TUFLOW Message 2583 - Revision history

Abigail.lillo at 06:02, 5 November 2024

2024-11-05T06:02:17Z

@@ Line 3: / Line 3: @@
 |alt_msg=WARNING 2583 - Material ID "<>" has a manning's n value ("<>") greater than Wu n limit 0.100 - n value will be limited in Wu formulation.<br>
 |type=[[WARNING]]
 |uplink=[[2xxx_TUFLOW_Messages|2xxx Messages]]

Pavlina Monhartova at 05:50, 28 April 2023

2023-04-28T05:50:47Z

← Older revision		Revision as of 15:50, 28 April 2023
Line 4:		Line 4:
	\|type=[[WARNING]]		\|type=[[WARNING]]
	\|message_desc=The Wu eddy viscosity formulation is based on bed friction velocity, which in turn is dependent on manning's number. High manning's numbers produce very high viscosity values, which in turn can limit the model timestep through the diffusion or Peclet number (reported as “Nd” in the HPC output). In general, in areas where very high manning's numbers are used (for example the slowing effect of buildings may be represented as increased surface roughness), the flow velocity is much slower and the elevated viscosity has little effect, other than to slow the simulation down. An upper limit to the manning's number used in the Wu viscosity calculation was introduced in the 2023-03-AA release to limit the computed viscosity in regions of unusually high roughness. Note that this only affects the viscosity calculation, the momentum equation will continue to use the original roughness value (or lookup table) as defined in the materials file. This warning message indicates that one or more of the manning's values used exceed the limit imposed for Wu viscosity calculation. The default limit is 0.1.		\|message_desc=The Wu eddy viscosity formulation is based on bed friction velocity, which in turn is dependent on manning's number. High manning's numbers produce very high viscosity values, which in turn can limit the model timestep through the diffusion or Peclet number (reported as “Nd” in the HPC output). In general, in areas where very high manning's numbers are used (for example the slowing effect of buildings may be represented as increased surface roughness), the flow velocity is much slower and the elevated viscosity has little effect, other than to slow the simulation down. An upper limit to the manning's number used in the Wu viscosity calculation was introduced in the 2023-03-AA release to limit the computed viscosity in regions of unusually high roughness. Note that this only affects the viscosity calculation, the momentum equation will continue to use the original roughness value (or lookup table) as defined in the materials file. This warning message indicates that one or more of the manning's values used exceed the limit imposed for Wu viscosity calculation. The default limit is 0.1.
	\|suggestions=Consider if the use of materials with manning's in excess of 0.1 is really required. If it is required, then the it is possible to increase the limit used in the Wu viscosity calculation with the “<font color="blue"><tt>Viscosity Coefficients </tt></font> <font color="red"><tt>==</tt></font>” command. Note that this may result in increased model solution time. If time permits, the model could be run with the default limit, and with a higher value (the maximum manning's roughness used), and the two solutions compared for differences. If the differences are minimal then the default limit of 0.1 may be considered acceptable and this warning message disregarded.		\|suggestions=Consider if the use of materials with manning's in excess of 0.1 is really required. If it is required, then the it is possible to increase the limit used in the Wu viscosity calculation with the <font color="blue"><tt>Viscosity Coefficients </tt></font> <font color="red"><tt>==</tt></font> command. Note that this may result in increased model solution time. If time permits, the model could be run with the default limit, and with a higher value (the maximum manning's roughness used), and the two solutions compared for differences. If the differences are minimal then the default limit of 0.1 may be considered acceptable and this warning message disregarded.

	\|uplink=[[2xxx_TUFLOW_Messages\|2xxx Messages]]		\|uplink=[[2xxx_TUFLOW_Messages\|2xxx Messages]]

Emilie Nielsen at 05:49, 28 April 2023

2023-04-28T05:49:54Z

← Older revision		Revision as of 15:49, 28 April 2023
Line 4:		Line 4:
	\|type=[[WARNING]]		\|type=[[WARNING]]
	\|message_desc=The Wu eddy viscosity formulation is based on bed friction velocity, which in turn is dependent on manning's number. High manning's numbers produce very high viscosity values, which in turn can limit the model timestep through the diffusion or Peclet number (reported as “Nd” in the HPC output). In general, in areas where very high manning's numbers are used (for example the slowing effect of buildings may be represented as increased surface roughness), the flow velocity is much slower and the elevated viscosity has little effect, other than to slow the simulation down. An upper limit to the manning's number used in the Wu viscosity calculation was introduced in the 2023-03-AA release to limit the computed viscosity in regions of unusually high roughness. Note that this only affects the viscosity calculation, the momentum equation will continue to use the original roughness value (or lookup table) as defined in the materials file. This warning message indicates that one or more of the manning's values used exceed the limit imposed for Wu viscosity calculation. The default limit is 0.1.		\|message_desc=The Wu eddy viscosity formulation is based on bed friction velocity, which in turn is dependent on manning's number. High manning's numbers produce very high viscosity values, which in turn can limit the model timestep through the diffusion or Peclet number (reported as “Nd” in the HPC output). In general, in areas where very high manning's numbers are used (for example the slowing effect of buildings may be represented as increased surface roughness), the flow velocity is much slower and the elevated viscosity has little effect, other than to slow the simulation down. An upper limit to the manning's number used in the Wu viscosity calculation was introduced in the 2023-03-AA release to limit the computed viscosity in regions of unusually high roughness. Note that this only affects the viscosity calculation, the momentum equation will continue to use the original roughness value (or lookup table) as defined in the materials file. This warning message indicates that one or more of the manning's values used exceed the limit imposed for Wu viscosity calculation. The default limit is 0.1.
	\|suggestions=Consider if the use of materials with manning's in excess of 0.1 is really required. If it is required, then the it is possible to increase the limit used in the Wu viscosity calculation with the ~~“Viscosity~~ Coefficients ==” command. Note that this may result in increased model solution time. If time permits, the model could be run with the default limit, and with a higher value (the maximum manning's roughness used), and the two solutions compared for differences. If the differences are minimal then the default limit of 0.1 may be considered acceptable and this warning message disregarded.		\|suggestions=Consider if the use of materials with manning's in excess of 0.1 is really required. If it is required, then the it is possible to increase the limit used in the Wu viscosity calculation with the “<font color="blue"><tt>Viscosity Coefficients </tt></font> <font color="red"><tt>==</tt></font>” command. Note that this may result in increased model solution time. If time permits, the model could be run with the default limit, and with a higher value (the maximum manning's roughness used), and the two solutions compared for differences. If the differences are minimal then the default limit of 0.1 may be considered acceptable and this warning message disregarded.

	\|uplink=[[2xxx_TUFLOW_Messages\|2xxx Messages]]		\|uplink=[[2xxx_TUFLOW_Messages\|2xxx Messages]]

Pavlina Monhartova at 05:46, 28 April 2023

2023-04-28T05:46:45Z

← Older revision		Revision as of 15:46, 28 April 2023
Line 1:		Line 1:
	{{TUFLOW_Message		{{TUFLOW_Message
	\|tuflow_message=WARNING 2583 - Material ID "<>" contains a manning's n value ("<>") greater than Wu n limit ~~("<>")~~ - n value will be limited in Wu formulation.		\|tuflow_message=WARNING 2583 - Material ID "<>" contains a manning's n value ("<>") greater than Wu n limit 0.100 - n value will be limited in Wu formulation.
	\|alt_msg=WARNING 2583 - Material ID "<>" has a manning's n value ("<>") greater than Wu n limit ~~("<>")~~ - n value will be limited in Wu formulation.<br>		\|alt_msg=WARNING 2583 - Material ID "<>" has a manning's n value ("<>") greater than Wu n limit 0.100 - n value will be limited in Wu formulation.<br>
	\|type=[[WARNING]]		\|type=[[WARNING]]
			\|message_desc=The Wu eddy viscosity formulation is based on bed friction velocity, which in turn is dependent on manning's number. High manning's numbers produce very high viscosity values, which in turn can limit the model timestep through the diffusion or Peclet number (reported as “Nd” in the HPC output). In general, in areas where very high manning's numbers are used (for example the slowing effect of buildings may be represented as increased surface roughness), the flow velocity is much slower and the elevated viscosity has little effect, other than to slow the simulation down. An upper limit to the manning's number used in the Wu viscosity calculation was introduced in the 2023-03-AA release to limit the computed viscosity in regions of unusually high roughness. Note that this only affects the viscosity calculation, the momentum equation will continue to use the original roughness value (or lookup table) as defined in the materials file. This warning message indicates that one or more of the manning's values used exceed the limit imposed for Wu viscosity calculation. The default limit is 0.1.
	\|message_desc=
			\|suggestions=Consider if the use of materials with manning's in excess of 0.1 is really required. If it is required, then the it is possible to increase the limit used in the Wu viscosity calculation with the “Viscosity Coefficients ==” command. Note that this may result in increased model solution time. If time permits, the model could be run with the default limit, and with a higher value (the maximum manning's roughness used), and the two solutions compared for differences. If the differences are minimal then the default limit of 0.1 may be considered acceptable and this warning message disregarded.
	\|suggestions=

	\|uplink=[[2xxx_TUFLOW_Messages\|2xxx Messages]]		\|uplink=[[2xxx_TUFLOW_Messages\|2xxx Messages]]

Pavlina Monhartova at 04:57, 28 April 2023

2023-04-28T04:57:23Z

← Older revision		Revision as of 14:57, 28 April 2023
Line 4:		Line 4:
	\|type=[[WARNING]]		\|type=[[WARNING]]
	\|message_desc=		\|message_desc=
			\|suggestions=
	\|suggestions=Please contact [mailto:support@tuflow.com support@tuflow.com].

	\|uplink=[[2xxx_TUFLOW_Messages\|2xxx Messages]]		\|uplink=[[2xxx_TUFLOW_Messages\|2xxx Messages]]

Melissa.Moghanloo at 23:39, 2 March 2023

2023-03-02T23:39:06Z

← Older revision		Revision as of 09:39, 3 March 2023
Line 6:		Line 6:
	\|suggestions=Please contact [mailto:support@tuflow.com support@tuflow.com].		\|suggestions=Please contact [mailto:support@tuflow.com support@tuflow.com].

	\|prelink=[[TUFLOW_Message_2582\|Message 2582]]
	\|uplink=[[2xxx_TUFLOW_Messages\|2xxx Messages]]		\|uplink=[[2xxx_TUFLOW_Messages\|2xxx Messages]]
	\|nextlink=[[TUFLOW_Message_2600\|Message 2600]]
	}}		}}

Emilie Nielsen at 03:58, 24 February 2023

2023-02-24T03:58:45Z

← Older revision		Revision as of 13:58, 24 February 2023
Line 1:		Line 1:
	{{TUFLOW_Message		{{TUFLOW_Message
			\|tuflow_message=WARNING 2583 - Material ID "<>" contains a manning's n value ("<>") greater than Wu n limit ("<>") - n value will be limited in Wu formulation.
	\|tuflow_message=WARNING 2583 -
			\|alt_msg=WARNING 2583 - Material ID "<>" has a manning's n value ("<>") greater than Wu n limit ("<>") - n value will be limited in Wu formulation.<br>
	\|alt_msg=NA
	\|type=[[WARNING]]		\|type=[[WARNING]]
	\|message_desc=~~???~~		\|message_desc=
			\|suggestions=Please contact [mailto:support@tuflow.com support@tuflow.com].
	\|suggestions=???

	\|prelink=[[TUFLOW_Message_2582\|Message 2582]]		\|prelink=[[TUFLOW_Message_2582\|Message 2582]]

ElizaCollison at 01:54, 16 December 2022

2022-12-16T01:54:28Z

← Older revision		Revision as of 11:54, 16 December 2022
Line 6:		Line 6:
	\|suggestions=???		\|suggestions=???

	\|prelink=[[~~TUFLOW_Message_2570~~\|Message ~~2570~~]]		\|prelink=[[TUFLOW_Message_2582\|Message 2582]]
	\|uplink=[[2xxx_TUFLOW_Messages\|2xxx Messages]]		\|uplink=[[2xxx_TUFLOW_Messages\|2xxx Messages]]
	\|nextlink=[[TUFLOW_Message_2600\|Message 2600]]		\|nextlink=[[TUFLOW_Message_2600\|Message 2600]]

ElizaCollison: Created page with "{{TUFLOW_Message |tuflow_message=WARNING 2583 - |alt_msg=NA |type=WARNING |message_desc=??? |suggestions=??? |prelink=Message 2570 |uplink=2xxx..."

2022-12-12T07:47:57Z

Created page with "{{TUFLOW_Message |tuflow_message=WARNING 2583 - |alt_msg=NA |type=WARNING |message_desc=??? |suggestions=??? |prelink=Message 2570 |uplink=2xxx..."

New page

{{TUFLOW_Message
|tuflow_message=WARNING 2583 -
|alt_msg=NA
|type=[[WARNING]]
|message_desc=???
|suggestions=???

|prelink=[[TUFLOW_Message_2570|Message 2570]]
|uplink=[[2xxx_TUFLOW_Messages|2xxx Messages]]
|nextlink=[[TUFLOW_Message_2600|Message 2600]]
}}