Difference between revisions of "TUFLOW Message 2998"
| Line 3: | Line 3: | ||
|alt_msg=NA | |alt_msg=NA | ||
|type=[[ERROR]] | |type=[[ERROR]] | ||
| − | |message_desc=Model unstable. | + | |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> |
| − | |suggestions= | + | * 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.<br> | ||
| + | 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> | ||
| + | View the velocity vectors prior to the message are the flow patterns realistic.<br> | ||
|discussion_page=* [[Talk:TUFLOW Message 2998|Discuss Message 2998]] | |discussion_page=* [[Talk:TUFLOW Message 2998|Discuss Message 2998]] | ||
|link3='' | |link3='' | ||
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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 2xxx Messages
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