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Author : David N. Anderson
Publisher :
ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.:/5 (317 download)
Download or read book Methods for Scaling Icing Test Conditions written by David N. Anderson and published by . This book was released on 1995 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (317 download)
Download or read book Evaluation of Methods to Select Scale Velocities in Icing Scaling Tests written by and published by . This book was released on 2003 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David N. Anderson
Publisher :
ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.:/5 (317 download)
Download or read book Scaling Methods for Simulating Aircraft In-Flight Icing Encounters written by David N. Anderson and published by . This book was released on 1997 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Gary A. Ruff
Publisher :
ISBN 13 :
Total Pages : 80 pages
Book Rating : 4.:/5 (227 download)
Download or read book Analysis and Verification of the Icing Scaling Equations. Volume 1. Revision written by Gary A. Ruff and published by . This book was released on 1986 with total page 80 pages. Available in PDF, EPUB and Kindle. Book excerpt: Study objectives were to evaluate the equations governing the ice-accretion process to identify proposed scaling parameters and to conduct tests to determine which, is any, of the proposed methods produced scale ice accretions. Study results include: (1) A set of equations that can be used to calculate test conditions so that scaled ice shapes are produced on geometrically similar bodies was developed and experimentally verified. (2) Posttest evaluation of the scaling parameters based on the actual test conditions was necessary for accurate evaluation of test results. (3) An icing similitude computer code, SIMICE, was developed to calculate similtude conditions using the verified scaling equations. (4) The equations were applicable over the range of meteorological conditions found in natural icing, with the possible exception of velocity. (5) Velocity is the primary limitation of the scaling equations. To maintain scaled flow fields and droplet impingement characteristics, both the model and full-scale velocities must yield a Reynolds number> or = 200,000 and
Author :
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (317 download)
Download or read book Effect of Velocity in Icing Scaling Tests written by and published by . This book was released on 2003 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : C. S. Bartlett
Publisher :
ISBN 13 :
Total Pages : 64 pages
Book Rating : 4.:/5 (1 download)
Download or read book An Empirical Look at Tolerances in Setting Icing Test Conditions with Particular Application to Icing Similitude written by C. S. Bartlett and published by . This book was released on 1988 with total page 64 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781719376181
Total Pages : 40 pages
Book Rating : 4.3/5 (761 download)
Download or read book Ice Shape Scaling for Aircraft in Sld Conditions written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-05-22 with total page 40 pages. Available in PDF, EPUB and Kindle. Book excerpt: This paper has summarized recent NASA research into scaling of SLD conditions with data from both SLD and Appendix C tests. Scaling results obtained by applying existing scaling methods for size and test-condition scaling will be reviewed. Large feather growth issues, including scaling approaches, will be discussed briefly. The material included applies only to unprotected, unswept geometries. Within the limits of the conditions tested to date, the results show that the similarity parameters needed for Appendix C scaling also can be used for SLD scaling, and no additional parameters are required. These results were based on visual comparisons of reference and scale ice shapes. Nearly all of the experimental results presented have been obtained in sea-level tunnels. The currently recommended methods to scale model size, icing limit and test conditions are described. Anderson, David N. and Tsao, Jen-Ching Glenn Research Center ICE FORMATION; SCALE MODELS; WIND TUNNEL TESTS; RESEARCH FACILITIES; SUPERCOOLING; DROP SIZE; VELOCITY DISTRIBUTION; FREEZING; DEPOSITION; SEA LEVEL; STAGNATION FLOW
Author : National Aeronautics and Space Administration (NASA)
Publisher : Createspace Independent Publishing Platform
ISBN 13 : 9781721799886
Total Pages : 38 pages
Book Rating : 4.7/5 (998 download)
Download or read book Overview of Icing Physics Relevant to Scaling 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 38 pages. Available in PDF, EPUB and Kindle. Book excerpt: An understanding of icing physics is required for the development of both scaling methods and ice-accretion prediction codes. This paper gives an overview of our present understanding of the important physical processes and the associated similarity parameters that determine the shape of Appendix C ice accretions. For many years it has been recognized that ice accretion processes depend on flow effects over the model, on droplet trajectories, on the rate of water collection and time of exposure, and, for glaze ice, on a heat balance. For scaling applications, equations describing these events have been based on analyses at the stagnation line of the model and have resulted in the identification of several non-dimensional similarity parameters. The parameters include the modified inertia parameter of the water drop, the accumulation parameter and the freezing fraction. Other parameters dealing with the leading edge heat balance have also been used for convenience. By equating scale expressions for these parameters to the values to be simulated a set of equations is produced which can be solved for the scale test conditions. Studies in the past few years have shown that at least one parameter in addition to those mentioned above is needed to describe surface-water effects, and some of the traditional parameters may not be as significant as once thought. Insight into the importance of each parameter, and the physical processes it represents, can be made by viewing whether ice shapes change, and the extent of the change, when each parameter is varied. Experimental evidence is presented to establish the importance of each of the traditionally used parameters and to identify the possible form of a new similarity parameter to be used for scaling. Anderson, David N. and Tsao, Jen-Ching Glenn Research Center NASA/CR-2005-213851, Rept-2003-01-2130, E-15221
Author : David N. Anderson
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (317 download)
Download or read book Further Evaluation of Traditional Icing Scaling Methods written by David N. Anderson and published by . This book was released on 1996 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : David N. Anderson
Publisher :
ISBN 13 :
Total Pages : 20 pages
Book Rating : 4.:/5 (317 download)
Download or read book Evaluation of Constant-Weber-number Scaling for Icing Tests written by David N. Anderson and published by . This book was released on 1996 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 22 pages
Book Rating : 4.:/5 (317 download)
Download or read book Quantification of Ice Accretions for Icing Scaling Evaluations written by and published by . This book was released on 2003 with total page 22 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Robert J Flemming
Publisher : SAE International
ISBN 13 : 0768081203
Total Pages : 122 pages
Book Rating : 4.7/5 (68 download)
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.
Author :
Publisher :
ISBN 13 :
Total Pages : 18 pages
Book Rating : 4.:/5 (317 download)
Download or read book A Preliminary Study of Ice-Accretion Scaling for SLD Conditions written by and published by . This book was released on 2003 with total page 18 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Yiqiang Han
Publisher : LAP Lambert Academic Publishing
ISBN 13 : 9783846598290
Total Pages : 160 pages
Book Rating : 4.5/5 (982 download)
Download or read book Theoretical and Experimental Study of Helicopter Icing Scaling Methods written by Yiqiang Han and published by LAP Lambert Academic Publishing. This book was released on 2011-12 with total page 160 pages. Available in PDF, EPUB and Kindle. Book excerpt: Flight into icing conditions introduces the risk of ice accretion to helicopter rotors. To understand and avoid the dangers related to rotor icing, test facilities such as the NASA Glenn Icing Research Tunnel have been developed. Due to the confined test section size of most current icing test facilities, an icing test on a full-chord helicopter rotor blade is not possible. To fulfill the research need of a novel full-scale-chord rotor icing test facility, the Adverse Environment Rotor Test Stand (AERTS) was designed and constructed at the Vertical Lift Research Center of Excellence, at the Pennsylvania State University. This book gives a comprehensive review of the current aircraft icing research. Ice accretion experiments were conducted to validate ice shape reproduction capabilities of this facility. Classical ice scaling methods were introduced and implemented to ensure experimental ice shape reproduction for varying chord-size blades. The validity of applying scaling laws to low-thrusting rotors was demonstrated. The comprehensive aircraft icing database provided in this book can be applied widely to the aircraft design and testing procedures.
Author :
Publisher :
ISBN 13 :
Total Pages : 456 pages
Book Rating : 4.:/5 (31 download)
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 456 pages. Available in PDF, EPUB and Kindle. Book excerpt: Lists citations with abstracts for aerospace related reports obtained from world wide sources and announces documents that have recently been entered into the NASA Scientific and Technical Information Database.
Author : David N. Anderson
Publisher :
ISBN 13 :
Total Pages : 14 pages
Book Rating : 4.:/5 (317 download)
Download or read book Rime-, Mixed- and Glaze-ice Evaluations of Three Scaling Laws written by David N. Anderson and published by . This book was released on 1994 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : United States. Federal Aviation Administration
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.:/5 (319 download)
Download or read book Aircraft Ice Protection written by United States. Federal Aviation Administration and published by . This book was released on 1971 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
