TUFLOW Message 3546: Difference between revisions

{{TUFLOW_Message

|tuflow_message=WARNING 3546 - The SGS Materials methodology has changed for the 2022 TUFLOW release and changes in results will occur.

|alt_msg=ERROR 3546 - SGS Materials is not supported in this build for models with depth varying Mannings n.

|message_desc= The sub-grid sampling of materials (land-use) was first introduced in the 2020-10 Release as beta functionality. However, feedback and further testing indicates that additional development is required. Some significant issues have been identified including the large dynamic range in face depths over which the look-up table must be computed, the transition between sheet flow and channel flow, and the inclusion of the effects of eddy viscosity or sub-grid turbulence on the parallel flow analysis. The latter issue in particular needs further research to provide consistency between different cell sizes.