Modeling subgrid viscosity for advection-diffusion problems
We analyze the effect of the subgrid viscosity on a finite element discretization, with piecewise linear elements, of a linear advection-diffusion scalar equation. We point out the importance of a proper tune-up of the viscosity coefficient, and we propose a heuristic method for obtaining reasonable...
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| Veröffentlicht in: | Computer methods in applied mechanics and engineering 2000-12, Vol.190 (13-14), p.1601-1610 |
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| container_issue | 13-14 |
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| container_title | Computer methods in applied mechanics and engineering |
| container_volume | 190 |
| creator | BREZZI, F HOUSTON, P MARINI, D SÜLI, E |
| description | We analyze the effect of the subgrid viscosity on a finite element discretization, with piecewise linear elements, of a linear advection-diffusion scalar equation. We point out the importance of a proper tune-up of the viscosity coefficient, and we propose a heuristic method for obtaining reasonable values for it. The extension to more general problems is then hinted in the last section. |
| doi_str_mv | 10.1016/S0045-7825(00)00179-1 |
| format | Article |
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| ispartof | Computer methods in applied mechanics and engineering, 2000-12, Vol.190 (13-14), p.1601-1610 |
| issn | 0045-7825 1879-2138 |
| language | eng |
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| source | Access via ScienceDirect (Elsevier) |
| subjects | Computational methods in fluid dynamics Computational techniques Exact sciences and technology Finite-element and galerkin methods Fluid dynamics Fundamental areas of phenomenology (including applications) Mathematical methods in physics Physics |
| title | Modeling subgrid viscosity for advection-diffusion problems |
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