Aeronautical Engineering: A continuing bibliography, 1982 cumulative index

This bibliography is a cumulative index to the abstracts contained in NASA SP-7037 (145) through NASA SP-7037 (156) of Aeronautical Engineering: A Continuing Bibliography. NASA SP-7037 and its supplements have been compiled through the cooperative efforts of the American Institute of Aeronautics and Astronautics (AIAA) and the National Aeronautics and Space Administration (NASA). This cumulative index includes subject, personal author, corporate source, contract, and report number indexes

A cumulative index to Aeronautical Engineering: A special bibliography, January 1976

This publication is a cumulative index to the abstracts contained in NASA SP-7037 (54) through NASA SP-7037 (65) of Aeronautical Engineering: A Special Bibliography. NASA SP-7037 and its supplements have been compiled through the cooperative efforts of the American Institute of Aeronautics and Astronautics (AIAA) and the National Aeronautics and Space Administration (NASA). This cumulative index includes subject, personal author, corporate source, contract, and report number indexes

Aeronautical engineering, a continuing bibliography with indexes

This bibliography lists 419 reports, articles and other documents introduced into the NASA scientific and technical information system in March 1985

Effect of lean-burn combustor outlet flows on nozzle guide vane aerothermal performance: an experimental and computational study

Regulatory pressures aimed at reducing NOx and particulate emissions from civil aviation have seen engine manufacturers gravitate towards lean-burn combustor architectures. Compared to their conventional rich-burn counterparts, lean-burn combustors generate significant swirl and alter the temperature distribution at the interface with the high-pressure turbine. We examine the impact of lean-burn on the aerothermal performance of high-pressure nozzle guide vanes (NGV), leveraging engine-scale experiments and simulations. Experiments were conducted in the Engine Component AeroThermal facility—an annular NGV test facility designed to operate at engine-matched conditions of Mach number, Reynolds number, and coolant flow. Two test cases were considered: a reference case with uniform inflow, and a lean-burn case, which used a combustor simulator to generate representative inlet profiles of swirl and temperature distortion. Mean-flow and turbulence conditions upstream of the NGV were characterized in detail using a purpose-built traverse system. These served as reference conditions for measurements of flow angle, kinetic energy loss, and total temperature taken downstream of the NGV, and were used as inlet boundary conditions in complementary simulations. In a first instance, turbulence model sensitivities were explored, using the experimental dataset with uniform inflow as a benchmark. Simulations based on the k–ω shear stress transport model captured radial distributions of whirl angle, loss, and non-dimensional temperature reasonably well, but failed to accurately predict mixing rates of the aerodynamic and thermal wakes. Undermixing is a common problem in simulations of flows where significant unsteady vortex shedding occurs in reality, but is not modeled due to steady-state assumptions. For the current geometry and inlet conditions, the baseline k–ω algebraic Reynolds stress model had enhanced free shear mixing, resulting in a slightly better overall collapse with experimental data. In a second instance, the effect of lean-burn was studied. Compared to the uniform inflow reference case, lean-burn caused significant residual swirl in the downstream flow, and amplified integral loss slightly. Changes in the downstream thermal field were primarily driven by the upstream temperature profile, with a secondary influence from swirl-induced redistribution of vane coolant. Coolant redistribution was especially pronounced on the vane pressure side, where uneven film coverage led to significant deterioration of cooling performance. This thesis represents a comprehensive analysis of the impact of lean-burn on NGV performance, gives insight into the robustness of commonly-used simulation tools, and highlights areas for redesign to optimize for lean-burn profiles

Energy: A continuing bibliography with indexes

This bibliography lists 1169 reports, articles, and other documents introduced into the NASA scientific and technical information system from January 1, 1983 through March 31, 1983

Proceedings of the 8th International Conference EEMODS'2013 Energy Efficiency in Motor Driven Systems

This book contains the papers presented at the eighth international conference on Energy Efficiency in Motor Driven Systems EEMODS 2013 EEMODS 2013 was organised in Rio de Janeiro, Brasil from 28 to 30 October 2013. This major international conference, which was previously been staged in Lisbon (1996), London (1999), Treviso (2002), Heidelberg (2005), Beijing (2007), Nantes (2009) and Washington DC (2011) has been very successful in attracting an international and distinguished audience, representing a wide variety of stakeholders in policy implementation and development, manufacturing and promotion of energy-efficient motor systems, including key policy makers, equipment manufacturers, academia and end-users. Potential readers who may benefit from this book include researchers, engineers, policymakers, energy agencies, electric utilities, and all those who can influence the design, selection, application, and operation of electrical motor driven systems.JRC.F.7-Renewables and Energy Efficienc

Social work with airports passengers

Social work at the airport is in to offer to passengers social services. The main methodological position is that people are under stress, which characterized by a particular set of characteristics in appearance and behavior. In such circumstances passenger attracts in his actions some attention. Only person whom he trusts can help him with the documents or psychologically

Program director`s report for the Office of Health and Environmental Research

LBNL performs basic and applied research and develops technologies in support of the Department of Energy Office of Health and Environmental Research`s mission to explore and mitigate the long-term health and environmental consequences of energy use and to advance solutions to major medical challenges. The ability of the Laboratory to engage in this mission depends upon the strength of its core competencies. In addition, there are several key capabilities that are crosscutting, or underlie, many of the core competencies. They are: bioscience and biotechnology; environmental assessment and remediation; advanced detector systems; materials characterization and synthesis; chemical dynamics, catalysis, and surface science; advanced technologies for energy supply and energy efficiency; particle and photon beams; national research facilities; computation and information management; engineering design and fabrication technologies; and education of future scientists and engineers. Research in progress and major accomplishments are summarized for projects in analytical technology; environmental research; health effects; molecular carcinogenesis; general life sciences; human genome project; medical applications; and imaging of E-binding proteins