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TUFLOW Message 3008: Difference between revisions

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{{TUFLOW_Message
|tuflow_message=ERROR 3008: nut_m- tau0 must be >= 0. <br>
|alt_msg=ERROR 3008: nut_c- muLow must be >= 0.<br>
ERROR 3008 - muHigh must be >= <number>.
<br>
|alt_msg=
|type=[[ERROR]]
|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.
|message_desc=''SMAGORINSKY turbulence model:''<br>
|suggestions=Ensure the supplied viscosity coefficients are correct.
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>
 
''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 <font color="blue"><tt>Viscosity Coefficients </tt></font> <font color="red"><tt>== </tt> command is larger than zero.
 
|discussion_page=* [[Talk:TUFLOW Message 3008|Discuss Message 3008]]
|link3=''
|link4=''
|prelink=[[TUFLOW_Message_3007|Message 3007]]
|uplink=[[3xxx_TUFLOW_Messages|3xxx Messages]]
|nextlink=[[TUFLOW_Message_3009|Message 3009]]
}}
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