Page 225 - Basic Structured Grid Generation
P. 225
214 Basic Structured Grid Generation
5
6 4
10
11 3
7 7 2 3
4
9
6 2
1
5
8
1
Fig. 8.36 Eighth front.
5
6 4
10
11 3
7 7 4 2 3
9 K id
6 2
1
5
8
1
Fig. 8.37 Side 11-9; ideal point.
• nelem: 7
• nptr: 7
Next the side 11-9 is chosen, and K ideal located. The equilateral triangle constructed
has one side which cuts the side 9-10 of the front (Fig. 8.37), and so K ideal is rejected
as a new point. Instead, the nearest active node 10 is chosen, and the updated front
shown in Fig. 8.38 has properties:
• active nodes: 7, 11, 10, 4, 5, 6
• active sides: 7-11, 11-10, 10-4, 4-5, 5-6, 6-7
• passive nodes: 8, 1, 2, 3
• passive sides: 7-8, 8-1, 1-2, 2-3, 3-4
• npoint: 11
• nelem: 8
• nptr: 6
