Diffusion term
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==Discretisation of Diffusive Term == | ==Discretisation of Diffusive Term == | ||
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| + | # [[Approximation Schemes for diffusive term]] | ||
| + | # [[Approximation of Diffusive Fluxes]] | ||
| + | # [[Discretisation on orthogonal grids]] | ||
| + | # [[Discretisation on non-orthogonal curvilinear body-fitted grids]] | ||
===1. Description=== | ===1. Description=== | ||
Revision as of 22:40, 14 September 2005
Discretisation of Diffusive Term
- Approximation Schemes for diffusive term
- Approximation of Diffusive Fluxes
- Discretisation on orthogonal grids
- Discretisation on non-orthogonal curvilinear body-fitted grids
1. Description
A control volume in mesh is made up of set of faces enclosing it. The figure 1.1 shows a typical situation. Where A represent the magnitude of area of the face. And n represents the normal unit vector of the face under consideration.
Figure 1.1
and 
are position vector of centroids of cells cell 0 and cell 1 respectively.
2. Approach 1
We define vector
