Boundary Conditions

The boundary conditions for flow in FASTEST are stored in the array ipat(7,npat), where npat is the number of patches in the problem. It is worth noting that information about connectivities is not stored in ipat!

The ``fields'' (first index) in ipat have the following contents:

ipat(1,ipa):

Boundary condition type (usually a negative number).

ipat(2,ipa):

Block number to which this patch belongs.

ipat(3,ipa):

Face number on which this patch resides.

ipat(4,ipa):

Lowest index in i-direction.

ipat(5,ipa):

Highest index in i-direction.

ipat(6,ipa):

Lowest index in j-direction.

ipat(7,ipa):

Highest index in j-direction.

The faces are numbered according to this: W=1, S=2, B=3, T=4, N=5, E=6.

The boundary conditions on the temperature patches are stored in an analogous array ipatt. There are npatt of them.