Pipe X Leg March Calculation Failed to Converge
A Warning message in AFT Arrow
Full Message Text
Pipe X Leg March calculation failed to continue towards convergence. (Code #321)
Explanation
The Solver failed to meet internal tolerances while marching down the pipe segments and performing compressible flow calculations. Some results may not be accurate. For more information on how the different marching methods function see the Solution Methods topic.
Required Action
Check to see if the Sonic Choking tab is present in the Output. If the pipe listed in the warning is upstream of a choke point, then it may be helpful to enter a CdA for Sonic Choking in the junction properties.
Related Topics