Approximation Schemes for convective term - structured grids - definitions
From CFD-Wiki
(Difference between revisions)
(→definition of considered face, upon wich approximation is applied) |
|||
Line 1: | Line 1: | ||
+ | == Goals of this section == | ||
+ | |||
Here we shall develop a commone definitions and regulations because of | Here we shall develop a commone definitions and regulations because of | ||
Revision as of 17:53, 29 September 2005
Contents |
Goals of this section
Here we shall develop a commone definitions and regulations because of
- in different articles was used defferent definitions and notations
- we are searching for common approach and generalisation
Usual using definition for convected variable
definition of considered face, upon wich approximation is applied
usually (in the most articles) west face of the control volume is considered (without loss of generality)
for which flux is directed from the left to the right
we shall define it as
and convected variable at face as
also you can find in literature such definition as , but we suggested it non suitable, because of complication
indicators of the local velocity direction
approximation scheme can be written in the next form
| (1) |
where and are the indicators of the local velocity direction such that
| (1) |
| (1) |
and of course
| (1) |
also used such definitions as and
we offer to use
and
therefore unnormalised form of approximation scheme can be written
| (1) |
or in more general form
| (1) |