Results 31 to 40 of about 4,131 (216)

Adaptive Isogeometric Methods for Boussinesq Problems [PDF]

open access: yes, 2022
Computational Fluid Dynamics (CFD) is the numerical study of fluid flow, heat transfer, turbulence modelling and several conservation laws. The fluids can be liquids, gases and even plasmas. There is a vast number of differential equations describing the
Abdulhaque, Abdullah
core  

ISOGEOMETRIC ANALYSIS OF STRESS INTENSITY FACTOR IN V-NOTCHED PLANE

open access: yesJixie qiangdu, 2022
In this paper, an isogeometric analysis method is proposed to obtain the notch tip stress intensity factor for the plane fracture problem with V-notch.
XU Wang, ZHONG DongWang, CAI LuJun
doaj  

A Comparative Study of Several Classical, Discrete Differential and Isogeometric Methods for Solving Poisson’s Equation on the Disk

open access: yesAxioms, 2014
This paper outlines and qualitatively compares the implementations of seven different methods for solving Poisson’s equation on the disk. The methods include two classical finite elements, a cotan formula-based discrete differential geometry approach and
Thien Nguyen   +2 more
doaj   +1 more source

T-Splines for Isogeometric Analysis of the Large Deformation of Elastoplastic Kirchhoff–Love Shells

open access: yesApplied Sciences, 2023
In this paper, we develop a T-spline-based isogeometric method for the large deformation of Kirchhoff–Love shells considering highly nonlinear elastoplastic materials.
Mayi Guo   +5 more
doaj   +1 more source

Efficient p-Multigrid Based Solvers for Isogeometric Analysis on Multipatch Geometries

open access: yes, 2021
Isogeometric Analysis can be considered as the natural extension of the Finite Element Method (FEM) to higher-order spline based discretizations simplifying the treatment of complex geometries with curved boundaries.
Tielen, R.P.W.M. (author)   +2 more
core   +1 more source

Isogeometric analysis in option pricing [PDF]

open access: yesInternational Journal of Computer Mathematics, 2018
Isogeometric analysis is a recently developed computational approach that integrates finite element analysis directly into design described by non-uniform rational B-splines (NURBS). In this paper we show that price surfaces that occur in option pricing can be easily described by NURBS surfaces. For a class of stochastic volatility models, we develop a
Jan Pospisil 0001, Vladimír Svígler
openaire   +2 more sources

Volumetric spline parameterization for isogeometric analysis [PDF]

open access: yesComputer Methods in Applied Mechanics and Engineering, 2020
Given the spline representation of the boundary of a three dimensional domain, constructing a volumetric spline parameterization of the domain (i.e., a map from a unit cube to the domain) with the given boundary is a fundamental problem in isogeometric analysis.
Maodong Pan, Falai Chen, Weihua Tong
openaire   +3 more sources

A study of isogeometric analysis for scalar convection-diffusion equations [PDF]

open access: yes, 2013
Isogeometric Analysis (IGA), in combination with the Streamline Upwind Petrov--Galerkin (SUPG) stabilization, is studied for the discretization of steady-state con\-vection-diffusion equations.
Schumacher, Liesel, John, Volker
core   +1 more source

Coupling isogeometric analysis with deep learning for stability evaluation of rectangular tunnels

open access: yes, 2023
The problem considered in this paper is for the stability evaluation of a rectangular tunnel in undrained clay during lining process. The approach adopted involved the use of isogeometric analysis (IGA) and the upper bound limit analysis formulation for ...
Nguyen-Minh, Toan   +9 more
core   +1 more source

Isogeometric Bi-Directional Evolutionary Structural Optimization

open access: yesIEEE Access, 2019
Isogeometric analysis (IGA), due to its high efficiency and accuracy, can be replaced by the conventional finite element method in the topology optimizations (TOs).
Ling Yin   +5 more
doaj   +1 more source

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