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Author : Jeff M. Diebold
Publisher :
ISBN 13 :
Total Pages : 24 pages
Book Rating : 4.:/5 (98 download)
Download or read book Aerodynamic Classification of Swept-wing Ice Accretion written by Jeff M. Diebold and published by . This book was released on 2013 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Andy P. Broeren
Publisher :
ISBN 13 :
Total Pages : 27 pages
Book Rating : 4.:/5 (95 download)
Download or read book Swept-wing ice accretion characterization and aerodynamics written by Andy P. Broeren and published by . This book was released on 2013 with total page 27 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : A. Khodadoust
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book Measured Aerodynamic Performance of a Swept Wing with a Simulated Ice Accretion written by A. Khodadoust and published by . This book was released on 1990 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael Papadakis
Publisher :
ISBN 13 :
Total Pages : 210 pages
Book Rating : 4.:/5 (627 download)
Download or read book Experimental Investigation of Ice Accretion Effects on a Swept Wing written by Michael Papadakis and published by . This book was released on 2005 with total page 210 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation was conducted to study the effects of 2-, 5-, 10-, and 22.5-min ice accretions on the aerodynamic performance of a swept finite wing. The ice shapes tested included castings of ice accretions obtained from icing tests at the NASA Glenn Icing Research Tunnel (IRT) and simulated ice shapes obtained with the LEWICE 2.0 ice accretion code. The conditions used for the icing tests were selected to provide five glaze ice shapes with complete and incomplete scallop features and a small rime ice shape.
Author : M. Bragg
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book Effect of a Simulated Ice Accretion on the Aerodynamics of a Swept Wing written by M. Bragg and published by . This book was released on 1991 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author :
Publisher :
ISBN 13 :
Total Pages : 0 pages
Book Rating : 4.:/5 (627 download)
Download or read book Experimental Investigation of Ice Accretion Effects on a Swept Wing written by and published by . This book was released on 2005 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: An experimental investigation was conducted to study the effects of 2-, 5-, 10-, and 22.5-min ice accretions on the aerodynamic performance of a swept finite wing. The ice shapes tested included castings of ice accretions obtained from icing tests at the NASA Glenn Icing Research Tunnel (IRT) and simulated ice shapes obtained with the LEWICE 2.0 ice accretion code. The conditions used for the icing tests were selected to provide five glaze ice shapes with complete and incomplete scallop features and a small rime ice shape.
Author : Stephanie Chen Camello
Publisher :
ISBN 13 :
Total Pages : 104 pages
Book Rating : 4.:/5 (1 download)
Download or read book Effect of Ice Accretion Simulation Fidelity on Low-reynolds Number Swept-wing Aerodynamic Performance written by Stephanie Chen Camello and published by . This book was released on 2017 with total page 104 pages. Available in PDF, EPUB and Kindle. Book excerpt: Understanding how ice accretion affects the aerodynamics of swept-wing aircraft is a vital part of aircraft design, fabrication, and testing. Previous work focused on iced airfoil aerodynamics which did not take into account the geometric complexities of a swept wing. A method to create a series of full-span artificial ice shapes for a swept wing was developed so aerodynamic testing could be performed for a variety of ice shapes. Due to icing scaling limitations and icing wind tunnel size restrictions, ice accretions could not be produced for the full span of a swept wing. Instead, ice was accreted for small sections of the leading edge, laser scanned, and digitally manipulated to manufacture a full-span artificial ice shape. These full-span artificial ice shapes were used in low Reynolds number experimental testing. Wind tunnel testing was performed at Reynolds numbers of 1.8 x 106, 1.6 x 106, and 2.4 x 106 and Mach numbers of 0.09, 0.18, and 0.27, respectively, for model angles of attack ranging from -6 to 16. The swept-wing model used was a scaled version of the NASA Common Research Model wing, which is representative of modern commercial airliner. Force balance, oil-flow visualization, fluorescent mini-tuft visualization, and surface pressure data were collected for 18 leading-edge configurations including 7 high-fidelity ice shapes, 10 low-fidelity versions of these ice shapes, and the clean leading edge without artificial ice shapes present. The goal of this study is to determine how each artificial ice shape configuration affects the aerodynamic performance of the swept-wing model and the role ice shape simulation fidelity plays.
Author : Jeff M. Diebold
Publisher :
ISBN 13 :
Total Pages : 60 pages
Book Rating : 4.:/5 (14 download)
Download or read book Effect of Ice Accretion on Full-scale Swept Wing Aerodynamic Performance and Control Effects written by Jeff M. Diebold and published by . This book was released on 2018 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Michael Papadakis
Publisher :
ISBN 13 :
Total Pages : pages
Book Rating : 4.:/5 (11 download)
Download or read book Aerodynamic Performance of a Swept Wing with Ice Accretions written by Michael Papadakis and published by . This book was released on 2003 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Wagdi George Habashi
Publisher : Springer Nature
ISBN 13 : 3031338456
Total Pages : 1278 pages
Book Rating : 4.0/5 (313 download)
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.
Author : Harold E. Addy
Publisher :
ISBN 13 :
Total Pages : 292 pages
Book Rating : 4.:/5 (1 download)
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.
Author : Navdeep Sandhu
Publisher :
ISBN 13 :
Total Pages : 134 pages
Book Rating : 4.:/5 (17 download)
Download or read book Aerodynamics of a Swept Wing with Simulated Scalloped Ice at Low Reynolds Number written by Navdeep Sandhu and published by . This book was released on 2018 with total page 134 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis studied the aerodynamic effects of a single high-fidelity scalloped ice accretion simulation and a low-fidelity simulation of the same shape. These data were compared to the aerodynamics of a clean 8.9% scale CRM65 semispan wing model at a Reynolds number of 1.6×10^6. The clean wing experienced an aggressive, tip-first stall and showed a small, strong leading-edge vortex at lower angles-of-attack while the iced cases showed larger, seemingly weaker leading-edge vortices at similar angles. The size of these vortices is larger for the low-fidelity ice shape. The stall pattern for the iced cases was also tip-first, but more gradual than the clean wing. The high-fidelity ice shape produced streamwise flow features over the upper surface of the wing likely due, in part, to flow moving through gaps that exist in the ice shape geometry that disrupted the formation of the leading-edge vortices. These features are thought to change the aerodynamics of the wing by impacting leading-edge vortex formation and delaying flow separation. These gaps do not exist in the low-fidelity shape, where leading-edge vortices are larger, are apparent at lower angles-of-attack, and flow separation occurs earlier over the wing. The low-fidelity scallop ice shape was non-conservative in its aerodynamic performance penalties compared to the full high-fidelity case.
Author : K. L. Mittal
Publisher : John Wiley & Sons
ISBN 13 : 1119640539
Total Pages : 704 pages
Book Rating : 4.1/5 (196 download)
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.
Author : Brian S. Woodard
Publisher :
ISBN 13 :
Total Pages : 62 pages
Book Rating : 4.:/5 (1 download)
Download or read book Preliminary Testing of Low Reynolds Number Aerodynamics for a Swept Wing with Artificial Ice Roughness written by Brian S. Woodard and published by . This book was released on 2017 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report presents key results of preliminary testing of iced swept-wing aerodynamics at low Reynolds numbers. This investigation is part of a larger collaborative research effort on ice accretion and aerodynamics for swept wings. The testing was conducted in the 7 x 10 ft wind tunnel facility at Wichita State University using a Common Research Model-based semispan model. The model was constructed with a removable leading edge (RLE) so that artificial ice shapes could be readily attached. Rapid prototyping manufacturing was used to simulate full-span ice roughness with hemispherical elements of approximately 0.01 in. The traditional method of ice roughness simulation--addition of grit roughness to the clean wing--was also performed for comparison. A RLE of a horn ice shape, determined using computational fluid dynamics, was also tested. Several splitter plate configurations for isolating the wing from the wind tunnel's floor boundary layer were tested, and a circular splitter plate and streamlined shroud were selected as the baseline configuration for this and future tests. The effects of Reynolds number and Mach number on the clean wing were investigated, but only limited conclusions could be drawn without further testing in a facility where Reynolds number and Mach number can be controlled independently. The Reynolds number and Mach number effects were small compared to the overall aerodynamic effect of the ice versus the clean-wing performance. Results from the iced wing configurations showed that defining an unambiguous stalling angle was difficult using only performance-based parameters, and general criteria need to be developed for future testing. The aerodynamic performance differences between the various roughness sizes and applications types were small, especially at low angles of attack. However, spanwise roughness variations produced relatively significant aerodynamic differences between cases, indicating that artificial ice shapes must be carefully designed to avoid inadvertently affecting the flowfield. The surface oil flow visualization results supported that conclusion by highlighting the aerodynamic effects of the spanwise discontinuities.
Author :
Publisher :
ISBN 13 :
Total Pages : 240 pages
Book Rating : 4.:/5 (317 download)
Download or read book An Experimental Study of the Aerodynamics of a Swept and Unswept Semispan Wing with a Simulated Glaze Ice Accretion written by and published by . This book was released on 1994 with total page 240 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : C. S. Bidwell
Publisher :
ISBN 13 :
Total Pages : 26 pages
Book Rating : 4.:/5 (317 download)
Download or read book Ice Accretion Prediction for a Typical Commercial Transport Aircraft written by C. S. Bidwell and published by . This book was released on 1993 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Author : Dmitry Yu. Strelets
Publisher : Springer Nature
ISBN 13 : 9811990107
Total Pages : 220 pages
Book Rating : 4.8/5 (119 download)
Download or read book Recent Developments in High-Speed Transport written by Dmitry Yu. Strelets and published by Springer Nature. This book was released on 2023-04-10 with total page 220 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book describes the basic concepts and various aspects of creating a new generation supersonic passenger aircraft. It presents the fundamental and applied problems essential to the design of aircraft of this type. Solutions to the problems of reducing supersonic boom, environmental noise, harmful emissions, increasing the efficiency of propulsion systems, and the general concept and certification are described. The development of high-speed transport, as a means of improving mobility and quality of life, is a relevant task for research teams in many countries. The publication includes selected articles from the 1st International Conference on High-Speed Transport Development, organized by the Moscow Aviation Institute (National Research University) which, by participating in many research and commercial projects (including international ones) has accumulated a lot of competencies sufficient to act as a platform for knowledge exchange in this field. The target audience of this book are researchers working on high-speed transport, postgraduate students, as well as any individuals willing to broaden their knowledge of high-speed aircraft.
