Results 181 to 190 of about 21,879 (220)
Some of the next articles are maybe not open access.
Two-dimensional airfoil shape optimization for airfoils at low speeds
AIAA Modeling and Simulation Technologies Conference, 2012This paper presents a fast methodology for the design of two-dimensional low-speed airfoils. We propose a methodology in which the design process starts from an already known airfoil or from a new defined airfoil by imposing some basic geometrical characteristics, such as: the airfoil’s radius at the leading edge, the maximum height of the airfoil’s ...
Paul Silisteanu, Ruxandra Botez
openaire +1 more source
Optimization of flatback airfoils for wind turbine blades
Aircraft Engineering and Aerospace Technology, 2010PurposeIn recent years, the airfoil sections with blunt trailing edge (called flatback airfoils) have been proposed for the inboard regions of large wind‐turbine blades because they provide several structural and aerodynamic performance advantages. The purpose of this paper is to optimize the shape of these airfoils for optimal performance using a ...
Xiaomin Chen, Ramesh Agarwal
openaire +1 more source
On the Optimal Control Method for Airfoil and Cascade Analysis
SIAM Journal on Scientific Computing, 1995Summary: In solving the full potential equation, the least-squares technique provides a robust and efficient approach. In this paper, this approach is investigated and a new algorithm is proposed. In particular, the upwind density technique is used instead and a very effective way of handling the circulation is proposed.
openaire +1 more source
Airfoil Topology Optimization using Teaching-Learning based Optimization
International Journal of Applied Metaheuristic Computing, 2015This paper primarily deals with the optimization of airfoil topology using teaching-learning based optimization, a recently proposed heuristic technique, investigating performance in comparison to Genetic Algorithm and Particle Swarm Optimization. Airfoil parametrization and co-ordinate manipulations are accomplished using piecewise b-spline curves ...
Dushhyanth Rajaram +2 more
openaire +1 more source
Airfoil Optimization based on Isogeometric Discontinuous Galerkin
Proceedings of the 2018 2nd International Conference on Algorithms, Computing and Systems, 2018In this paper, an adjoint-based airfoil optimization algorithm is developed based on isogeometric discontinuous Galerkin (IDG) method for compressible Euler equations. We first parameterize the airfoil by B-spline curve approximation with some control points viewed as design variables, and build the B-spline representation of the flow field with the ...
Kun Wang 0054, Shengjiao Yu, Tiegang Liu
openaire +1 more source
A Novel Global Optimization Algorithm and Its Application to Airfoil Optimization
Journal of Turbomachinery, 2014In this paper, a novel global optimization algorithm has been developed, which is named as particle swarm optimization combined with particle generator (PSO–PG). In PSO–PG, a PG was introduced to iteratively generate the initial particles for PSO. Based on a series of comparable numerical experiments, it was convinced that the calculation accuracy of ...
B. Yang +5 more
openaire +1 more source
Journal of Thermal Science, 2015
A new airfoil shape parameterization method is developed, which extended the Bezier curve to the generalized form with adjustable shape parameters. The local control parameters at airfoil leading and trailing edge regions are enhanced, where have significant effect on the aerodynamic performance of wind turbine.
Yixiong Liu, Ce Yang, Xiancheng Song
openaire +1 more source
A new airfoil shape parameterization method is developed, which extended the Bezier curve to the generalized form with adjustable shape parameters. The local control parameters at airfoil leading and trailing edge regions are enhanced, where have significant effect on the aerodynamic performance of wind turbine.
Yixiong Liu, Ce Yang, Xiancheng Song
openaire +1 more source
Deep neural network for airfoil optimization
AIAA SCITECH 2022 Forum, 2022Wenhui Peng, Yao Zhang, Michel Desmarais
openaire +1 more source
Horizontal Axis Hydroturbine Shroud Airfoil Optimization
2014The present work concerns the optimization of the shroud of an horizontal axis hydro turbine (HAHT). The main aim is to improve the hydro-turbine efficiency by designing a new shroud airfoil through an optimization process that maximize, as objective function, the power coefficient.
E. Ferrauto, E. Daniele, COIRO, DOMENICO
openaire +2 more sources
Direct Optimization of Transonic Airfoils
1997The paper reports on the numerical procedure for the optimization of transonic airfoils developed in ALN D.V.D. within BRITE/EURAM AERO-0026 contract. Results for the solution of test case T6 of the workshop are presented.
openaire +1 more source