Author: Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 704
Book Description
Scientific and Technical Aerospace Reports
Author: Applied mechanics reviews
Author: A Selection of Test Cases for the Validation of Large-eddy Simulations of Turbulent Flows
Author: Publisher:
ISBN: 9789283610724
Category : Computational fluid dynamics
Languages : en
Pages : 198
Book Description
International Aerospace Abstracts
Author: Improved Turbulence Models Based on Large Eddy Simulation of Homogeneous, Incompressible, Turbulent Flows
Author: Stanford University. Thermosciences Division. Thermosciences DivisionPublisher:
ISBN:
Category : Eddies
Languages : en
Pages : 200
Book Description
The physical bases of large eddy simulation and the subgrid scale modeling it employs are studied in some detail. This investigation leads to a new scale-similarity model for the subgrid-scale turbulent Reynolds stresses.
Government Reports Announcements & Index
Author: Combustion Noise
Author: Anna SchwarzPublisher: Springer Science & Business Media
ISBN: 3642020380
Category : Technology & Engineering
Languages : en
Pages : 304
Book Description
November, 2008 Anna Schwarz, Johannes Janicka In the last thirty years noise emission has developed into a topic of increasing importance to society and economy. In ?elds such as air, road and rail traf?c, the control of noise emissions and development of associated noise-reduction techno- gies is a central requirement for social acceptance and economical competitiveness. The noise emission of combustion systems is a major part of the task of noise - duction. The following aspects motivate research: • Modern combustion chambers in technical combustion systems with low pol- tion exhausts are 5 - 8 dB louder compared to their predecessors. In the ope- tional state the noise pressure levels achieved can even be 10-15 dB louder. • High capacity torches in the chemical industry are usually placed at ground level because of the reasons of noise emissions instead of being placed at a height suitable for safety and security. • For airplanes the combustion emissions become a more and more important topic. The combustion instability and noise issues are one major obstacle for the introduction of green technologies as lean fuel combustion and premixed burners in aero-engines. The direct and indirect contribution of combustion noise to the overall core noise is still under discussion. However, it is clear that the core noise besides the fan tone will become an important noise source in future aero-engine designs. To further reduce the jet noise, geared ultra high bypass ratio fans are driven by only a few highly loaded turbine stages.
Large Eddy Simulation for Compressible Flows
Author: Eric GarnierPublisher: Springer Science & Business Media
ISBN: 9048128196
Category : Science
Languages : en
Pages : 280
Book Description
This book addresses both the fundamentals and the practical industrial applications of Large Eddy Simulation (LES) in order to bridge the gap between LES research and the growing need to use it in engineering modeling.
Turbulence Modeling for CFD: CD-ROM
Author: David C. WilcoxPublisher:
ISBN: 9781928729082
Category : Fluid dynamics
Languages : en
Pages : 522
Book Description
Aeronautical Engineering
Author: Publisher:
ISBN:
Category : Aeronautics
Languages : en
Pages : 724
Book Description
A selection of annotated references to unclassified reports and journal articles that were introduced into the NASA scientific and technical information system and announced in Scientific and technical aerospace reports (STAR) and International aerospace abstracts (IAA)