Academic Journal
Gradient-Based Aerodynamic Optimization of an Airfoil with Morphing Leading and Trailing Edges
| العنوان: | Gradient-Based Aerodynamic Optimization of an Airfoil with Morphing Leading and Trailing Edges |
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| المؤلفون: | Zhenkai Zhang, Alessandro De Gaspari, Sergio Ricci, Chen Song, Chao Yang |
| المصدر: | Applied Sciences, Vol 11, Iss 4, p 1929 (2021) |
| بيانات النشر: | MDPI AG, 2021. |
| سنة النشر: | 2021 |
| المجموعة: | LCC:Technology LCC:Engineering (General). Civil engineering (General) LCC:Biology (General) LCC:Physics LCC:Chemistry |
| مصطلحات موضوعية: | morphing, gradient-based aerodynamic optimization, skin length control, Technology, Engineering (General). Civil engineering (General), TA1-2040, Biology (General), QH301-705.5, Physics, QC1-999, Chemistry, QD1-999 |
| الوصف: | This article presents a gradient-based aerodynamic optimization framework and investigates optimum deformations for a transonic airfoil equipped with morphing leading and trailing edges. Specifically, the proposed optimization framework integrates an innovative morphing shape parameterization with a high fidelity Reynolds-averaged Navier–Stokes computational fluid dynamic solver, a hybrid mesh deformation algorithm, and an efficient gradient evaluation method based on continuous adjoint implementation. To achieve a feasible morphing shape, some structural properties of skin and wing-box constraints were introduced into the morphing shape parameterization, which offers skin length control and enables wing-box shape invariance. In this study, the optimum leading and trailing edge deformations with minimization of drag at this cruise stage were searched for using the adjoint-based optimization with a nested feasible morphing procedure, subject to the wing-box, skin length, and airfoil volume constraints. The numerical studies verified the effectiveness of the optimization strategy, and demonstrated the significant aerodynamic performance improvement achieved by using the morphing devices. A lambda shock pattern was observed for the optimized morphing leading edge. That result further indicates the importance of leading edge radius control. |
| نوع الوثيقة: | article |
| وصف الملف: | electronic resource |
| اللغة: | English |
| تدمد: | 2076-3417 |
| Relation: | https://www.mdpi.com/2076-3417/11/4/1929; https://doaj.org/toc/2076-3417 |
| DOI: | 10.3390/app11041929 |
| URL الوصول: | https://doaj.org/article/0dd615ac7a1348d29ec411bd34fa0d35 |
| رقم الانضمام: | edsdoj.0dd615ac7a1348d29ec411bd34fa0d35 |
| قاعدة البيانات: | Directory of Open Access Journals |
Full Text Finder | تدمد: | 20763417 |
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| DOI: | 10.3390/app11041929 |