Computational Analysis Of Circulation Control Airfoils
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Computational Analysis Of Circulation Control Airfoils
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Author : Gregory Zar McGowan
language : en
Publisher:
Release Date : 2004
Computational Analysis Of Circulation Control Airfoils written by Gregory Zar McGowan and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.
Keywords: Circulation Control, airfoils, laminar flow.
Computational Analysis Of Circulation Control Airfoils
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Author :
language : en
Publisher:
Release Date : 2004
Computational Analysis Of Circulation Control Airfoils written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2004 with categories.
Current projections for future aircraft concepts call for stringent requirements on high-lift and low cruise-drag. The purpose of this study is to examine the use of circulation control, through trailing edge blowing, to meet both requirements. This study was conducted in two stages: (i) validation of computational fluid dynamic procedures on a general aviation circulation control airfoil and (ii) a study of an adaptive circulation control airfoil for controlling lift coefficients in the low-drag range. In an effort to validate computational fluid dynamics procedures for calculating flows around circulation control airfoils, the commercial flow solver FLUENT was utilized to study the flow around a general aviation circulation control airfoil. The results were compared to experimental and computational fluid dynamics results conducted at the NASA Langley Research Center. This effort was conducted in three stages: (i) a comparison of the results for free-air conditions to those from previously conducted experiments, (ii) a study of wind-tunnel wall effects, and (iii) a study of the stagnation-point behavior. In general, the trends in the results from the current work agreed well with those from experiments, some differences in magnitude were present between computations and experiments. For the cases examined, FLUENT computations showed no noticeable effect on the results due to the presence of wind-tunnel walls. The study also showed that the leading-edge stagnation point moves in a systematic manner with changes to the jet blowing coefficient and angle of attack, indicating that this location can be sensed for use in closed-loop control of such airfoil flows. The focus of the second part of the study was to examine the use of adaptive circulation control on a natural laminar flow airfoil for controlling the lift coefficient of the low-drag range. In this effort, adaptive circulation control was achieved through blowing over a small mechanical flap that can be deflec.
Recent Advances In Fluid Dynamics With Environmental Applications
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Author : Jaime Klapp
language : en
Publisher: Springer
Release Date : 2016-06-25
Recent Advances In Fluid Dynamics With Environmental Applications written by Jaime Klapp and has been published by Springer this book supported file pdf, txt, epub, kindle and other format this book has been release on 2016-06-25 with Science categories.
This book gathers selected contributions presented at the Enzo Levi and XX Annual Meeting of the Fluid Dynamic Division of the Mexican Physical Society in 2014. The individual papers explore recent advances in experimental and theoretical fluid dynamics and are suitable for use in both teaching and research. The fluid dynamics applications covered include multiphase flows, convection, diffusion, heat transfer, rheology, granular materials, viscous flows, porous media flows, geophysics and astrophysics. The contributions, some of which are introductory and avoid the use of complicated mathematics, are suitable for fourth-year undergraduate and graduate students. Accordingly, the book is of immense benefit to these students, as well as to scientists in the fields of physics, chemistry and engineering with an interest in fluid dynamics from experimental and theoretical points of view.
Computational Analysis Of A Two Slot Circulation Control Airfoil
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Author : Donald Joseph Ferguson (CAPT, USAF.)
language : en
Publisher:
Release Date : 1989
Computational Analysis Of A Two Slot Circulation Control Airfoil written by Donald Joseph Ferguson (CAPT, USAF.) and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with Aerofoils categories.
Scientific And Technical Aerospace Reports
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Author :
language : en
Publisher:
Release Date : 1995
Scientific And Technical Aerospace Reports written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1995 with Aeronautics categories.
Research Developments In Sustainable Aviation
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Author : T. Hikmet Karakoc
language : en
Publisher: Springer Nature
Release Date : 2023-09-29
Research Developments In Sustainable Aviation written by T. Hikmet Karakoc and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-09-29 with Technology & Engineering categories.
Sustainable aviation is a long-term strategy aimed at providing innovative solutions to the challenges facing the aviation industry. The International Symposium on Sustainable Aviation is a multi-disciplinary symposium that presents research on current sustainability-based issues and future trends in the field of aviation from an economic, social, and environmental perspective. The conference provides a platform offering insights on a broad range of current issues in aviation, such as improving aircraft fuel efficiency, fostering the use of biofuels, minimizing environmental impact, mitigating GHG emissions, and reducing engine and airframe noise. ISSA allows researchers, scientists, engineers, practitioners, policymakers, and students to exchange information, present new technologies and developments, and discuss future direction, strategies, and priorities in aviation and sustainability.
Computational Analysis Of A Two Slot Circulation Control Airfoil
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Author : Donald J. Ferguson
language : en
Publisher:
Release Date : 1989
Computational Analysis Of A Two Slot Circulation Control Airfoil written by Donald J. Ferguson and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1989 with categories.
A two-slot circulation control airfoil was analyzed using the two-dimensional, compressible, mass-averaged, Navier-Stokes equations. The implicit Beam-Warming approximate factorization technique was used to calculate airfoil characteristics for a flight Mach number of 0.3 and a reynolds number near 3 million. The results were then compared to a previous one-slot solution. An existing circulation control airfoil was modified to include a second slot. Different blowing rates were then applied to each slot in various combinations. The lift generated for a given total blowing momentum for the two-slot airfoil was nearly identical to that for a single-slot airfoil when the lowest blowing rate was applied to the first slot. Although the lift per unit blowing momentum did not increase over the single-slot case, the maximum lift coefficient was increased due to the increased momentum available from the additional slot. Separation angle increased when a small amount of blowing was applied to the first slot, and additional blowing applied to the second slot. The airfoil moment followed the same trend as the single slot, and was less dependent on which the flow was applied. Due to the lack if experimental data, and the difficulty in modeling drag for the circulation control airfoil, it is difficult to compare drag. Keywords: Theses. (KR).
Computational And Experimental Simulations In Engineering
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Author : Shaofan Li
language : en
Publisher: Springer Nature
Release Date : 2023-12-04
Computational And Experimental Simulations In Engineering written by Shaofan Li and has been published by Springer Nature this book supported file pdf, txt, epub, kindle and other format this book has been release on 2023-12-04 with Technology & Engineering categories.
This book gathers the latest advances, innovations, and applications in the field of computational engineering, as presented by leading international researchers and engineers at the 29th International Conference on Computational & Experimental Engineering and Sciences (ICCES), held in Shenzhen, China on May 26-29, 2023. ICCES covers all aspects of applied sciences and engineering: theoretical, analytical, computational, and experimental studies and solutions of problems in the physical, chemical, biological, mechanical, electrical, and mathematical sciences. As such, the book discusses highly diverse topics, including composites; bioengineering & biomechanics; geotechnical engineering; offshore & arctic engineering; multi-scale & multi-physics fluid engineering; structural integrity & longevity; materials design & simulation; and computer modeling methods in engineering. The contributions, which were selected by means of a rigorous international peer-review process, highlight numerousexciting ideas that will spur novel research directions and foster multidisciplinary collaborations.
Aeronautical Engineering
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Author :
language : en
Publisher:
Release Date : 1991
Aeronautical Engineering written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1991 with Aeronautics categories.
Applied Mechanics Reviews
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Author :
language : en
Publisher:
Release Date : 1980
Applied Mechanics Reviews written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1980 with Mechanics, Applied categories.