Biomedical Engineering Reference
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equation of low. Variable is not arranged on the points of grid but
at the center of cells as representative value. Conservation law is
expressed with inlow and outlow from the boundary of cells and
also occurrence and extinction from within cells. The calculation
of this relation in conservation law is the concept of the FVM. Both
structured grid and unstructured grid are able to be adapted in this
method.
I , J
+
1
I
1, J
I
+
1, J
I , J
I , J 1
Figure 5.6
Finite-difference method.
1
2
I , J
+
1
2 , J
1
I
I +
2 , J
I , J
1
2
I , J
Figure 5.7
Finite-volume method.
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