Results 1 to 10 of about 21,879 (220)

Multi-network collaborative lift-drag ratio prediction and airfoil optimization based on residual network and generative adversarial network [PDF]

open access: yesFrontiers in Bioengineering and Biotechnology, 2022
As compared with the computational fluid dynamics(CFD), the airfoil optimization based on deep learning significantly reduces the computational cost. In the airfoil optimization based on deep learning, due to the uncertainty in the neural network, the ...
Xiaoyu Zhao   +4 more
doaj   +2 more sources

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

open access: yesNuclear 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   +3 more sources

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

open access: yesAerospace
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   +3 more
doaj   +3 more sources

A reinforcement learning approach to airfoil shape optimization

open access: yesScientific 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   +3 more
doaj   +3 more sources

Optimization of Flapping Airfoils for Maximum Thrust and Propulsive Efficiency [PDF]

open access: yesActa Polytechnica, 2004
A numerical optimization algorithm based on the steepest decent along the variation of the optimization function is implemented for maximizing the thrust and/or propulsive efficiency of a single flapping airfoil.
I. H. Tuncer, M. Kay
doaj   +5 more sources

Airfoil optimization using Design-by-Morphing [PDF]

open access: yesJournal of Computational Design and Engineering, 2023
Abstract Design-by-Morphing (DbM) is a novel design methodology that creates a search space for topology optimization. Traditional design techniques often impose geometric constraints and, sometimes, the designer’s biases on the design space, which restricts the novelty of the designs and allows for only small local changes.
Haris Moazam Sheikh   +3 more
openaire   +5 more sources

Aerodynamic optimization design of Z-shaped folding UAV [PDF]

open access: yesJournal of Hebei University of Science and Technology, 2023
Aiming at the problems of rolling torque and yaw torque of zigzag UAV, a multi-objective optimization method based on hybrid airfoil parameterization was proposed.
Bin MENG   +4 more
doaj   +1 more source

Airfoil GAN: encoding and synthesizing airfoils for aerodynamic shape optimization

open access: yesJournal of Computational Design and Engineering, 2023
Abstract The current design of aerodynamic shapes, like airfoils, involves computationally intensive simulations to explore the possible design space. Usually, such design relies on the prior definition of design parameters and places restrictions on synthesizing novel shapes.
Yuyang Wang 0005   +2 more
openaire   +4 more sources

Airfoil Robust Optimization Based on Convolutional Neural Network and Polynomial Chaos Method

open access: yesHangkong gongcheng jinzhan, 2021
In conventional airfoil optimization design method, the aerodynamic performance of the optimal airfoil can deteriorate at the non-design point, so it is necessary to study the airfoil robust optimization method.An airfoil robustness design method based ...
GAO Yuan   +4 more
doaj   +1 more source

Airfoil shape optimization using Bézier curve and genetic algorithm

open access: yesAviation, 2022
There are different types of airfoil used in many applications such as energy production, aerospace, mixing of fluid products. Design optimization studies are still being carried out on the airfoil type structures.
Hatice Cansu Ayaz Ümütlü, Zeki Kiral
doaj   +1 more source

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