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Showing 1 to 6 of 6 for “"High-lift Devices"”.
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Investigating the impact of coupled high-lift devices on natural laminar flow airfoils
Submission original under an indefinite embargo labeled 'Open Access'. The submission was exported from vireo on 2023-09-01 without embargo terms
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A Comparative Study of the Low Speed Performance of Two Fixed Planforms versus a Variable Geometry Planform for a Supersonic Business Jet
<p>A numerical investigation of the effects of high lift devices on the low-speed performance of a generic swept wing and a delta wing was conducted. The two fixed planforms were initially sized to achieve the same high speed performance as the baseline variable geometry wing. Following a review of …
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Influence of low-speed aerodynamic performance on airport community noise
… predicting a drag polar, drag as a function of lift, to within one-percent. It also determines the changes of the drag polar due to high-lift devices, both slat and flap deployment, to within about three-percent. In addition, the method contains correlations to predict the variations of lift …
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Active Flow Control of a Three-Element Airfoil in Unbounded Flow and in Ground Effect
<p>Multi-element high lift devices are used in aircraft wings to have higher lift at low speed during take-off and landing. 30P30N is a three-element airfoil developed by NASA/McDonnell Douglas for which high quality flow field data is available. As a result, it has been a subject of many …
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A Quantitative Assessment of Advanced Take-off Trajectories for Supersonic Transport Noise Reduction
… thrust and improved aerodynamic efficiency at higher take-off speeds. These novel trajectories use (i) automatic continuous control of thrust and high-lift devices, (ii) increased take-off speed, and (iii) reduced cut-back altitude, compared to conventional trajectories currently used for …
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Numerical investigation of slat noise attenuation using acoustic liners
Noise generated by high-lift devices such as slats on a wing is a major contributor to the overall airframe noise during the landing approach of a commercial aircraft. In this work the concept of attenuating slat noise using absorptive acoustic liners in the slat/main element gap is explored using …