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Genre | : Aerospace engineering |
Author | : |
Publisher | : |
Release | : 1993 |
File | : 108 Pages |
ISBN-13 | : NASA:31769000522014 |
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Genre | : Aerospace engineering |
Author | : |
Publisher | : |
Release | : 1993 |
File | : 108 Pages |
ISBN-13 | : NASA:31769000522014 |
Currently, the use of computational fluid dynamics (CFD) solutions is considered as the state-of-the-art in the modeling of unsteady nonlinear flow physics and offers an early and improved understanding of air vehicle aerodynamics and stability and control characteristics. This Special Issue covers recent computational efforts on simulation of aerospace vehicles including fighter aircraft, rotorcraft, propeller driven vehicles, unmanned vehicle, projectiles, and air drop configurations. The complex flow physics of these configurations pose significant challenges in CFD modeling. Some of these challenges include prediction of vortical flows and shock waves, rapid maneuvering aircraft with fast moving control surfaces, and interactions between propellers and wing, fluid and structure, boundary layer and shock waves. Additional topic of interest in this Special Issue is the use of CFD tools in aircraft design and flight mechanics. The problem with these applications is the computational cost involved, particularly if this is viewed as a brute-force calculation of vehicle’s aerodynamics through its flight envelope. To make progress in routinely using of CFD in aircraft design, methods based on sampling, model updating and system identification should be considered.
Genre | : Technology & Engineering |
Author | : Mehdi Ghoreyshi |
Publisher | : MDPI |
Release | : 2019-03-08 |
File | : 294 Pages |
ISBN-13 | : 9783038976103 |
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.
Genre | : Aeronautics |
Author | : |
Publisher | : |
Release | : 1994 |
File | : 1028 Pages |
ISBN-13 | : UOM:39015030249083 |
Genre | : Airplanes |
Author | : |
Publisher | : |
Release | : 1958 |
File | : 18 Pages |
ISBN-13 | : UOM:39015086507277 |
"Early fixed wing research demonstrated that potential cost and training benefits could be derived from simulation-augmented primary flight training. Unfortunately, more recent research in this area has been the exception, not the rule. This is especially true in the case of rotary wing (helicopter) aircrew training research. The present report reviewed the research literature on military aviation transfer of training (TOT) research, and examined the current U.S. Army Initial Entry Rotary Wing (IERW) Program of Instruction. An in-depth review was also conducted on the recent IERW simulation research performed by the Army Research Institute (ARI) Rotary Wing Aviation Research Unit (RWARU). Review of the IERW TOT research showed that a combination of synthetic flight simulation and criterion-based training had the potential for saving training time and costs in the aircraft. Adaptive training aids such as the ARI RWARU Intelligent Flight Trainer, also showed promise. A research program, focusing on revising the current IERW program to optimize the use of simulation, was proposed. This program would include (a) criterion-based instructional strategies, (b) low cost simulation, and (c) investigation of different combinations of simulator vs. aircraft training events, in order to determine the optimal simulator/aircraft training mix."--DTIC.
Genre | : Flight crews |
Author | : John E. Stewart |
Publisher | : |
Release | : 1999 |
File | : 60 Pages |
ISBN-13 | : UVA:X004432064 |
Genre | : Aeronautics |
Author | : |
Publisher | : |
Release | : 1992 |
File | : 548 Pages |
ISBN-13 | : MINN:31951P002977076 |
This comprehensive book examines a range of examples, prepared by a diverse group of academic and industry practitioners, which demonstrate how cloud-based simulation is being extensively used across many disciplines, including cyber-physical systems engineering. This book is a compendium of the state of the art in cloud-based simulation that instructors can use to inform the next generation. It highlights the underlying infrastructure, modeling paradigms, and simulation methodologies that can be brought to bear to develop the next generation of systems for a highly connected society. Such systems, aptly termed cyber-physical systems (CPS), are now widely used in e.g. transportation systems, smart grids, connected vehicles, industrial production systems, healthcare, education, and defense. Modeling and simulation (M&S), along with big data technologies, are at the forefront of complex systems engineering research. The disciplines of cloud-based simulation and CPS engineering are evolving at a rapid pace, but are not optimally supporting each other’s advancement. This book brings together these two communities, which already serve multi-disciplinary applications. It provides an overview of the simulation technologies landscape, and of infrastructure pertaining to the use of cloud-based environments for CPS engineering. It covers the engineering, design, and application of cloud simulation technologies and infrastructures applicable for CPS engineering. The contributions share valuable lessons learned from developing real-time embedded and robotic systems deployed through cloud-based infrastructures for application in CPS engineering and IoT-enabled society. The coverage incorporates cloud-based M&S as a medium for facilitating CPS engineering and governance, and elaborates on available cloud-based M&S technologies and their impacts on specific aspects of CPS engineering.
Genre | : Computers |
Author | : José L. Risco Martín |
Publisher | : Springer Nature |
Release | : 2020-11-07 |
File | : 451 Pages |
ISBN-13 | : 9783030519094 |
Additive Manufacturing of Aerospace Composite Structures: Fabrication and Reliability introduces the reader to the current state of technologies involved in processing and design of polymer-reinforced fiber composites using additive manufacturing's automated fiber placement methods, through ten seminal SAE International papers. Currently, the material layup strategy in terms of process selection and manufacturability is usually not prioritized in the design phase. Engineers do not have a good way to see how their design choices can affect the manufacturing process beyond their initial structural-level considerations. The result is typically a large amount of experimental testing necessary to qualify the materials and structures typified in the classical building-block approach. Such an environment makes mistakes difficult to solve and, should redesign be required, obtaining reliable information is hard to piece together. Additive Manufacturing of Aerospace Composite Structures: Fabrication and Reliability approaches the question of quality in these structures from a hands-on, solution-driven perspective.
Genre | : Technology & Engineering |
Author | : Rani Elhajjar |
Publisher | : SAE International |
Release | : 2017-05-20 |
File | : 94 Pages |
ISBN-13 | : 9780768084054 |
This volume contains nearly all the papers presented at the AMS-IMS-SIAM Joint Summer Research Conference on Biofluiddynamics, held in July 1991, at the University of Washington, Seattle. The lead paper, by Sir James Lighthill, presents a comprehensive review of external flows in biology. The other papers on external and internal flows illuminate developments in the protean field of biofluiddynamics from diverse viewpoints, reflecting the field's multidisciplinary nature. For this reason, the work should be useful to mathematicians, biologists, engineers, physiologists, cardiologists and oceanographers alike. The papers highlight a number of problems that have remained largely unexplored due to the difficulty of addressing biological flow motions, which are often governed by large systems of nonlinear differential equations and involve complex geometries. However, recent advances in computational fluid dynamics have expanded opportunities to solve such problems. These developments have increased interest in areas such as the mechanisms of blood and air flow in humans, the dynamic ecology of the oceans, animal swimming and flight, to name a few.
Genre | : Mathematics |
Author | : Angela Y. Cheer |
Publisher | : American Mathematical Soc. |
Release | : 1993 |
File | : 602 Pages |
ISBN-13 | : 9780821851487 |
This book focuses on nano-biomedical engineering, the most important key technology in the world in the 21st century. It covers virtually everything within current and future research and the development of biomedical engineering. It follows four groups within the field, namely nano-biomechanics, nano-bioimaging, nano-biodevices, and nano-biointervention.
Genre | : Medical |
Author | : Takami Yamaguchi |
Publisher | : World Scientific |
Release | : 2012 |
File | : 678 Pages |
ISBN-13 | : 9781848169050 |