Results 31 to 40 of about 83,635 (342)

A point collocation approach to modelling large dissipative silencers [PDF]

open access: yes, 2005
A numerical matching technique known as point collocation is used to model mathematically large dissipative splitter silencers of a type commonly found in HVAC ducts. Transmission loss predictions obtained using point collocation are compared with exact
Allard   +18 more
core   +2 more sources

An approximation method for the solution of nonlinear integral equations [PDF]

open access: yes, 2006
A Chebyshev collocation method has been presented to solve nonlinear integral equations in terms of Chebyshev polynomials. This method transforms the integral equation to a matrix equation which corresponds to a system of nonlinear algebraic equations ...
Akyuz-Dascioglu, A, Yaslan, HC
core   +3 more sources

Convergence rate for a Gauss collocation method applied to unconstrained optimal control

open access: yes, 2015
A local convergence rate is established for an orthogonal collocation method based on Gauss quadrature applied to an unconstrained optimal control problem.
Hager, William W.   +2 more
core   +1 more source

On $hp$-Convergence of PSWFs and A New Well-Conditioned Prolate-Collocation Scheme

open access: yes, 2013
The first purpose of this paper is to provide a rigorous proof for the nonconvergence of $h$-refinement in $hp$-approximation by the PSWFs, a surprising convergence property that was first observed by Boyd et al [J. Sci. Comput., 2013].
Wang, Li-Lian   +2 more
core   +1 more source

Collocation Methods for Second Order Systems

open access: yesRobotics: Science and Systems XVIII, 2022
Collocation methods for numerical optimal control commonly assume that the system dynamics is expressed as a first order ODE of the form x¿ = f(x, u, t), where x is the state and u the control vector. However, in many systems in robotics, the dynamics adopts the second order form q¨ = g(q, q¿, u, t), where q is the configuration.
Moreno Martín, Siro   +2 more
openaire   +1 more source

Studies on the Method of Orthogonal Collocation VII: An Efficient Collocation Method for Diffusion-convection Problems with Chemical Reaction

open access: yesJournal of King Saud University: Engineering Sciences, 2008
In this work we present a new numerical scheme based on orthogonal collocation method to solve a reacting flow problem. The method is based on recasting the problem to become a larger set of first order differential equations and we show by numerical ...
Moustafa A. Soliman, Khalid Alhumaizi
doaj   +1 more source

Simple and accurate approach for solving of nonlinear heat convective-radiative equation in fin by using the collocation method and comparison with HPM and VIM [PDF]

open access: yesTheoretical and Applied Mechanics, 2014
Collocation Method (CM) such as analytical technique, which does not need small parameters is here used to evaluate the analytical approximate solutions of the nonlinear heat transfer equation.
Rahimi Petroudi I.   +4 more
doaj   +1 more source

A Survey on Isogeometric Collocation Methods with Applications

open access: yesMathematics, 2023
Isogeometric analysis (IGA) is an effective numerical method for connecting computer-aided design and engineering, which has been widely applied in various aspects of computational mechanics. IGA involves Galerkin and collocation formulations. Exploiting
Jingwen Ren, Hongwei Lin
doaj   +1 more source

Domain decomposition preconditioners for the spectral collocation method [PDF]

open access: yes, 1988
Several block iteration preconditioners are proposed and analyzed for the solution of elliptic problems by spectral collocation methods in a region partitioned into several rectangles.
Quarteroni, Alfio   +1 more
core   +2 more sources

Multi-quadric collocation model of horizontal crustal movement [PDF]

open access: yesSolid Earth, 2016
To establish the horizontal crustal movement velocity field of the Chinese mainland, a Hardy multi-quadric fitting model and collocation are usually used.
G. Chen, A. Zeng, F. Ming, Y. Jing
doaj   +1 more source

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