Difference between revisions of "TUFLOW Message 3008"

From Tuflow
Jump to navigation Jump to search
 
(6 intermediate revisions by 3 users not shown)
Line 1: Line 1:
 
{{TUFLOW_Message
 
{{TUFLOW_Message
−
|tuflow_message=ERROR 3008: nut_m must be >= 0. <br>
+
|tuflow_message=ERROR 3008 - tau0 must be >= 0.
−
ERROR 3008: nut_c must be >= 0
+
|alt_msg=ERROR 3008 - muLow must be >= 0.<br>
−
<br>  
+
ERROR 3008 - muHigh must be >= <number>.
−
|alt_msg=
 
 
|type=[[ERROR]]  
 
|type=[[ERROR]]  
−
|message_desc=''SMAGORINSKY turbulence model:''<br>
+
|message_desc=For the non-Newtonian viscosity formulation both tau0 and muLow cannot be negative. Further, the upper limit muHigh cannot be less than muLow.
−
When SMAGORINSKY turbulence model is used, ''nut_m'' is the Smagorinsky coefficient and ''nut_c'' is a constant eddy viscosity component. These two parameter must be >=0.<br><br>
+
|suggestions=Ensure the supplied viscosity coefficients are correct.  
  
−
''PRANDTL turbulence model:''<br>
 
−
If the PRANDTL turbulence model is selected, the viscosity is modelled based on the turbulence length scale ''lm'' and the turbulence intensity ''k'' as follows:<br>
 
−
 
−
<br>
 
−
where ''nut_c'' is a constant component of the viscosity, and the maximum value of ''lm'' is limited by  ''nut_m * depth'', where ''nut_m'' is a coefficient to define the turbulence length scale.
 
−
|suggestions=Make sure the parameters specified by the '''Viscosity Coefficients''' command is .
 
−
 
−
|discussion_page=* [[Talk:TUFLOW Message 3008|Discuss Message 3008]]
 
−
|link3=''
 
−
|link4=''
 
−
|prelink=[[TUFLOW_Message_3007|Message 3007]]
 
 
|uplink=[[3xxx_TUFLOW_Messages|3xxx Messages]]
 
|uplink=[[3xxx_TUFLOW_Messages|3xxx Messages]]
−
|nextlink=[[TUFLOW_Message_3009|Message 3009]]
 
 
}}
 
}}

Latest revision as of 10:10, 3 March 2023

TUFLOW Message
ERROR 3008 - tau0 must be >= 0.

Alternate Message
ERROR 3008 - muLow must be >= 0.
ERROR 3008 - muHigh must be >= <number>.

Message Type
ERROR

Description
For the non-Newtonian viscosity formulation both tau0 and muLow cannot be negative. Further, the upper limit muHigh cannot be less than muLow.

Suggestions
Ensure the supplied viscosity coefficients are correct.


Up
Go-up.png 3xxx Messages
Retrieved from "https://wiki.tuflow.com/w/index.php?title=TUFLOW_Message_3008&oldid=32497"