Results 181 to 190 of about 224,566 (258)

Aerodynamic shape optimization of wind turbine blades for minimizing power production losses due to icing

Cold Regions Science and Technology, 2021
Ice formation on a wind turbine alters the airfoil profiles of the blades and causes degradation in the aerodynamic performance of the wind turbine and the resulting power production losses.
Ozcan Yirtici, I. Tuncer
semanticscholar   +1 more source

Gradient-free aerodynamic shape optimization using Large Eddy Simulation

Computers & Fluids, 2021
In this paper we demonstrate the ability to perform gradient-free aerodynamic shape optimization using Large Eddy Simulation (LES) with the Mesh Adaptive Direct Search (MADS) optimization algorithm.
H. Karbasian, Brian C. Vermeire
semanticscholar   +1 more source

Review of deep learning-based aerodynamic shape surrogate models and optimization for airfoils and blade profiles

The Physics of Fluids
In recent years, deep learning technology has developed rapidly and has shown great potential in the optimization of complex systems. In aerodynamic shape optimization, traditional computational fluid dynamics and experimental methods are limited due to ...
Xiaogang Liu, Sheng Yang, Haifeng Sun, Zhongyi Wang, X. Guan, Yuanqi Gu, Yuhang Wang   +6 more
semanticscholar   +1 more source

Adjoint-Free Aerodynamic Shape Optimization of the Common Research Model Wing

, 2021
Adjoint-free methods are required in aerodynamic shape design optimization if an adjoint solver is unavailable.
Ji-chao Li, Mengqi Zhang
semanticscholar   +1 more source

Multi-fidelity deep learning for aerodynamic shape optimization using convolutional neural network

The Physics of Fluids
Aerodynamic shape design is essential for improving aircraft performance and efficiency. First, this study introduces a data-driven optimization framework utilizing a multi-fidelity convolutional neural network (MFCNN) for aerodynamic shape optimization.
Guocheng Tao, Chengwei Fan, Wen Wang, Wenjun Guo, Jiahuan Cui   +4 more
semanticscholar   +1 more source

Efficient Aerodynamic Shape Optimization with Deep-Learning-Based Geometric Filtering

AIAA Journal, 2020
Surrogate-based optimization has been used in aerodynamic shape optimization, but it has been limited due to the curse of dimensionality.
Ji-chao Li, Mengqi Zhang, J. Martins, C. Shu   +3 more
semanticscholar   +1 more source

Vehicle Aerodynamic Shape Optimization

SAE Technical Paper Series, 2011
<div class="section abstract"><div class="htmlview paragraph">Recent advances in morphing, simulation, and optimization technologies have enabled analytically driven aerodynamic shape optimization to become a reality. This paper will discuss the integration of these technologies into a single process which enables the aerodynamicist to ...
openaire   +1 more source

Missile Aerodynamic Shape Optimization Using Genetic Algorithms

Journal of Spacecraft and Rockets, 1999
The use of pareto genetic algorithms (GAs)to determine high-efe ciency missile geometries is examined, and the capabilityofthesealgorithmstodeterminehighlyefe cientandrobustmissileaerodynamicdesignsisdemonstrated, given a variety of design goals and constraints.
M. Anderson, J. Burkhalter, R. Jenkins
openaire   +1 more source

Aerodynamic Shape Optimization of an S-Duct Intake for a Boundary Layer Ingesting Engine

AIAA AVIATION 2021 FORUM, 2021
A high-fidelity aerodynamic shape optimization framework based on the Reynolds-Averaged Navier-Stokes equations is applied to the optimization of a boundary layer ingesting S-duct designed for embedded engines on a high-subsonic, unmanned flight vehicle.
Christopher Chiang, David Koo, D. Zingg
semanticscholar   +1 more source

Discrete Adjoint-Based Aerodynamic Shape Optimization Framework for Natural Laminar Flows

AIAA Journal, 2021
An adjoint-based aerodynamic shape optimization framework for natural laminar flows is developed.
Halil Kaya, I. Tuncer
semanticscholar   +1 more source