Download or read book Further Development of an Anti icing Runback Model written by Kamel M. Al-Khalil and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of an Anti icing Runback Model written by K. M. Al-Khalil and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Wind Turbine Icing Physics and Anti De Icing Technology written by Hui Hu and published by Academic Press. This book was released on 2022-08-30 with total page 224 pages. Available in PDF, EPUB and Kindle. Book excerpt: Wind Turbine Icing Physics and Anti-/De-Icing Technology gives a comprehensive update of research on the underlying physics pertinent to wind turbine icing and the development of various effective and robust anti-/de-icing technology for wind turbine icing mitigation. The book introduces the most recent research results derived from both laboratory studies and field experiments. Specifically, the research results based on field measurement campaigns to quantify the characteristics of the ice structures accreted over the blades surfaces of utility-scale wind turbines by using a Supervisory Control and Data Acquisition (SCADA) system and an Unmanned-Aerial-Vehicle (UAV) equipped with a high-resolution digital camera are also introduced. In addition, comprehensive lab experimental studies are explored, along with a suite of advanced flow diagnostic techniques, a detailed overview of the improvements, and the advantages and disadvantages of state-of-the-art ice mitigation strategies. This new addition to the Wind Energy Engineering series will be useful to all researchers and industry professionals who address icing issues through testing, research and industrial innovation. Covers detailed improvements and the advantages/disadvantages of state-of-the-art ice mitigation strategies Includes condition monitoring contents for lab-scale experiments and field tests Presents the potential of various bio-inspired icephobic coatings of wind turbine blades
Download or read book International Aerospace Abstracts written by and published by . This book was released on 1996 with total page 940 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Computational Methodology for Bleed Air Ice Protection System Parametric Analysis written by Rodrigo Hoffmann-Domingos and published by . This book was released on 2010 with total page 110 pages. Available in PDF, EPUB and Kindle. Book excerpt: Aircraft in-flight icing is a major safety issue for civil aviation, having already caused hundreds of accidents and incidents related to aerodynamic degradation due to post takeoff ice accretion. Airplane makers have to protect the airframe critical surfaces against ice build up in order to ensure continued safe flight. Ice protection is typically performed by mechanical, chemical, or thermal systems. One of the most traditional and still used techniques is the one known as hot-air anti-icing, which heats the interior of the affected surfaces with an array of small hot-air jets generated by a piccolo tube. In some cases, the thermal energy provided by hot-air ice protection systems is high enough to fully evaporate the impinging supercooled droplets (fully evaporative systems), while in other cases, it is only sufficient to maintain most of the protected region free of ice (running wet systems). In the latter case, runback ice formations are often observed downstream of the wing leading edge depending on hot-air, icing, and flight conditions. The design process of hot-air anti-icing systems is traditionally based on icing wind tunnel experiments, which can be very costly. The experimental effort can be significantly reduced with the use of accurate three-dimensional computational fluid dynamic (CFD) simulation tools. Nevertheless, such type of simulation requires extensive CPU time for exploring all the design variables. This thesis deals with the development of an efficient hot-air anti-icing system simulation tool that can reduce the computational time to identify the critical design parameters by at least two orders of magnitude, as compared to 3-d CFD tools, therefore narrowing down the use of more sophisticated tools to just a small subset of the entire design space. The hot-air anti-icing simulation tool is based on a combination of available CFD software and a thermodynamic model developed in the present work. The computation of the external flow properties is performed with FLUENT (in a 2-d domain) by assuming an isothermal condition to the airfoil external wall. The internal skin heat transfer is computed with the use of local Nusselt number correlations developed through calibrations with CFD data. The internal and external flow properties on the airfoil skin are provided as inputs to a steady state thermodynamic model, which is composed of a 2-d heat diffusion model and a 1-d uniform film model for the runback water flow. The performance of the numerical tool was tested against 3-d CFD simulation and experimental data obtained for a wing equipped with a representative piccolo tube anti-icing system. The results demonstrate that the simplifications do not affect significantly the fidelity of the predictions, suggesting that the numerical tool can be used to support parametric and optimization studies during the development of hot-air anti-icing systems.
Download or read book 30th Aerospace Sciences Meeting and Exhibit 92 0032 92 0059 written by and published by . This book was released on 1992 with total page 442 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Ice Adhesion written by K. L. Mittal and published by John Wiley & Sons. This book was released on 2020-12-15 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt: This unique book presents ways to mitigate the disastrous effects of snow/ice accumulation and discusses the mechanisms of new coatings deicing technologies. The strategies currently used to combat ice accumulation problems involve chemical, mechanical or electrical approaches. These are expensive and labor intensive, and the use of chemicals raises serious environmental concerns. The availability of truly icephobic surfaces or coatings will be a big boon in preventing the devastating effects of ice accumulation. Currently, there is tremendous interest in harnessing nanotechnology in rendering surfaces icephobic or in devising icephobic surface materials and coatings, and all signals indicate that such interest will continue unabated in the future. As the key issue regarding icephobic materials or coatings is their durability, much effort is being spent in developing surface materials or coatings which can be effective over a long period. With the tremendous activity in this arena, there is strong hope that in the not too distant future, durable surface materials or coatings will come to fruition. This book contains 20 chapters by subject matter experts and is divided into three parts— Part 1: Fundamentals of Ice Formation and Characterization; 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; icephobicities of superhydrophobic surfaces; anti-icing using microstructured surfaces; icephobic surfaces: features and challenges; bio-inspired anti-icing surface materials; durability of anti-icing coatings; durability of icephobic coatings; bio-inspired icephobic coatings; protection from ice accretion on aircraft; and numerical modeling and its application to inflight icing.
Download or read book NASA SP written by and published by . This book was released on 1992 with total page 654 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of an Electrothermal De icing anti icing Model written by R. Henry and published by . This book was released on 1992 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Validation of NASA thermal ice protection computer codes written by and published by . This book was released on 2001 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 31st Aerospace Sciences Meeting and Exhibit 93 0140 93 0179 written by and published by . This book was released on 1993 with total page 632 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aeronautical Engineering written by and published by . This book was released on 1991 with total page 538 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Numerical Simulation of an Aircraft Anti icing System Incorporating a Rivulet Model for the Runback Water written by Kamel M. Al-Khalil and published by . This book was released on 1991 with total page 394 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 91 0248 91 0284 written by and published by . This book was released on 1991 with total page 450 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book 32nd Aerospace Sciences Meeting Exhibit 94 0610 94 0639 written by and published by . This book was released on 1994 with total page 466 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Aerospace America written by and published by . This book was released on 2007 with total page 236 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Development of Anti Icing Technology written by Robert R. Blackcurn and published by Transportation Research Board. This book was released on 1993-04-01 with total page 479 pages. Available in PDF, EPUB and Kindle. Book excerpt:
