Message 10102

TUFLOW FV
Available since version: 2026.2.0
ERROR 10102 - Structure A-side and B-side flows are numerically inconsistent. Structure <structure>.

Description

The A-side and B-side flows computed for a hydraulic structure are numerically inconsistent, indicating that flux is not being conserved across the structure during the simulation.

Suggestions

This issue is typically associated with model instability, or incorrect structure configuration, particularly for hQh Matrix flux functions. Check the structure definition and nodestring geometry for the reported structure. Ensure the nodestring is correctly assigned to both sides of the structure and that the structure parameters are valid. The GIS output shows the location of the affected structure.