Results 31 to 40 of about 3,820 (224)

CFD Analysis and Shape Optimization of Airfoils Using Class Shape Transformation and Genetic Algorithm—Part I

open access: yesApplied Sciences, 2021
This paper presents the parameterization and optimization of two well-known airfoils. The aerodynamic shape optimization investigation includes the subsonic (NREL S-821) and transonic airfoils (RAE-2822).
Md Tausif Akram, Man-Hoe Kim
doaj   +1 more source

DESIGN OPTIMIZATION OF TRANSONIC AIRFOILS [PDF]

open access: yesEngineering Optimization, 1993
Numerical optimization procedures have been considered for the design of airfoils in transonic flow based on the transonic small-disturbance (TSD) and Euler equations. A sequential approximation optimization technique was implemented with an accurate approximation of the wave drag based on Nixon's coordinate straining approach.
C.-Y. JOH, B. GROSSMAN, R.T. HAFTKA
openaire   +1 more source

Multi-Size-Mesh, Multi-Time-Step Algorithm for Noise Computation on Curvilinear Meshes [PDF]

open access: yes, 2013
Aeroacoustic problems are often multi-scale and a zonal refinement technique is thus desirable to reduce computational effort while preserving low dissipation and low dispersion errors from the numerical scheme.
CORRE, Christophe   +3 more
core   +1 more source

Airfoil Optimization of Tiltrotor Aircraft Forward Flight Mode Based on Isight

open access: yesHangkong 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   +4 more
doaj   +1 more source

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

open access: yesTaiyuan 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   +3 more
doaj   +1 more source

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

open access: yesAdvanced 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   +2 more
wiley   +1 more source

Optimization using surrogate models and partially converged computational fluid dynamics simulations [PDF]

open access: yes, 2006
Efficient methods for global aerodynamic optimization using computational fluid dynamics simulations should aim to reduce both the time taken to evaluate design concepts and the number of evaluations needed for optimization.
Alexander I.J. Forrester   +5 more
core   +1 more source

Exploring Quantum Support Vector Regression for Predicting Hydrogen Storage Capacity of Nanoporous Materials

open access: yesAdvanced Intelligent Discovery, EarlyView.
In this study we employed support vector regressor and quantum support vector regressor to predict the hydrogen storage capacity of metal–organic frameworks using structural and physicochemical descriptors. This study presents a comparative analysis of classical support vector regression (SVR) and quantum support vector regression (QSVR) in predicting ...
Chandra Chowdhury
wiley   +1 more source

Multi-objective design optimization for high-lift aircraft configurations supported by surrogate modeling [PDF]

open access: yes, 2013
Nowadays, the competition among airlines seriously depend upon the saving operating costs, with the premise that not to degrade its services quality.
Li, Daxin
core  

A Review of Intelligent Airfoil Aerodynamic Optimization Methods Based on Data-Driven Advanced Models

open access: yesMathematics
With the rapid development of artificial intelligence technology, data-driven advanced models have provided new ideas and means for airfoil aerodynamic optimization.
Liyue Wang   +6 more
doaj   +1 more source

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