Difference between revisions of "TUFLOW Message 3026"

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(Created page with "{{TUFLOW_Message |tuflow_message=ERROR 3026: kappa must be >= 0. <br> |alt_msg=None |type=ERROR |message_desc=Kappa (κ) required for specifying the bed resistance with...")
 
 
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|tuflow_message=ERROR 3026: kappa must be >= 0.
 
|tuflow_message=ERROR 3026: kappa must be >= 0.
 
<br>  
 
<br>  
|alt_msg=None
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|alt_msg=NA<br>
  
 
|type=[[ERROR]]  
 
|type=[[ERROR]]  
|message_desc=Kappa (κ) required for specifying the bed resistance with the theoretically derived log law for shallow flows must be greater than or equal to 0.0.
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|message_desc=Materials may use use either fixed mannings, depth-varying mannings, or log-law roughness formulations for bed resistance.
|suggestions=κ is typically in the range 0.38 to 0.42 (recomend 0.4)
+
When utilising log-law roughness, a value for kappa of less than zero is not permitted.
 +
kappa is typically in the range 0.38 to 0.42 (recommend 0.4).
 +
|suggestions=Ensure that all materials that utilise log-law roughness have positive values for kappa.
  
|discussion_page=* [[Talk:TUFLOW Message 3026|Discuss Message 3026]]
 
|link3=''
 
|link4=''
 
|prelink=[[TUFLOW_Message_3025|Message 3025]]
 
 
|uplink=[[3xxx_TUFLOW_Messages|3xxx Messages]]
 
|uplink=[[3xxx_TUFLOW_Messages|3xxx Messages]]
|nextlink=[[TUFLOW_Message_3027|Message 3027]]
 
 
}}
 
}}

Latest revision as of 10:15, 3 March 2023

TUFLOW Message
ERROR 3026: kappa must be >= 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 value for kappa of less than zero is not permitted. kappa is typically in the range 0.38 to 0.42 (recommend 0.4).

Suggestions
Ensure that all materials that utilise log-law roughness have positive values for kappa.


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