Download or read book Improvement of Runback Water Film Calculation and Its Impact on Ice Prediction written by Yves Soufflet and published by . This book was released on 2008 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the past few decades, aircraft icing has been the subject of numerous studies. Iceaccretion on an aircraft can damage its aerodynamic performance. It can also have a devastatingaffect on structures such as high voltage pylons. The simulation of ice accretionrepresents an important technological breakthrough in the understanding of ice behaviouras well as an alternative to expensive experiments. Although numerical models will probablynever replace wind tunnel experiments, they continuously progress and benefit fromthe latest advances in computing techniques. ICECREMO2 is a new generation modeland uses an unstructured grid approach. Unstructured meshes offer real advantages inthe generation of complex grid structures but also provide support for grid adaptivity. Adaptivity consists in improving the resolution only in some aspects of the solution. Itoffers the benefits of the high resolution without the computational overhead of classicalstructured methods. Adaptive methods are usually more difficult to implement and theapplication to the equation coupling water film and ice growth has never been investigatedbefore this work. The mathematical model used in ICECREMO describes both the water film flow and theice growth. This allows us to better predict glaze ice accretion when a runback waterfilm is present. The equation describing the thin film water flow is a complex non-linearfourth-order degenerate partial differential equation. To resolve complex features suchas a moving front, high resolution numerical methods are necessary. Such a numericalscheme has been developed for this equation in a previous study on structured grid, andhas proven to be reliable. In this work Sweby s scheme has been reformulated in a finitevolume framework, an error estimator has been de ned for our adaptive mesh refinementmethod and a grid refinement strategy has been implemented which follows the water filmfront and keeps it under high resolution. Finally, the impact of the improved resolution of the water film on the glaze ice growthis investigated. Results obtained with first-order and high resolution methods have beencompared on different model problems under various conditions. At the end an extensionof the refinement strategy is proposed by defining error estimators with respect to the icelayer and by combining it with a multi-step procedure.
Download or read book Improvement of Runback Water Film Calculation and Its Impact on Ice Prediction written by Y. Soufflet and published by . This book was released on 2008 with total page 178 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Applied mechanics reviews written by and published by . This book was released on 1948 with total page 400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Index to Theses with Abstracts Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards written by and published by . This book was released on 2009 with total page 398 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Joint University Program for Air Transportation Research 1990 1991 written by and published by . This book was released on 1991 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Aircraft written by and published by . This book was released on 1999 with total page 488 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Joint University Program for Air Transportation Research 1991 1992 written by and published by . This book was released on 1993 with total page 184 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 380 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.
Download or read book NASA Technical Memorandum written by and published by . This book was released on 1994 with total page 492 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Research National Bureau of Standards written by United States. National Bureau of Standards and published by . This book was released on 1964 with total page 1400 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Journal of Research written by United States. National Bureau of Standards and published by . This book was released on 1964 with total page 1354 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book NASA Conference Publication written by and published by . This book was released on 1991 with total page 200 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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.
Download or read book Journal of Heat Transfer written by and published by . This book was released on 2003 with total page 404 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Update to the NASA Lewis Ice Accretion Code LEWICE written by and published by . This book was released on 1994 with total page 54 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Icephobic Materials for Anti De icing Technologies written by Yizhou Shen and published by Springer Nature. This book was released on with total page 524 pages. Available in PDF, EPUB and Kindle. Book excerpt:
