Results 11 to 20 of about 41,222 (159)

Study on Aerodynamic Shape Optimization for Wing of Business Jet

open access: yesHangkong gongcheng jinzhan, 2022
With the development of world economy and trade,the medium business jets are more favored by customers. In order to further improve the general aerodynamic performance of high-speed turbofan business jet,the optimization methods based on the full ...
MA Xiaoyong   +6 more
doaj   +1 more source

Multi-objective aerodynamic optimization of the exterior shape of tall buildings with trilateral cross-section [PDF]

open access: yesJournal of Rehabilitation in Civil Engineering, 2022
Wind-induced loads are largely dependent upon the exterior shape of buildings, and one highly effective procedure to mitigate them is to apply aerodynamic shape modifications in the aerodynamic optimization procedure (AOP).
Mehdi Noormohamadian, Eysa Salajegheh
doaj   +1 more source

Non-parametric Aerodynamic Shape Optimization [PDF]

open access: yes, 2011
Numerical schemes for large scale shape optimization are considered. Exploiting the structure of shape optimization problems is shown to lead to very efficient optimization methods based on non-parametric surface gradients in Hadamard form. The resulting loss of regularity is treated using higher-order shape Newton methods where the shape Hessians are ...
Gauger, Nicolas   +3 more
openaire   +2 more sources

Optimization and Design of a Flexible Droop-Nose Leading-Edge Morphing Wing Based on a Novel Black Widow Optimization Algorithm—Part I

open access: yesDesigns, 2022
An aerodynamic optimization for a Droop-Nose Leading-Edge (DNLE) morphing of a well-known UAV, the UAS-S45, is proposed, using a novel Black Widow Optimization (BWO) algorithm.
Musavir Bashir   +3 more
doaj   +1 more source

Research on the Rapid Aerodynamic Shape Optimization of Canards of Gliding Guided Projectile [PDF]

open access: yesHangkong bingqi, 2021
In order to improve the accuracy of calculation, it is often necessary to calculate the aerodynamic parameters of the projectile iteratively through computational fluid dynamics simulation, so the optimization efficiency is low.
Zhao Xuan, Chang Sijiang, Ni Yi
doaj   +1 more source

High-dimensional aerodynamic data modeling using a machine learning method based on a convolutional neural network

open access: yesAdvances in Aerodynamics, 2022
Modeling high-dimensional aerodynamic data presents a significant challenge in aero-loads prediction, aerodynamic shape optimization, flight control, and simulation.
Bo-Wen Zan   +4 more
doaj   +1 more source

Multi-Objective Aerodynamic Optimization of a High-Speed Train Head Shape Based on an Optimal Kriging Model [PDF]

open access: yesJournal of Applied Fluid Mechanics, 2022
An optimal Kriging surrogate model based on a 5-fold cross-validation method and improved artificial fish swarm optimization is developed for improving the aerodynamic optimization efficiency of a high-speed train running in the open air.
Y. Yang, Z. He, Z. Shi, X. H. Xiong
doaj   +1 more source

Effects of Static Stability Margin on Aerodynamic Design Optimization of Truss-Braced Wing Aircraft

open access: yesAerospace, 2023
Currently, the aviation industry is facing an oil and energy crisis and is contributing much more greenhouse gas emissions to the environment. Aircraft design approaches, such as aerodynamic shape optimization, new configuration concepts, and active ...
Li Li   +3 more
doaj   +1 more source

Rapid Aerodynamic Shape Optimization With Payload Size Constraints for Hypersonic Vehicle

open access: yesIEEE Access, 2019
Nowadays, aerodynamic shape optimization of the hypersonic vehicle is mostly optimized for local details such as the wing. In the overall shape optimization, the conceptual design of the vehicle is more common, in which the shape is described in fewer ...
Wuyu Peng, Zhiwei Feng, Tao Yang
doaj   +1 more source

Optimal Design of Three-Dimensional Circular-to-Rectangular Transition Nozzle Based on Data Dimensionality Reduction

open access: yesEnergies, 2022
The parametric representation and aerodynamic shape optimization of a three-dimensional circular-to-rectangular transition nozzle designed and built using control lines distributed along the circumferential direction were investigated in this study.
Haoqi Yang   +4 more
doaj   +1 more source

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