Premium
Accurate and efficient simulation of transport in multidimensional flow
Author(s) -
Latorre B.,
GarciaNavarro P.,
Murillo J.,
Burguete J.
Publication year - 2011
Publication title -
international journal for numerical methods in fluids
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.938
H-Index - 112
eISSN - 1097-0363
pISSN - 0271-2091
DOI - 10.1002/fld.2189
Subject(s) - discretization , mathematics , advection , convergence (economics) , piecewise , legendre polynomials , order of accuracy , polynomial , numerical analysis , flow (mathematics) , convection–diffusion equation , piecewise linear function , mathematical optimization , algorithm , mathematical analysis , geometry , numerical stability , physics , economics , thermodynamics , economic growth
Abstract A new numerical method to obtain high‐order approximations of the solution of the linear advection equation in multidimensional problems is presented. The proposed conservative formulation is explicit and based on a single updating step. Piecewise polynomial spatial discretization using Legendre polynomials provides the required spatial accuracy. The updating scheme is built from the functional approximation of the exact solution of the advection equation and a direct evaluation of the resulting integrals. The numerical details for the schemes in one and two spatial dimensions are provided and validated using a set of numerical experiments. Test cases have been oriented to the convergence and the computational efficiency analysis of the schemes. Copyright © 2009 John Wiley & Sons, Ltd.