Difference between revisions of "TUFLOW Message 3008"

Revision as of 15:29, 2 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
3xxx Messages

@@ Line 1: / Line 1: @@
 {{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]]
-|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 ''l'' and the turbulence intensity ''k'' as follows:<br>
-[[File:PRANDTL.png | 150px]]
-<br>
-where ''Cc (nut_c)'' is a constant component of the viscosity, and the maximum value of ''l'' is limited by ''Cm * depth'', where ''Cm (nut_m)'' is a coefficient to define the turbulence length scale.
-|suggestions=Ensure that the parameters specified by the <font color="blue"><tt>Viscosity Coefficients </tt></font> <font color="red"><tt>== </tt></font> command are larger than zero.
 |prelink=[[TUFLOW_Message_3007|Message 3007]]

Difference between revisions of "TUFLOW Message 3008"

Revision as of 15:29, 2 March 2023

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