6.1.2 Face-Node Connectivity in ANSYS FLUENT

This section contains information about the connectivity of faces and their related nodes in terms of node number and face number.

Face-node connectivity for the following cell shapes is explained here:

• triangular (Figure  6.1.14)

• quadrilateral (Figure  6.1.15)

• tetrahedral (Figure  6.1.16)

• wedge (Figure  6.1.17)

• pyramidal (Figure  6.1.18)

• hex (Figure  6.1.19)

• polyhedral (Figure  6.1.20)

This information is useful in interfacing with ANSYS FLUENT.

Face-Node Connectivity for Triangular Cells

Figure 6.1.14: Face and Node Numbering for Triangular Cells

Face	Associated Nodes
Face 1	1-2
Face 2	2-3
Face 3	3-1

Face-Node Connectivity for Quadrilateral Cells

Figure 6.1.15: Face and Node Numbering for Quadrilateral Cells

Face	Associated Nodes
Face 1	1-2
Face 2	2-3
Face 3	3-4
Face 4	4-1

Face-Node Connectivity for Tetrahedral Cells

Figure 6.1.16: Face and Node Numbering for Tetrahedral Cells

Face	Associated Nodes
Face 1	3-2-4
Face 2	4-1-3
Face 3	2-1-4
Face 4	3-1-2

Face-Node Connectivity for Wedge Cells

Figure 6.1.17: Face and Node Numbering for Wedge Cells

Face	Associated Nodes
Face 1	3-2-1
Face 2	6-5-4
Face 3	4-2-3-6
Face 4	5-1-2-4
Face 5	6-3-1-5

Face-Node Connectivity for Pyramidal Cells

Figure 6.1.18: Face and Node Numbering for Pyramidal Cells

Face	Associated Nodes
Face 1	4-3-2-1
Face 2	4-5-3
Face 3	3-5-2
Face 4	2-5-1
Face 5	1-5-4

Face-Node Connectivity for Hex Cells

Figure 6.1.19: Face and Node Numbering for Hex Cells

Face	Associated Nodes
Face 1	4-3-2-1
Face 2	3-4-6-5
Face 3	4-1-7-6
Face 4	2-3-5-8
Face 5	1-2-8-7
Face 6	7-8-5-6

Face-Node Connectivity for Polyhedral Cells

Figure 6.1.20: An Example of a Polyhedral Cell

For polyhedral cells, there is no explicit face and node numbering as with the other cell types.