应用场景举例:将角点网格转换为更加灵活node Based网格,用于断层模拟等研究。
BUILDER支持将现有角点网格转换为基于节点格式的网格,满足以下条件:
- 使用以下方法之一定义的角点网格:
- *CORNERS关键字
- *COORD关键字
- *XCORN/*YCORN 关键词
以下操作将满足上述条件的网格转换为Node Based网格:
1. 在“Builder”菜单栏中,选择“Reservior(油藏)|Convert to Node Based Format (转换为基于节点的格式)。
2. 单击“Yes”继续转换。将显示一条消息,提示转换已完成。单击“OK”。
以STARS自带算例sttst14.dat为例,将COORD角点网格转换为Node Based网格
转换前COORD角点网格
转换后Node Based网格(NNODES)
Keyword *NNODES specifies the number of unique nodes in the grid. A fundamental Cartesian grid with no zero-size blocks has (ni+1) • (nj+1) • (nk+1) unique nodes. A corner point grid is more flexible so nnodes depends upon the actual sharing of nodes between neighbouring blocks. Using "split nodes" to model a fault or separated layers can increase nnodes, while collapsing blocks to model a pinched-out layer can decrease nnodes.