`flxo`¶

Mass flow between two nodes is output by choosing this control statement.

Group 1 - NFLX
Group 2 - IFLX1, IFLX2 (repeated NFLX times)
Group 3 - X1, Y1, Z1 (as needed)
Group 4- X2, Y2, Z2 (as needed)

If IFLX1 < 0, then after all IFLX1 and IFLX2 values are read, coordinates X1, Y1, and Z1 are read and the node nearest to these coordinates is used. If IFLX2 < 0, coordinates for the second node are read in on another line. The code cycles through each IFLX1 and IFLX2 in this manner, reading coordinates when needed.

Results are written to the screen if tty output is enabled and to the output file iout.

Input Variable	Format	Description
AIPED	real	Same as above for AIPED under keyword flow
NFLX	integer	Number of internode mass flows to be calculated.
IFLX1	integer	First node to be used in mass flow calculation.
IFLX2	integer	Second node to be used in mass flow calculation. If IFLX2 = 0, then the node connected to IFLX1 with the greatest internodal distance is used to calculate the mass flow.
X1	real	Coordinates of the first node to be used in mass flow calculation. Used only for those nodes where IFLX1 < 0.
Y1	real
Z1	real
X2	real	Coordinates of the second node to be used in mass flow calculation. Used only for those nodes where IFLX2 < 0.
Y2	real
Z2	real

The following are examples of flxo. In these examples, one internode flux is calculated.

In the first case (top), from the node numbered 193 to the node numbered 195.

flxo
1
193	195

In the second case, between nodes closest to coordinates 0., 0., 0. m and 20., 20., 20. m.

flxo
1
-1	-7

flxo¶

`flxo`¶