TUFLOW Message 2998: Difference between revisions
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|alt_msg=NA |
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|type=[[ERROR]] |
|type=[[ERROR]] |
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|message_desc=Model unstable. The model has gone unstable in the 2D domain. There are a varieties of reasons that a TUFLOW model may go unstable in the 2D, these can include:<br> |
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|message_desc=Model unstable. |
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* Poor topography data |
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|suggestions=???? |
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* Inappropriate timestep |
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* Poorly configured external boundary |
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* Poorly configured 1D/2D model interface |
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|suggestions=Import the messages layer in to your GIS package. A negative depth can be caused by a number of things, look at the '''_zpt_check''' file to see if there is a steep change in topography, the '''uvpt_check''' shows the Manning's n value at each cell side. Check this roughness suitable.<br> |
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A negative depth can also be caused by a badly behaving boundary condition nearby, check if this is occurring near a boundary. This can be 1D/2D, a external 2d (such as a HQ boundary) or a 2D/2D boundary.<br> |
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View the velocity vectors prior to the message are the flow patterns realistic.<br> |
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|discussion_page=* [[Talk:TUFLOW Message 2998|Discuss Message 2998]] |
|discussion_page=* [[Talk:TUFLOW Message 2998|Discuss Message 2998]] |
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|link3='' |
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Revision as of 11:48, 15 January 2014
TUFLOW Message
ERROR 2998 - Model unstable at time ",a,".
Alternate Message
NA
Message Type
ERROR
Description
Model unstable. The model has gone unstable in the 2D domain. There are a varieties of reasons that a TUFLOW model may go unstable in the 2D, these can include:
- Poor topography data
- Inappropriate timestep
- Poorly configured external boundary
- Poorly configured 1D/2D model interface
Suggestions
Import the messages layer in to your GIS package. A negative depth can be caused by a number of things, look at the _zpt_check file to see if there is a steep change in topography, the uvpt_check shows the Manning's n value at each cell side. Check this roughness suitable.
A negative depth can also be caused by a badly behaving boundary condition nearby, check if this is occurring near a boundary. This can be 1D/2D, a external 2d (such as a HQ boundary) or a 2D/2D boundary.
View the velocity vectors prior to the message are the flow patterns realistic.
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