High-order-accurate methods for viscous flow problems have the potential to reduce the computational effort required for a given level of solution accuracy. The state of the art in this area is more advanced for structured mesh methods and finiteelement methods than for unstructured mesh finite-volu
Uniformly high-order schemes on arbitrary unstructured meshes for advection–diffusion equations
✍ Scribed by V.A. Titarev; D. Drikakis
- Publisher
- Elsevier Science
- Year
- 2011
- Tongue
- English
- Weight
- 278 KB
- Volume
- 46
- Category
- Article
- ISSN
- 0045-7930
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✦ Synopsis
The paper presents a linear high-order method for advection-diffusion conservation laws on threedimensional mixed-element unstructured meshes. The key ingredient of the method is a reconstruction procedure in local computational coordinates. Numerical results illustrate the convergence rates for the linear equation and a non-linear hyperbolic system with diffusion terms for various types of meshes.
📜 SIMILAR VOLUMES
An artificial-viscosity finite-difference scheme is introduced for stabilizing the solutions of advectiondiffusion equations. Although only the linear one-dimensional case is discussed, the method is easily susceptible to generalization. Some theory and comparisons with other well-known schemes are
## Abstract A higher‐order discontinuous enrichment method (DEM) with Lagrange multipliers is proposed for the efficient finite element solution on unstructured meshes of the advection–diffusion equation in the high Péclet number regime. Following the basic DEM methodology, the usual Galerkin polyn
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