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Topic

Airfoil

About: Airfoil is a research topic. Over the lifetime, 24696 publications have been published within this topic receiving 337709 citations. The topic is also known as: aerofoil & wing section.


Papers
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Journal ArticleDOI
TL;DR: In this paper, two novel fin configurations based on the configuration of NACA 0020 airfoil fin were proposed to further improve the performance of printed circuit heat exchanger (PCHE).

106 citations

Journal ArticleDOI
01 Jan 2011-Energy
TL;DR: In this article, an optimization procedure is carried out by coupling an in-house optimization library (OPAL (OPtimization ALgorithms)) with an industrial CFD code (ANSYS-Fluent).

106 citations

Journal ArticleDOI
TL;DR: In this paper, the effect of grid resolution and grid quality on aerodynamic drag prediction has been examined in detail and recommendations for improvements in mesh generation technology which have the potential to impact the state-of-the-art of aerodynamic prediction are given.
Abstract: The drag prediction workshop series (DPW), held over the last six years, and sponsored by the AIAA Applied Aerodynamics Committee, has been extremely useful in providing an assessment of the state-of-the-art in computationally based aerodynamic drag prediction. An emerging consensus from the three workshop series has been the identification of spatial discretization errors as a dominant error source in absolute as well as incremental drag prediction. This paper provides an overview of the collective experience from the worksho series regarding the effect of grid-related issues on overall drag prediction accuracy. Examples based on workshop results are used to illustrate the effect of grid resolution and grid quality on drag prediction, and grid convergence behavior is examined in detail. For fully attached flows, various accurate and successful workshop results are demonstrated, while anomalous behavior is identified for a number of cases involving substantial regions of separated flow. Based on collective workshop experiences, recommendations for improvements in mesh generation technology which have the potential to impact the state-of-the-art of aerodynamic drag prediction are given.

106 citations

Proceedings ArticleDOI
23 Apr 2007
TL;DR: In this article, the authors describe flight test results of a mission adaptive compliant wing (MACWing) variable geometry trailing edge flap in conjunction with a natural laminar flow airfoil.
Abstract: This paper describes flight test results of a “Mission Adaptive Compliant Wing” (MACWing) variable geometry trailing edge flap in conjunction with a natural laminar flow airfoil. The MAC-Wing technology provides lightweight, low power, variable geometry reshaping of the upper and lower flap surface with no seams or discontinuities. In this particular program, the airfoil-flap system is optimized to maximize the laminar boundary layer extent over a broad lift coefficient range for endurance aircraft applications. The expanded “laminar bucket” capability allows the endurance aircraft to significantly extend their range (15% or more) by continuously optimizing the wing L/D throughout the mission. The wing was tested at full-scale dynamic pressure, full scale Mach, and reduced-scale Reynolds Numbers on Scaled Composites’ White Knight aircraft. Test results confirmed laminar flow regime up to approximately 60% chord for much of the lift range. Analysis and test results suggest significant fuel savings, weight savings and a higher control authority. Preliminary drag results, future aerodynamic applications and vehicle performance projections are discussed.

106 citations

Journal ArticleDOI
TL;DR: In this paper, the authors derived the partial differential equation of motion for the transverse deflection of a rotating pre-twisted plate by considering it as a plate of an equivalent rectangular cross-section subjected to a quasi-static load due to a centrifugal force field.

106 citations


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Performance
Metrics
No. of papers in the topic in previous years
YearPapers
20231,083
20221,871
2021923
2020979
20191,097
20181,002