Difference between revisions of "TUFLOW Message 1262"
Jump to navigation
Jump to search
| Line 3: | Line 3: | ||
|alt_msg=NA | |alt_msg=NA | ||
|type=[[WARNING]] | |type=[[WARNING]] | ||
| − | |message_desc=Manning's n value assigned to channel | + | |message_desc=Manning's n value assigned to channel is outside normal range. |
|suggestions=Check Manning's n value for channel. If material values are defined in the XZ cross-section ("M" flag), the n_or_n_F attribute in the 1d_nwk is a multiplication factor and should be set to 1 (this may be adjusted as part of the calibration process). This can occur if a the multiplication value is set to a typical Mannings value (e.g. 0.04) and materials are defined in the XZM cross-section. In this case the Mannings n value may become 0.04 x 0.04 = 0.0016! | |suggestions=Check Manning's n value for channel. If material values are defined in the XZ cross-section ("M" flag), the n_or_n_F attribute in the 1d_nwk is a multiplication factor and should be set to 1 (this may be adjusted as part of the calibration process). This can occur if a the multiplication value is set to a typical Mannings value (e.g. 0.04) and materials are defined in the XZM cross-section. In this case the Mannings n value may become 0.04 x 0.04 = 0.0016! | ||
|discussion_page=* [[Talk:TUFLOW Message 1262|Discuss Message 1262]] | |discussion_page=* [[Talk:TUFLOW Message 1262|Discuss Message 1262]] | ||
Revision as of 09:32, 2 February 2011
TUFLOW Message
WARNING 1262 - Manning's n value of ",a," for channel ",a," is unusually low or high.
Alternate Message
NA
Message Type
WARNING
Description
Manning's n value assigned to channel is outside normal range.
Suggestions
Check Manning's n value for channel. If material values are defined in the XZ cross-section ("M" flag), the n_or_n_F attribute in the 1d_nwk is a multiplication factor and should be set to 1 (this may be adjusted as part of the calibration process). This can occur if a the multiplication value is set to a typical Mannings value (e.g. 0.04) and materials are defined in the XZM cross-section. In this case the Mannings n value may become 0.04 x 0.04 = 0.0016!
| Up |
|---|
 1xxx Messages
|