Results 51 to 60 of about 69,093 (209)

Stealth Unmanned Aerial Vehicle Penetration Efficiency Optimization Based on Radar Detection Probability Model

open access: yesAerospace
Aerodynamic/stealth optimization is a key issue during the design of a stealth UAV. Balancing the weight of different incident angles of the RCS and combining stealth characteristics with aerodynamic characteristics are hotspots of aerodynamic/stealth ...
Chengen Yuan   +3 more
doaj   +1 more source

Optimization of UAV Airfoil Based on Improved Particle Swarm Optimization Algorithm

open access: yesInternational Journal of Aerospace Engineering, 2022
Airfoil optimization is an essential task in the aerodynamic layout design of the unmanned aerial vehicle (UAV). An objective optimization function was constructed based on the airfoil power factor and handling stability at various attack angles.
Tieying Jiang, Liang Jiang
doaj   +1 more source

Propeller Aerodynamic Design and Optimization

open access: yes, 2023
This research endeavors to illuminate the path toward efficient and optimized propeller design by delving into the realm of aerodynamics. Propellers, as vital mechanical marvels, constitute the core of numerous propulsion systems, spanning from aircraft and marine vessels to wind turbines.
openaire   +1 more source

Surrogate-based evolutionary optimization of aerodynamic performance and emitted sound for an impeller fan

open access: yesEngineering Applications of Computational Fluid Mechanics
Centrifugal fans are widely used in building ventilation and air-conditioning systems but face increasing demands for higher energy efficiency, improved performance, and lower noise levels.
Hamid Motamedi Zokae   +2 more
doaj   +1 more source

Application of Nontraditional Optimization Techniques for Airfoil Shape Optimization

open access: yesModelling and Simulation in Engineering, 2012
The method of optimization algorithms is one of the most important parameters which will strongly influence the fidelity of the solution during an aerodynamic shape optimization problem.
R. Mukesh, K. Lingadurai, U. Selvakumar
doaj   +1 more source

Aerodynamic optimization of NACA 0012 airfoils with attached Gurney flap in the rarefied gas flow

open access: yesAIP Advances, 2023
The aerodynamic optimization of a Gurney flap attached to the NACA 0012 airfoil in rarefied gas flow is studied in this study. In order to investigate the effects of Gurney flap geometry (height, mounting angle, and mounting location) and angle of attack
Keren Lin   +4 more
doaj   +1 more source

Aerodynamic Optimization of High-Speed Trains Nose using a Genetic Algorithm and Artificial Neural Network [PDF]

open access: yes, 2011
An aerodynamic optimization of the train aerodynamic characteristics in term of front wind action sensitivity is carried out in this paper. In particular, a genetic algorithm (GA) is used to perform a shape optimization study of a high-speed train nose ...
Crespo Martínez, Antonio   +2 more
core   +1 more source

Efficient aerodynamic shape optimization by using unsupervised manifold learning to filter geometric features

open access: yesEngineering Applications of Computational Fluid Mechanics
Many aerodynamic shape optimization methods often focus on utilizing the end-to-end relationship between design variables and aerodynamic performance to find the optimal design, while overlooking the exploration of geometric knowledge of the shape itself.
Long Ma, Xiao-Jing Wu, Wei-Wei Zhang
doaj   +1 more source

Application of Multidisciplinary Design Optimization on Advanced Configuration Aircraft

open access: yesJournal of Aerospace Technology and Management, 2017
An optimization strategy is constructed to solve the aerodynamic and structural optimization problems in the conceptual design of double-swept flying wing aircraft. Aircraft preliminary aerodynamic and structural design optimization is typically based on
Yalin Pan   +3 more
doaj  

An optimization procedure of shape and position of the aerodynamic device at the rear side of a semi-trailer truck model

open access: yesHeliyon
The paper outlines the development and optimization of an aerodynamic device for a semi-trailer truck model to reduce aerodynamic drag force. The optimization procedure involves the selection of a basic aerodynamic device shape, using airfoil profiles ...
Stjepan Galamboš   +5 more
doaj   +1 more source

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