While the CFX-Solver is running, the default setting is to plot the data as a
function of Accumulated Time Step. However, you may choose to
view the data as a function of any available variable.
For example, you may choose to plot an important monitored quantity as a function
of residual level. The existing residual plot provides information on the exact
convergence level, while this plotting feature gives another way to determine how
far you need to converge the solution, by combining residual information with
monitored quantities. For example, if you were to plot Mass Averaged
Outlet Total Pressure vs. Mass Residual, you
would see how quickly this important quantity stabilizes as a function of the
residual convergence level. You may then set a residual target for future runs that
causes the CFX-Solver to stop when the established residual levels are sufficient for
the "important monitored quantity".
You can change the variable that is plotted on the X axis for any specific plot as follows:
Right-click the plot you want to modify (see Convergence History Plots and User Point Plots) and select Monitor Properties from the shortcut menu.
On the Range Settings tab, set Plot Data By to
Specified Variableand select the variable you want to use as the X axis variable.