Message 10026

TUFLOW FV
Available since version: 2026.2.0
ERROR 10026 - Must specify a bc update time for a wave_coupled bc.

Description

A coupled wave boundary condition requires a BC update time interval to be specified but none has been provided. The update time controls how frequently the wave model exchanges data with TUFLOW FV.

Suggestions

Specify the coupling update interval using one of the following:

  • Add a BC Default Update DT == command at the top of the control file to set a default update interval for all boundary conditions, or
  • Add a BC Update dt == command within the wave boundary condition block to set the interval for that boundary condition only.

The update interval should match the SWAN model computation timestep.