Dra Nasa Onera Collaboration On Icing Research Part 2 Prediction Of Airfoil Ice Accretion

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Dra/Nasa/Onera Collaboration on Icing Research. Part 2; Prediction of Airfoil Ice Accretion

Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781722360658
Total Pages : 54 pages
Book Rating : 4.3/5 (66 download)

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Book Synopsis Dra/Nasa/Onera Collaboration on Icing Research. Part 2; Prediction of Airfoil Ice Accretion by : National Aeronautics and Space Administration (NASA)

Download or read book Dra/Nasa/Onera Collaboration on Icing Research. Part 2; Prediction of Airfoil Ice Accretion written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-06 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents results from a joint study by DRA, NASA, and ONERA for the purpose of comparing, improving, and validating the aircraft icing computer codes developed by each agency. These codes are of three kinds: (1) water droplet trajectory prediction, (2) ice accretion modeling, and (3) transient electrothermal deicer analysis. In this joint study, the agencies compared their code predictions with each other and with experimental results. These comparison exercises were published in three technical reports, each with joint authorship. DRA published and had first authorship of Part 1 - Droplet Trajectory Calculations, NASA of Part 2 - Ice Accretion Prediction, and ONERA of Part 3 - Electrothermal Deicer Analysis. The results cover work done during the period from August 1986 to late 1991. As a result, all of the information in this report is dated. Where necessary, current information is provided to show the direction of current research. In this present report on ice accretion, each agency predicted ice shapes on two dimensional airfoils under icing conditions for which experimental ice shapes were available. In general, all three codes did a reasonable job of predicting the measured ice shapes. For any given experimental condition, one of the three codes predicted the general ice features (i.e., shape, impingement limits, mass of ice) somewhat better than did the other two. However, no single code consistently did better than the other two over the full range of conditions examined, which included rime, mixed, and glaze ice conditions. In several of the cases, DRA showed that the user's knowledge of icing can significantly improve the accuracy of the code prediction. Rime ice predictions were reasonably accurate and consistent among the codes, because droplets freeze on impact and the freezing model is simple. Glaze ice predictions were less accurate and less consistent among the codes, because the freezing model is more complex and is critically dependent...

DRA/NASA/ONERA Collaboration on Icing Research

Author : William B. Wright
Publisher :
ISBN 13 :
Total Pages : 56 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis DRA/NASA/ONERA Collaboration on Icing Research by : William B. Wright

Download or read book DRA/NASA/ONERA Collaboration on Icing Research written by William B. Wright and published by . This book was released on 1997 with total page 56 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Ice Accretion and Icing Technology

Author : Robert J Flemming
Publisher : SAE International
ISBN 13 : 0768081203
Total Pages : 122 pages
Book Rating : 4.7/5 (68 download)

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Book Synopsis Ice Accretion and Icing Technology by : Robert J Flemming

Download or read book Ice Accretion and Icing Technology written by Robert J Flemming and published by SAE International. This book was released on 2015-04-16 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of inflight atmospheric icing can be devastating to aircraft. Universities and industry have been hard at work to respond to the challenge of maintaining flight safety in all weather conditions. Proposed changes in the regulations for operation in icing conditions are sure to keep this type of research and development at its highest level. This is especially true for the effects of ice crystals in the atmosphere, and for the threat associated with supercooled large drop (SLD) icing. This collection of ten SAE International technical papers brings together vital contributions to the subject. Icing on aircraft surfaces would not be a problem if a material were discovered that prevented the freezing and accretion of supercooled drops. Many options that appeared to have promising icephobic properties have had serious shortfalls in durability. This title addresses, among other topics, the measurement techniques and the drop physics that apply to icing, certification for flight through ice crystal clouds and in supercooled large drops, improvements in predictive techniques, scaling methods, test facilities and techniques, and rotorcraft icing.

Ice Adhesion

Author : K. L. Mittal
Publisher : John Wiley & Sons
ISBN 13 : 1119640539
Total Pages : 704 pages
Book Rating : 4.1/5 (196 download)

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Book Synopsis Ice Adhesion by : K. L. Mittal

Download or read book Ice Adhesion written by K. L. Mittal and published by John Wiley & Sons. This book was released on 2020-10-21 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: The book containing 18 chapters is divided into three parts: Part 1: Fundamentals of Ice Formation and Ice Characteristics; Part 2: Ice Adhesion and Its Measurement; and Part 3: Methods to Mitigate Ice Adhesion. The topics covered Include: Factors influencing the formation, adhesion and friction of ice; ice nucleation on solid surfaces; physics of ice nucleation and growth on a surface; condensation frosting; defrosting properties of structured surfaces; relationship between surface free energy and ice adhesion to surfaces; metrology of ice adhesion; test methods for quantifying ice adhesion strength to surfaces; interlaboratory studies of ice adhesion strength; mechanisms of surface icing and deicing technologies; anti-icing using microstructured surfaces; durability assessment of icephobic coatings; bio-inspired icephobic coatings; challenges in rational fabrication of icephobic surfaces; protection from ice accretion on aircraft; and numerical modeling and its application to inflight icing.

Handbook of Numerical Simulation of In-Flight Icing

Author : Wagdi George Habashi
Publisher : Springer Nature
ISBN 13 : 3031338456
Total Pages : 1278 pages
Book Rating : 4.0/5 (313 download)

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Book Synopsis Handbook of Numerical Simulation of In-Flight Icing by : Wagdi George Habashi

Download or read book Handbook of Numerical Simulation of In-Flight Icing written by Wagdi George Habashi and published by Springer Nature. This book was released on 2024-01-12 with total page 1278 pages. Available in PDF, EPUB and Kindle. Book excerpt: This Handbook of Numerical Simulation of In-Flight Icing covers an array of methodologies and technologies on numerical simulation of in-flight icing and its applications. Comprised of contributions from internationally recognized experts from the Americas, Asia, and the EU, this authoritative, self-contained reference includes best practices and specification data spanning the gamut of simulation tools available internationally that can be used to speed up the certification of aircraft and make them safer to fly into known icing. The collection features nine sections concentrating on aircraft, rotorcraft, jet engines, UAVs; ice protection systems, including hot-air, electrothermal, and others; sensors and probes, CFD in the aid of testing, flight simulators, and certification process acceleration methods. Incorporating perspectives from academia, commercial, government R&D, the book is ideal for a range of engineers and scientists concerned with in-flight icing applications.

NASA's Contributions to Aeronautics: Flight environment, operations, flight testing, and research

Author :
Publisher :
ISBN 13 :
Total Pages : 1064 pages
Book Rating : 4.:/5 (318 download)

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Book Synopsis NASA's Contributions to Aeronautics: Flight environment, operations, flight testing, and research by :

Download or read book NASA's Contributions to Aeronautics: Flight environment, operations, flight testing, and research written by and published by . This book was released on 2010 with total page 1064 pages. Available in PDF, EPUB and Kindle. Book excerpt: Two-volume collection of case studies on aspects of NACA-NASA research by noted engineers, airmen, historians, museum curators, journalists, and independent scholars. Explores various aspects of how NACA-NASA research took aeronautics from the subsonic to the hypersonic era.-publisher description.

NASA's Contributions to Aeronautics, Volume 2, Flight Environment ..., NASA/SP-2010-570-Vol 2, 2010, *

Author :
Publisher :
ISBN 13 :
Total Pages : 1070 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis NASA's Contributions to Aeronautics, Volume 2, Flight Environment ..., NASA/SP-2010-570-Vol 2, 2010, * by :

Download or read book NASA's Contributions to Aeronautics, Volume 2, Flight Environment ..., NASA/SP-2010-570-Vol 2, 2010, * written by and published by . This book was released on 2011 with total page 1070 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Computational heat and mass transfer – CHMT 2001- Vol. I

Author :
Publisher : Editora E-papers
ISBN 13 : 8587922440
Total Pages : 413 pages
Book Rating : 4.5/5 (879 download)

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Book Synopsis Computational heat and mass transfer – CHMT 2001- Vol. I by :

Download or read book Computational heat and mass transfer – CHMT 2001- Vol. I written by and published by Editora E-papers. This book was released on with total page 413 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Advances in Fluid Mechanics VII

Author : M. Rahman
Publisher : WIT Press
ISBN 13 : 1845641094
Total Pages : 513 pages
Book Rating : 4.8/5 (456 download)

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Book Synopsis Advances in Fluid Mechanics VII by : M. Rahman

Download or read book Advances in Fluid Mechanics VII written by M. Rahman and published by WIT Press. This book was released on 2008-05-09 with total page 513 pages. Available in PDF, EPUB and Kindle. Book excerpt: Covering the latest developments in this field, this text features edited versions of papers presented at the Seventh International Conference on Advances in Fluid Mechanics.

A Summary of Validation Results for LEWICE 2.0

Author : William B. Wright
Publisher :
ISBN 13 :
Total Pages : 28 pages
Book Rating : 4.:/5 (317 download)

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Book Synopsis A Summary of Validation Results for LEWICE 2.0 by : William B. Wright

Download or read book A Summary of Validation Results for LEWICE 2.0 written by William B. Wright and published by . This book was released on 1999 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Ice Accretions and Icing Effects for Modern Airfoils

Author : Harold E. Addy
Publisher :
ISBN 13 :
Total Pages : 292 pages
Book Rating : 4.:/5 (1 download)

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Book Synopsis Ice Accretions and Icing Effects for Modern Airfoils by : Harold E. Addy

Download or read book Ice Accretions and Icing Effects for Modern Airfoils written by Harold E. Addy and published by . This book was released on 2000 with total page 292 pages. Available in PDF, EPUB and Kindle. Book excerpt: Icing tests were conducted to document ice shapes formed on three different two-dimensional airfoils and to study the effects of the accreted ice on aerodynamic performance. The models tested were representative of airfoil designs in current use for each of the commercial transport, business jet, and general aviation categories of aircraft. The models were subjected to a range of icing conditions in an icing wind tunnel. The conditions were selected primarily from the Federal Aviation Administration's Federal Aviation Regulations 25 Appendix C atmospheric icing conditions. A few large droplet icing conditions were included. To verify the aerodynamic performance measurements, molds were made of selected ice shapes formed in the icing tunnel. Castings of the ice were made from the molds and placed on a model in a dry, low-turbulence wind tunnel where precision aerodynamic performance measurements were made. Documentation of all the ice shapes and the aerodynamic performance measurements made during the icing tunnel tests is included in this report. Results from the dry, low-turbulence wind tunnel tests are also presented.

Wind Turbines in Cold Climates

Author : Lorenzo Battisti
Publisher : Springer
ISBN 13 : 3319051911
Total Pages : 355 pages
Book Rating : 4.3/5 (19 download)

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Book Synopsis Wind Turbines in Cold Climates by : Lorenzo Battisti

Download or read book Wind Turbines in Cold Climates written by Lorenzo Battisti and published by Springer. This book was released on 2015-02-16 with total page 355 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book addresses the key concerns regarding the operation of wind turbines in cold climates and focuses in particular on the analysis of icing and methods for its mitigation. Topics covered include the implications of cold climates for wind turbine design and operation, the relevance of icing for wind turbines, the icing process itself, ice prevention systems and thermal anti-icing system design. In each chapter, care is taken to build systematically on the basic knowledge, providing the reader with the level of detail required for a thorough understanding. An important feature is the inclusion of several original analytical and numerical models for ready computation of icing impacts and design assessment. The breadth of the coverage and the in-depth scientific analysis, with calculations and worked examples relating to both fluid dynamics and thermodynamics, ensure that the book will serve not only as a textbook but also as a practical manual for general design tasks.

Monthly Catalog of United States Government Publications

Author :
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (891 download)

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Book Synopsis Monthly Catalog of United States Government Publications by :

Download or read book Monthly Catalog of United States Government Publications written by and published by . This book was released on 1998-07 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

37th AIAA Aerospace Sciences Meeting and Exhibit

Author :
Publisher :
ISBN 13 :
Total Pages : 590 pages
Book Rating : 4.0/5 ( download)

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Book Synopsis 37th AIAA Aerospace Sciences Meeting and Exhibit by :

Download or read book 37th AIAA Aerospace Sciences Meeting and Exhibit written by and published by . This book was released on 1999 with total page 590 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Experimental Ice Shape and Performance Characteristics for a Multi-Element Airfoil in the NASA Lewis Icing Research Tunnel

Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781723574658
Total Pages : 324 pages
Book Rating : 4.5/5 (746 download)

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Book Synopsis Experimental Ice Shape and Performance Characteristics for a Multi-Element Airfoil in the NASA Lewis Icing Research Tunnel by : National Aeronautics and Space Administration (NASA)

Download or read book Experimental Ice Shape and Performance Characteristics for a Multi-Element Airfoil in the NASA Lewis Icing Research Tunnel written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-24 with total page 324 pages. Available in PDF, EPUB and Kindle. Book excerpt: A study of the ice accretion patterns and performance of characteristics of a multi-element airfoil was undertaken at the NASA-Lewis Icing Research Tunnel. Several configurations were examined to determine the ice shape and performance characteristics. The testing included glaze, rime, and mixed icing regimes. Tunnel cloud conditions were set to correspond to those typical of the operating environment for commercial transport aircraft. Measurements acquired included ice profile tracings and aerodynamic forces both during the accretion process and in a post-accretion evaluation over a range of angle of attack. Substantial ice accretions developed on the main wing, flaps, and slat surfaces. Force measurements indicate severe performance degradation, especially near CL max, for both light and heavy ice accretion. Frost was seen on the lower surface of the airfoil which was found to contribute significantly to the force components. Berkowitz, Brian M. and Potapczuk, Mark G. and Namdar, Bahman S. and Langhals, Tammy J. Glenn Research Center NASA-TM-105380, E-6767, NAS 1.15:105380 NAS3-25266; RTOP 505-68-10...

Journal of Thermophysics and Heat Transfer

Author :
Publisher :
ISBN 13 :
Total Pages : 1190 pages
Book Rating : 4.F/5 ( download)

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Book Synopsis Journal of Thermophysics and Heat Transfer by :

Download or read book Journal of Thermophysics and Heat Transfer written by and published by . This book was released on 2000 with total page 1190 pages. Available in PDF, EPUB and Kindle. Book excerpt: This journal is devoted to the advancement of the science and technology of thermophysics and heat transfer through the dissemination of original research papers disclosing new technical knowledge and exploratory developments and applications based on new knowledge. It publishes papers that deal with the properties and mechanisms involved in thermal energy transfer and storage in gases, liquids, and solids or combinations thereof. These studies include conductive, convective, and radiative modes alone or in combination and the effects of the environment.

The Influence of Viscous Effects on Ice Accretion Prediction and Airfoil Performance Predictions

Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781721782758
Total Pages : 28 pages
Book Rating : 4.7/5 (827 download)

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Book Synopsis The Influence of Viscous Effects on Ice Accretion Prediction and Airfoil Performance Predictions by : National Aeronautics and Space Administration (NASA)

Download or read book The Influence of Viscous Effects on Ice Accretion Prediction and Airfoil Performance Predictions written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-06-24 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: A computational study was conducted to evaluate the effectiveness of using a viscous flow solution in an ice accretion code and the resulting accuracy of aerodynamic performance prediction. Ice shapes were obtained for one single-element and one multi-element airfoil using both potential flow and Navier-Stokes flowfields in the LEWICE ice accretion code. Aerodynamics were then calculated using a Navier-Stokes flow solver. Kreeger, Richard E. and Wright, William B. Glenn Research Center NASA/TM-2005-213593, AIAA Paper 2005-1373, E-15061