3.2.2 Node Macros

A mesh in ANSYS FLUENT is defined by the position of its nodes and how the nodes are connected. The macros listed in Table  3.2.1 and Table  3.2.2 can be used to return the real Cartesian coordinates of the cell node (at the cell corner) in SI units. The variables are available in both the pressure-based and the density-based solver. Definitions for these macros can be found in metric.h. The argument Node *node for each of the variables defines a node.

Node Position

Table 3.2.1: Macros for Node Coordinates Defined in metric.h

Macro	Argument Types	Returns
NODE_X(node)	Node *node	real $x$ coordinate of node
NODE_Y(node)	Node *node	real $y$ coordinate of node
NODE_Z(node)	Node *node	real $z$ coordinate of node

Number of Nodes in a Face ( F_NNODES)

The macro F_NNODES shown in Table  3.2.2 returns the integer number of nodes associated with a face.

Table 3.2.2: Macro for Number of Nodes Defined in mem.h

Macro	Argument Types	Returns
F_NNODES(f,t)	face_t f, Thread *t	int number of nodes in a face