TUFLOW Message 3011: Difference between revisions

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{{TUFLOW_Message
|tuflow_message=ERROR 3011: - Target control number must be in range 0.001 - 1.2.
<br>
|alt_msg=NoneNA
 
|type=[[ERROR]]
|message_desc=This error message has been deprecated. If you are still receiving this message with the latest TUFLOW release, please contact [mailto:support@tuflow.com support@tuflow.com].<br>
|message_desc=The wet/dry depth threshold has been set to a value below the minimum allowed.
The Control Number Factor must be in the range 0.001 - 1.2.
|suggestions=
|suggestions=Ensure the '<tt><font color="blue">Control Number Factor</font></tt>' TCF command is within the range 0.001 - 1.2. The default value is 1.0.
The minimum permissible target timestep allowed for the HPC Solver is set with the 'Timestep Minimum' TCF command, where the default is the minimum of 0.1 seconds or the cell size divided by 200 m/s. This value must be less than the initial timestep value specified for the HPC Solver with the 'Timestep' or 'Timestep Intitial' TCF commands. The timestep can also not be less than 0.000001s.
 
Whilst it is possible to increase the default HPC Courant, shallow wave celerity and diffusion control numbers (effectively overclocking the simulation), it is strongly recommended not to increase the Control Number Factor above the default of 1.0. A hard upper limit has been set to prevent an increase of more than 20% (i.e. <tt><font color="blue">Control Number Factor</font><font color="red"> ==</font> 1.2</tt>). Increasing control numbers by more than this would be likely to lead to instability.
 
 
|discussion_page=* [[Talk:TUFLOW Message 3011|Discuss Message 3011]]
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|prelink=[[TUFLOW_Message_3010|Message 3010]]
|uplink=[[3xxx_TUFLOW_Messages|3xxx Messages]]
|nextlink=[[TUFLOW_Message_3012|Message 3012]]
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