Isogeometric analysis for second order partial differential equations on surfaces
نویسندگان
چکیده
We consider the numerical solution of second order Partial Differential Equations (PDEs) on lower dimensional manifolds, specifically on surfaces in three dimensional spaces. For the spatial approximation, we consider Isogeometric Analysis which facilitates the encapsulation of the exact geometrical description of the manifold in the analysis when this is represented by B–splines or NURBS. Our analysis addresses linear, nonlinear, time dependent, and eigenvalues problems involving the Laplace–Beltrami operator on surfaces. We highlight the accuracy and efficiency of the method with respect to the exactness of the geometrical representations of the surfaces.
منابع مشابه
Isogeometric analysis and error estimates for high order partial differential equations in fluid dynamics
In this paper, we consider the numerical approximation of high order Partial Differential Equations (PDEs) by means of NURBS–based Isogeometric Analysis (IGA) in the framework of the Galerkin method, for which global smooth basis functions with degree of continuity higher than C can be used. We derive a priori error estimates for high order elliptic PDEs under h–refinement, by extending existin...
متن کاملSolving high-order partial differential equations in unbounded domains by means of double exponential second kind Chebyshev approximation
In this paper, a collocation method for solving high-order linear partial differential equations (PDEs) with variable coefficients under more general form of conditions is presented. This method is based on the approximation of the truncated double exponential second kind Chebyshev (ESC) series. The definition of the partial derivative is presented and derived as new operational matrices of der...
متن کاملMass Smoothers in Geometric Multigrid for Isogeometric Analysis
We investigate geometric multigrid methods for solving the large, sparse linear systems which arise in isogeometric discretizations of elliptic partial differential equations. In particular, we study a smoother which incorporates the inverse of the mass matrix as an iteration matrix, and which we call mass-Richardson smoother. We perform a rigorous analysis in a model setting and perform some n...
متن کاملOn Isogeometric Subdivision Methods for PDEs on Surfaces
Subdivision surfaces are proven to be a powerful tool in geometric modeling and computer graphics, due to the great flexibility they offer in capturing irregular topologies. This paper discusses the robust and efficient implementation of an isogeometric discretization approach to partial differential equations on surfaces using subdivision methodology. Elliptic equations with the Laplace-Beltra...
متن کاملDiscontinuous Galerkin Isogeometric Analysis of Elliptic PDEs on Surfaces
The Isogeometric Analysis (IGA) was introduced by Hughes et al. [2005] and has since been developed intensively, see also monograph Cottrell et al. [2009], is a very suitable framework for representing and discretizing Partial Differential Equations (PDEs) on surfaces. We refer the reader to the survey paper by Dziuk and Elliot [2013] where different finite element approaches to the numerical s...
متن کامل