Difference between revisions of "TUFLOW Message 3027"
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{{TUFLOW_Message | {{TUFLOW_Message | ||
| − | |tuflow_message=ERROR 3027 | + | |tuflow_message=ERROR 3027 - Roughness height specified but nLim less than 0. |
<br> | <br> | ||
| − | |alt_msg= | + | |alt_msg=NA<br> |
|type=[[ERROR]] | |type=[[ERROR]] | ||
| − | |message_desc= | + | |message_desc=Materials may use use either fixed mannings, depth-varying mannings, or log-law roughness formulations for bed resistance. |
| − | |suggestions= | + | When utilising log-law roughness, a maximum limit for equivalent mannings number is required as the formulation becomes singular at shallow 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. | ||
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|uplink=[[3xxx_TUFLOW_Messages|3xxx Messages]] | |uplink=[[3xxx_TUFLOW_Messages|3xxx Messages]] | ||
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}} | }} | ||
Latest revision as of 10:15, 3 March 2023
TUFLOW Message
ERROR 3027 - Roughness height specified but nLim less than 0.
Alternate Message
NA
Message Type
ERROR
Description
Materials may use use either fixed mannings, depth-varying mannings, or log-law roughness formulations for bed resistance.
When utilising log-law roughness, a maximum limit for equivalent mannings number is required as the formulation becomes singular at shallow 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.
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