Pages missing from book. Pages missing from book. REAL FLOWS OVER AEROFOILS AND WINGS I ICAS Multielement Aerofoils with Moving Surface Boundary-Layer Control: Wind Tunnel, Numerical and Flow Visualization Studies Modi, . Intro - SciTech 5–9 JANUARY The Largest Event for Aerospace Research, Development, and Technology FINAL PROGRAM #aiaaSciTech KISSIMMEE, FL WHAT’S IMPOSSIBLE TODAY WON’T BE TOMORROW. AT LOCKHEED MARTIN, WE’RE ENGINEERING A BETTER TOMORROW.

    the understanding of the behavior of an airfoil on which ice accretion is obtained by exposing the airfoil itself to a specific atmospheric condition for a given interval of time. It is evident, however, that, all the other icing parameters being constant, the iced zone is subject to . Final Program - The American Institute of Aeronautics and 43rd AIAA Fluid Dynamics Conference and Exhibit 44th AIAA Plasmadynamics and Lasers Conference 44th AIAA Thermophysics Conference 31st AIAA Applied Aerodynamics Conference 21st AIAA Computational Fluid Dynamics Conference 5th AIAA Atmospheric and Space Environments Conference AIAA Ground Testing Conference FINAL .

    A flight-tunnel comparison would not necessarily show the effects just discussed. The level of external disturbances is likely to be less in flight than in most tunnels - this would result in the transition position being further aft in flight and this would tend to offset the apparent effect of 9 4 Rotational soeed in ~ m o e l l e r testing (b).   Additional Improvements to the NASA Lewis Ice Accretion Code LEWICE. NASA Technical Reports Server (NTRS) Wright, William B.; Bidwell, Colin S. Due to .


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Effect of in-flight ice accretion on the performance of a multi-element airfoil Download PDF EPUB FB2

System in the presence of potential in-flight ice accretions. The lift performance of the multi-element airfoil with ice for RN 9 million is shown in Fig. The presence of smooth ice accretion on the multi-element airfoil surfaces caused a small drop in with little change in as+J However, addition of roughness to the ice surfaces caused aFile Size: 6MB.

The effects of potential in-flight ice accretion on the aerodynamic performance of a multi-element high-lift airfoil have been investigated at moderate-to-high Reynolds numbers.

Get this from a library. Effect of in-flight ice accretion on the performance of a multi-element airfoil. [Abdollah Khodadoust; United States. National Aeronautics and Space Administration.;]. Effect of In-Flight Ice Accretion on the Performance of a Multi-Element Airfoil Authors / Details: Abdollah Khodadoust, Chet Dominik, McDonnell Douglas Aerospace; Jaiwon Shin and Dean Miller, NASA.

The purpose of this paper is to simulate the ice shape on a multi-element airfoil. Icing accretion on a multi-element airfoil has already been analyzed in the past [Addy, Harold E., Jr., "Ice.

Sang WM, Li FW, Shi YY () Research on the effect of freezing on air flow and aerodynamic characteristics of airfoil and multi-element airfoils.

Author: H. Gu, W. Sang, Y. Cai. There are very few studies to investigate aerodynamic performance degradation of multi-element airfoil, in particular, under critical near-freezing SLD icing conditions. In this study, ice accretion and aerodynamic effects on a multi-element airfoil under the recently introduced SLD icing conditions were investigated in detail.

Establishing meaningful incremental lift effects due to ice accretions on this class of geometries is typically more dependent upon achieving/identifying representative aerodynamic lift levels and characteristics on the baseline (un-iced) configuration than on the iced one, particularly when using ground-test is because the maximum lift levels achieved by the un-iced designs Cited by: The impingement behavior of large water droplets, their interactions with the solid wall and the subsequent ice accretion and aerodynamic effects have become a key issue in in-flight aircraft icing.

In this study, ice accretion and aerodynamic effects on a multi-element airfoil were investigated under the recently introduced Appendix O icing Cited by: 5. Ice accretion and aerodynamic effects on a multi-element airfoil under SLD icing conditions Aerospace Science and Technology, Vol. 85 Supercooled large droplet icing accretion and its unsteady aerodynamic characteristics on high-lift devicesCited by:   Insight into rime ice accretion on an aircraft wing and corresponding effects on aerodynamic performance - Volume Issue - Y.

Cao, J. Huang, Z. Xu, J. YinCited by: 4. Ice accretion simulation on multi-element airfoils using extended Messinger model 8 August | Heat and Mass Transfer, Vol. 45, No. 3 Ice Cited by: It is common for an aircraft to encounter icing weather conditions, which would be dangerous to the flight.

Thus, there is a need to study the detail of icing effect and the process of ice accretion on the aircraft. In this paper, considering three different icing models according to weather conditions, i.e., sharp-angled ice, blunt-nosed ice and double horn ice, the Reynolds-averaged N-S.

Ice accretion prediction on single and multi-element airfoils and the resulting performance degradation. Paper presented at the 35th Aerospace Sciences Meeting & Exhibit, Reno, Nev, USA.

Conference paper. Finally, the 3D rotating effect on collection efficiency is studied. The results demonstrate that, at a wind speed of 7 m/s, the 3D rotating effect has almost no influence on collection efficiency; however, the effect must be considered in water droplet collection at a wind speed of 10 m/ by: 1.

In-flight icing on airframes and engines may cause great risk to flight safety due to aerodynamic performance degradation and engine performance losses. It is very important to simulate ice accretion to develop ice protection systems and to comply with Airworthiness Requirements (FAR/CS, App.

C and very recently, App. O and P). Full text of "[Tail Plane Icing]" FAA and NASA embarked upon a four-year research program to address the problem of tailplane stall and to quantify the effect of tailplane ice accretion on aircraft performance and handling characteristics.

The goals of this program, which was completed in Marchwere to collect aerodynamic data for an. Full text of "DTIC ADA Aircraft Icing Handbook.

(Update)" See other formats. Effect of High-Fidelity Ice Accretion Simulations on the Performance of a Full-Scale Airfoil Model Broeren, A.

/ Bragg, M. / Addy, H. / Lee, S. / Moens, F. / Guffond, D. / American Institute of Aeronautics and Astronautics | This project addresses the need for a dielectric sensor technology to detect, quantify, and characterize ice accretion on aircraft components both in-flight and on the ground.

A prototype apparatus will be designed to measure accurately the thickness of varying layers of water, deicing fluid, and ice-based on a shunting dielectric sensor. Turbomachinery Temperature Measurements Using an Oxygen-Laser-Induced Fluorescence Aerodyne Research, Inc.

45 Manning Rd Billerica MA Kurt D. Annen LeRC NAS Full text of "Aeronautical Engineering: A special bibliography with indexes, supplement 51" See other formats.For more detailed information refer to ACPilot Guide: Flight in Icing Conditions, AC A, Effect of Icing on Aircraft Control and Airplane Deice and Anti-Ice Systems, AC A.