New Aerodynamic Studies of an Adaptive Winglet Application on the Regional Jet CRJ700.
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In this article, an adaptive winglet during flight can improve aircraft aerodynamic characteristics of the Bombardier CRJ700 by increasing the lift-to-drag ratio by up to 6.10% and reducing the drag coefficient by 2.65%.Abstract:
This study aims to evaluates how an adaptive winglet during flight can improve aircraft aerodynamic characteristics of the CRJ700. The aircraft geometry was slightly modified to integrate a one-rotation axis adaptive winglet. Aerodynamic characteristics of the new adaptive design were computed using a validated high-fidelity aerodynamic model developed with the open-source code OpenFoam. The aerodynamic model successively uses the two solvers simpleFoam and rhoSimpleFoam based on Reynold Averaged Navier Stokes equations. Characteristics of the adaptive winglet design were studied for 16 flight conditions, representative of climb and cruise usually considered by the CRJ700. The adaptive winglet can increase the lift-to-drag ratio by up to 6.10% and reduce the drag coefficient by up to 2.65%. This study also compared the aerodynamic polar and pitching moment coefficients variations of the Bombardier CRJ700 equipped with an adaptive versus a fixed winglet.read more
Citations
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Status and Perspectives of Commercial Aircraft Morphing
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Performance Improvement of the Regional Jet CRJ700 Aircraft Equipped with Adaptive Winglets
TL;DR: In this paper , the authors analyzed the aerodynamic performance of an aircraft equipped with adaptive winglets compared to a fixed winglet and found that the adaptive winglet can reduce fuel flow of the aircraft by up to 1.99% in cruise and up to 128.11 s in climb segments.
Proceedings ArticleDOI
Aeroelastic Analysis of Actuated Adaptive Wingtips Based on Pressure-Actuated Cellular Structures
TL;DR: In this paper , the authors verify the concept of actuated adaptive wingtips through aeroelastic analysis, which is based on pressure-actuated cellular structures (PACS).
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