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Book An Experimental and Numerical Study of Icing Effects on the Performance and Controllability of a Twin Engine Aircraft

Download or read book An Experimental and Numerical Study of Icing Effects on the Performance and Controllability of a Twin Engine Aircraft written by Andrew L. Reehorst and published by . This book was released on 1999 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book AN EXPERIMENTAL AND NUMERICAL STUDY OF ICING EFFECTS ON THE PERFORMANCE AND CONTROLLABILITY OF A TWIN ENGINE AIRCRAFT    NASA TM 1999 20889    MAR  1  1999

Download or read book AN EXPERIMENTAL AND NUMERICAL STUDY OF ICING EFFECTS ON THE PERFORMANCE AND CONTROLLABILITY OF A TWIN ENGINE AIRCRAFT NASA TM 1999 20889 MAR 1 1999 written by United States. National Aeronautics and Space Administration and published by . This book was released on 1999* with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book NASA s Contributions to Aeronautics  Flight environment  operations  flight testing  and research

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.

Book International Aerospace Abstracts

Download or read book International Aerospace Abstracts written by and published by . This book was released on 1999 with total page 1016 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Institute for Computational Mechanics in Propulsion  ICOMP

Download or read book Institute for Computational Mechanics in Propulsion ICOMP written by and published by . This book was released on 2001 with total page 42 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Handbook of Numerical Simulation of In Flight Icing

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.

Book Experimental and Numerical Investigation of Hot Air Anti icing Systems

Download or read book Experimental and Numerical Investigation of Hot Air Anti icing Systems written by See-Ho Wong and published by . This book was released on 2004 with total page 544 pages. Available in PDF, EPUB and Kindle. Book excerpt: [Author's abstract] The prevention of ice on aircraft components is critical to aircraft performance and operation. Even small amounts of ice can present a major hazard to flight safety. A hot-air anti-icing system uses hot air extracted from the engine compressor bleed to prevent or minimize ice buildup on protected surfaces. The fact that anti-icing devices are operated during take-off and landing when maximum power is required, makes the power loss due to air bleeding even more critical. This necessitates a better understanding of the complex aero-thermal phenomena governing the efficiency of an anti-icing piccolo tube system used to prevent ice formation on the leading edge of critical aerodynamic surface of aircraft. This is to maximize system performance and minimize the fuel consumption penalty from hot air bled from the engine. Experimental and computational studies were performed on various wing anti- icing systems that use hot air bled from the engine compressor through piccolo tube. Experiments were conducted in a bleed air laboratory of a local general aviation company to evaluate the heat transfer performance of an inner-liner and a D-duct hot air anti-ice system. With the experiments, key design and performance parameters of the anti-icing systems were identified. Surface temperature distributions were measured in the experiments and compared with results from a commercial heat transfer software package. A robust Computational Fluid Dynamics (CFD) package was required for providing the numerical simulation results, because computation of heat t ransfer coefficient is a complex task which becomes even more complex for multiple jets impinging on a curved surface of the interior of a wing leading edge. Although empirical correlations and analogies can be used to describe the heat contribution phenomena, they can easily fail under these conditions. Thus only a full conjugate Navier-Stokes analysis of internal and external flow, coupled with a suitable structural code to solve the conductive problem in the wing solid wall, can yield a plausible prediction of the heat transfer rates, and give helpful insight in the details of the phenomena. After the accuracy of this commercial package was verified with experimental data, methods for enhancing the performance of current bleed air anti-icing leading edge designs were investigated numerically. The performance of several design modifications were evaluated experimentally with a modified hot air system in the bleed air laboratory. It was concluded from this investigation that the inner-liner configuration performed better than the D-duct in term of skin temperature performance. The performance of the inner-liner configuration could be further improved by optimizing piccolo design parameters which included the total number of piccolo holes, hole pattern and piccolo hole circumferential position. In general, high system performance was associated with chocked piccolo jet flow. Finally, CFD was able to predict trends and even to some extent the magnitudes of performance of these hot air anti-icing systems.

Book Scientific and Technical Aerospace Reports

Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 704 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Ice Accretions and Icing Effects for Modern Airfoils

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.

Book Aeronautical Engineering

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:

Book NASA Technical Memorandum

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:

Book Applied Mechanics Reviews

Download or read book Applied Mechanics Reviews written by and published by . This book was released on 1986 with total page 692 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Book Japanese Science and Technology

Download or read book Japanese Science and Technology written by and published by . This book was released on 1986 with total page 724 pages. Available in PDF, EPUB and Kindle. Book excerpt: