Results 21 to 30 of about 5,648 (167)

Non-parametric Aerodynamic Shape Optimization [PDF]

, 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, Ilic, Caslav, Schmidt, Stephan, Schulz, Volker   +3 more
openaire   +3 more sources

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

Designs, 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, Simon Longtin-Martel, Ruxandra Mihaela Botez, Tony Wong   +3 more
doaj   +1 more source

An effective approach for robust design optimization of wind turbine airfoils with random aerodynamic variables

Advances in Mechanical Engineering, 2019
The robust design optimization of an airfoil needs to continuously realize the probability-based aerodynamic simulation for various combinations of geometry and wind climate parameters.
Xufang Zhang, Zhenguang Wu, Wei He
doaj   +1 more source

New heuristic algorithms for rolling air frame aerodynamic parameters estimation

Aviation, 2020
In this research, based on heuristic optimization algorithms, three new strategies are developed for Aerodynamic Parameters Estimation (APE) of one pair ON-OFF actuator rolling airframe.
Ayham Mohamad, Jalal Karimi, Alireza Naderi   +2 more
doaj   +1 more source

Research on 3D Design of High-Load Counter-Rotating Compressor Based on Aerodynamic Optimization and CFD Coupling Method

Energies, 2022
In view of the flow instability problem caused by the strong shock wave and secondary flow in the channel of the high-load counter-rotating compressor, this paper adopts the design method of coupling aerodynamic optimization technology and CFD and ...
Tingsong Yan, Huanlong Chen, Jiwei Fang, Peigang Yan   +3 more
doaj   +1 more source

Adjoint Optimization for Vehicle External Aerodynamics

International Journal of Automotive Engineering, 2016
https://www.researchgate.net/publication ...
Georgios K., Karpouzas, Evangelos M., Papoutsis-Kiachagias, Thomas, Schumacher, Eugene de, Villiers, Kyriakos C., Giannakoglou, Carsten, Othmer   +5 more
openaire   +4 more sources

Aerodynamic design of high-lift devices for enhanced low-height takeoff in wing-in-ground effect craft

Applied Ocean Research
Wing-in-ground effect (WIG) craft represents a class of high-performance ship, utilizing ground effect to achieve ultra-low-height flight with an exceptional lift-to-drag ratio.
Yiheng Wang, Wenping Song, Fuyang Ding, Chengpeng Liu, Zhonghua Han, Yajun Shi   +5 more
doaj   +1 more source

Shape Optimization of the Streamlined Train Head for Reducing Aerodynamic Resistance and Noise

Applied Sciences, 2022
Aiming to improve the comprehensive aerodynamic performance of a high-speed train, a multi-objective shape optimization method for a streamlined train head is proposed in this work.
Mengge Yu, Jiali Liu, Wei Huo, Jiye Zhang   +3 more
doaj   +1 more source

Machine Learning Assisted Prediction of Airfoil Lift-to-Drag Characteristics for Mars Helicopter

Aerospace, 2023
The aerodynamic properties of rotor systems operating within low Reynolds number flow field conditions are profoundly influenced by their geometric and flight parameters.
Pengyue Zhao, Xifeng Gao, Bo Zhao, Huan Liu, Jianwei Wu, Zongquan Deng   +5 more
doaj   +1 more source

Aerodynamic and Stealth Integrated Design of DSI Inlet by Surrogate-Based Multi-Objective Optimization with EHVI Infill Criterion

Xibei Gongye Daxue Xuebao, 2019
To deal with the problem of aerodynamic and stealth integrated optimization of DSI inlet, a multi-objective optimization study on aerodynamic and stealth of the DSI inlet is carry out which based on the deformation of the three-dimensional compression ...

doaj   +1 more source