Results 21 to 30 of about 224,566 (258)

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

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

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

Aerodynamic shape optimization of an electric aircraft motor surface heat exchanger with conjugate heat transfer constraint

open access: yesInternational Journal of Heat and Mass Transfer, 2022
Electrified aircraft benefit from the versatile ways electric motors can be integrated with an airframe. However, thermal management is needed to move waste heat out of the motors because the heat is not expelled with the exhaust as in a conventional ...
Josh L. Anibal, C. Mader, J. Martins
semanticscholar   +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

Efficient Aerodynamic Shape Optimization in MDO Context [PDF]

open access: yesPAMM, 2005
AbstractThe aerospace industry is increasingly relying on advanced numerical flow simulation tools in the early aircraft design phase. Today's flow solvers, which are based on the solution of the compressible Euler and Navier‐Stokes equations, are able to predict aerodynamic behaviour of aircraft components under different flow conditions quite well [1]
Fazzolari, Antonio   +2 more
openaire   +3 more sources

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

Robust multi-fidelity design of a micro re-entry unmanned space vehicle [PDF]

open access: yes, 2011
This article addresses the preliminary robust design of a small-scale re-entry unmanned space vehicle by means of a hybrid optimization technique. The approach, developed in this article, closely couples an evolutionary multi-objective algorithm with a ...
Aupoix B.   +9 more
core   +1 more source

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