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Line 1: {{TUFLOW_Message \|tuflow_message=ERROR 3027: - Roughness height specified but nLim less than 0. <br> \|alt_msg=~~None~~NA<br> \|type=[[ERROR]] \|message_desc=Materials may use use either fixed mannings, depth-varying mannings, or log-law roughness formulations for bed resistance. ~~\|message_desc=The limiting Manning’s n value, required for specifying bed resistance with the theoretically derived log law for shallow flows, must be greater than or equal to 0.0.~~ When utilising log-law roughness, a maximum limit for equivalent mannings number is required as the formulation becomes singular at shallow depths. ~~\|suggestions=A limiting Manning’s n value (based on the n value that would normally be applied) is specified to transition to conventional n values at greater depths.~~ This limit, provided as the fixed mannings n value in the material data, must be greater than zero. \|suggestions=Ensure that all materials that utilise log-law roughness have positive values for mannings n. \|prelink=[[TUFLOW_Message_3026\|Message 3026]]

TUFLOW Message 3027: Difference between revisions