Results 51 to 60 of about 224,566 (258)

DiffAirfoil: An Efficient Novel Airfoil Sampler Based on Latent Space Diffusion Model for Aerodynamic Shape Optimization

open access: yesAIAA AVIATION FORUM AND ASCEND 2024
Surrogate-based optimization is widely used for aerodynamic shape optimization, and its effectiveness depends on representative sampling of the design space.
Zhen Wei   +4 more
semanticscholar   +1 more source

Efficient Modal Design Variables Applied to Aerodynamic Optimization of a Modern Transport Wing [PDF]

open access: yes, 2016
Aerodynamic shape optimization of a transonic wing using mathematically-extracted modal design variables is presented. A novel approach is used for deriving design variables using a proper orthogonal decomposition of a set of training aerofoils to obtain
Allen, Christian   +2 more
core   +2 more sources

Design Exploration of the NACA Airfoil Family Using High-Fidelity CFD Analysis [PDF]

open access: yesINCAS Bulletin
As the aviation industry continues to prioritize sustainability, enhancing aerodynamic efficiency remains a central goal in reducing environmental impact.
Mihai-Vladut HOTHAZIE   +5 more
doaj   +1 more source

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

open access: yes, 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   +3 more
core   +2 more sources

Aerodynamic shape optimization of an airliner elastic wing

open access: yesITM Web of Conferences, 2017
Aerodynamic shape optimization of a common airliner elastic wing is presented and compared with optimization of the same wing assuming rigid structure.
Navrátil Jan
doaj   +1 more source

Aerodynamic Shape Optimization of NREL S809 Airfoil for Wind Turbine Blades Using Reynolds-Averaged Navier Stokes Model—Part II

open access: yesApplied Sciences, 2021
Sustainability has become one of the most significant considerations in everyday work, including energy production. The fast-growing trend of wind energy around the world has increased the demand for efficient and optimized airfoils, which has paved the ...
Tausif Akram, Man-Hoe Kim
semanticscholar   +1 more source

Gradient-Based Aerodynamic Optimization of an Airfoil with Morphing Leading and Trailing Edges

open access: yesApplied Sciences, 2021
This article presents a gradient-based aerodynamic optimization framework and investigates optimum deformations for a transonic airfoil equipped with morphing leading and trailing edges.
Zhenkai Zhang   +4 more
doaj   +1 more source

Discrete adjoint aerodynamic shape optimization using symbolic analysis with OpenFEMflow

open access: yesStructural And Multidisciplinary Optimization, 2021
The combination of gradient-based optimization with the adjoint method for sensitivity analysis is a very powerful and popular approach for aerodynamic shape optimization. However, differentiating CFD codes is a time consuming and sometimes a challenging
A. Elham, M. V. van Tooren
semanticscholar   +1 more source

Structural instability impairs function of the UDP‐xylose synthase 1 Ile181Asn variant associated with short‐stature genetic syndrome in humans

open access: yesFEBS Letters, EarlyView.
The Ile181Asn variant of human UDP‐xylose synthase (hUXS1), associated with a short‐stature genetic syndrome, has previously been reported as inactive. Our findings demonstrate that Ile181Asn‐hUXS1 retains catalytic activity similar to the wild‐type but exhibits reduced stability, a looser oligomeric state, and an increased tendency to precipitate ...
Tuo Li   +2 more
wiley   +1 more source

Optimization and Experimental Investigation of a Single-Actuation Compliant Morphing Trailing Edge for Multiple Aerodynamic Configurations

open access: yesActuators
This work presents a low-fidelity optimization method for a compliant morphing wing trailing-edge structure, developed to achieve multiple optimized aerodynamic shapes under combined aerodynamic and control loads using a single actuation pathway ...
Martynas Lendraitis   +1 more
doaj   +1 more source

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