Results 21 to 30 of about 21,634 (177)

Multi-objective optimization of printed circuit heat exchanger with airfoil fins based on the improved PSO-BP neural network and the NSGA-II algorithm

Nuclear Engineering and Technology, 2023
The printed circuit heat exchanger (PCHE) with airfoil fins has the benefits of high compactness, high efficiency and superior heat transfer performance.
Jiabing Wang, Linlang Zeng, Kun Yang
doaj   +1 more source

Quantification of airfoil geometry-induced aerodynamic uncertainties - comparison of approaches [PDF]

, 2016
Uncertainty quantification in aerodynamic simulations calls for efficient numerical methods since it is computationally expensive, especially for the uncertainties caused by random geometry variations which involve a large number of variables. This paper
Litvinenko, Alexander, Liu, Dishi, Schillings, Claudia, Schulz, Volker   +3 more
core   +2 more sources

State of the Art in the Optimisation of Wind Turbine Performance Using CFD [PDF]

, 2019
Wind energy has received increasing attention in recent years due to its sustainability and geographically wide availability. The efficiency of wind energy utilisation highly depends on the performance of wind turbines, which convert the kinetic energy ...
Haghnegahdar, Mohammad Amin, Kolios, Athanasios, Lander, Martin, Mussetta, Marco, Shourangiz-Haghighi, Alireza, Wang, Lin   +5 more
core   +1 more source

Airfoil Optimization of Tiltrotor Aircraft Forward Flight Mode Based on Isight

Hangkong gongcheng jinzhan, 2019
As one of the main development trends of the next generation rotor-crafts, it is of important significance to study the aerodynamic optimization design of its wings for improving the flight performance of tiltrotor aircraft.NACA2412 is employed as the ...
Zhao Guang, He Guoyi, Wang Qi, Luo Yun, Wang Zhen   +4 more
doaj   +1 more source

Aerodynamic Optimization Method for Propeller Airfoil Based on DBO-BP and NSWOA

Aerospace
To address the issues of tedious optimization processes, insufficient fitting accuracy of surrogate models, and low optimization efficiency in drone propeller airfoil design, this paper proposes an aerodynamic optimization method for propeller airfoils ...
Changjing Guo, Zhiling Xu, Xiaoyan Yang, Hao Li   +3 more
doaj   +1 more source

Research on Aerodynamic Optimization Design of High Lift Airfoil Based on Deep Learning and MOEA/D

Taiyuan Ligong Daxue xuebao
Purposes Aiming at the performance conflict between optimization parameters in prior optimization method, a hybrid optimization model based on MOEA/D is proposed, which integrates CNN and genetic algorithm into MOEA/D framework to balance the correlation
SHEN Yongqiang, WANG Han, XIANG Jixin, LI Zhiqiang   +3 more
doaj   +1 more source

A reinforcement learning approach to airfoil shape optimization

Scientific Reports, 2023
Shape optimization is an indispensable step in any aerodynamic design. However, the inherent complexity and non-linearity associated with fluid mechanics as well as the high-dimensional design space intrinsic to such problems make airfoil shape ...
Thomas P. Dussauge, Woong Je Sung, Olivia J. Pinon Fischer, Dimitri N. Mavris   +3 more
doaj   +1 more source

Multimodal Locomotion in Insect‐Inspired Microrobots: A Review of Strategies for Aerial, Surface, Aquatic, and Interfacial Motion

Advanced Robotics Research, EarlyView.
This review identifies key design considerations for insect‐inspired microrobots capable of multimodal locomotion. To draw inspiration, biological and robotic strategies for moving in air, on water surfaces, and underwater are examined, along with approaches for crossing the air–water interface.
Mija Jovchevska, Kaushik Jayaram, Nicole Xu   +2 more
wiley   +1 more source

Multi-Objective Optimization and Optimal Airfoil Blade Selection for a Small Horizontal-Axis Wind Turbine (HAWT) for Application in Regions with Various Wind Potential

Machines, 2022
The type of airfoil with small wind turbine blades should be selected based on the wind potential of the area in which the turbine is used. In this study, 10 low Reynolds number airfoils, namely, BW-3, E387, FX 63-137, S822, S834, SD7062, SG6040, SG6043,
Vahid Akbari, Mohammad Naghashzadegan, Ramin Kouhikamali, Farhad Afsharpanah, Wahiba Yaïci   +4 more
doaj   +1 more source

Thermally Induced Creep and Viscoelastic Behavior of Copper Micropillar Arrays

Advanced Science, EarlyView.
Copper micropillar arrays are fabricated by electrodeposition within through‐glass‐via, and their thermally induced time‐dependent deformation is quantified. Nanoindentation creep, EBSD, and TEM reveal a heat‐treatment‐driven transition between grain‐boundary‐mediated deformation and dislocation‐dominated creep, while Kelvin modeling captures ...
Miao Wang, Jihua Zhang, Libin Gao, Hongwei Chen, Wenbo Luo, Wenlei Li, Mingcheng Chen, Mengru Li, Dongbin Wang, Shuang Li, Ting Liu, Xingzhou Cai, Yong Li, Bin Peng, Wanli Zhang   +14 more
wiley   +1 more source