A higher-order finite element reactive transport model for unstructured and fractured grids
نویسندگان
چکیده
منابع مشابه
A characteristic/finite element algorithm for time-dependent 3-D advection-dominated transport using unstructured grids
An algorithm based on operator splitting has been successfully implemented for solving unsteady, advectiondominated transport problems in 3-D. Specifically, the general operator-integration-factor splitting method of Maday et al. is applied to the unsteady advection–diffusion equation with source/sink terms. The algorithm incorporates a 3-D characteristic Galerkin scheme to treat advection, and...
متن کاملResolution of computational aeroacoustics problems on unstructured grids with a higher-order finite volume scheme
CFD has become more and more used in the industry for the simulation of flows. Nevertheless, the complex configurations of real engineering problems make difficult the application of very accurate methods that only works on structured grids. From this point of view, the development of higher order methods for unstructured grids is desirable. The finite volume method can be used with unstructure...
متن کاملDiscontinuous Finite Element Sn Methods on 3-D Unstructured Grids
Discontinuous finite element methods for the SN equations on 3-D unstructured tetrahedral and hexahedral meshes are presented. Solution techniques including source iteration and diffusion-synthetic acceleration are described. Numerical results are presented which demonstrate the accuracy and efficiency of these methods.
متن کاملdaptive finite - element modeling using unstructured grids : he 2
Existing numerical modeling techniques commonly used for electromagnetic EM exploration are bound by the limitations of approximating complex structures using a rectangular grid. A more flexible tool is the adaptive finite-element FE method using unstructured grids. Composed of irregular triangles, an unstructured grid can readily conform to complicated structural boundaries. To ensure numerica...
متن کاملAll first-order averaging techniques for a posteriori finite element error control on unstructured grids are efficient and reliable
All first-order averaging or gradient-recovery operators for lowestorder finite element methods are shown to allow for an efficient a posteriori error estimation in an isotropic, elliptic model problem in a bounded Lipschitz domain Ω in Rd. Given a piecewise constant discrete flux ph ∈ Ph (that is the gradient of a discrete displacement) as an approximation to the unknown exact flux p (that is ...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Scientific Reports
سال: 2020
ISSN: 2045-2322
DOI: 10.1038/s41598-020-72354-3