1D Syphons - Revision history

Emilie Nielsen: /* Matrix Flows */

2026-03-02T02:43:42Z

Matrix Flows

← Older revision		Revision as of 12:43, 2 March 2026
Line 11:		Line 11:
	Whilst TUFLOW does have a specific syphon channel, there are two approaches to model a syphon system in TUFLOW.		Whilst TUFLOW does have a specific syphon channel, there are two approaches to model a syphon system in TUFLOW.
	=== Matrix Flows ===		=== Matrix Flows ===
	The most appropriate approach to model a syphon is to use a M channel, described ~~in Section 5.9 ''M Channels (User Defined Flow Matrix)''~~ in the <u>[https://docs.tuflow.com/classic-hpc/manual/~~2025.2~~/ TUFLOW ~~Classic/HPC User~~ Manual ~~2025.0~~]</u>. A M channel can be used to define a matrix of flows between two invert levels based on their respective depths. If this matrix of flows through the syphon can be calculated, or if they are given as part of the operational instructions, then they can be input in .csv form as below, where negative values indicate flows going from downstream to upstream.		The most appropriate approach to model a syphon is to use a M channel, described in the <u>[https://docs.tuflow.com/classic-hpc/manual/latest/ TUFLOW Manual]</u>. A M channel can be used to define a matrix of flows between two invert levels based on their respective depths. If this matrix of flows through the syphon can be calculated, or if they are given as part of the operational instructions, then they can be input in .csv form as below, where negative values indicate flows going from downstream to upstream.

	[[File:M channel matrix.jpg]]		[[File:M channel matrix.jpg]]

Anne.Kolega: /* 1D Configuration */

2026-02-24T04:42:00Z

1D Configuration

← Older revision		Revision as of 14:42, 24 February 2026
Line 11:		Line 11:
	Whilst TUFLOW does have a specific syphon channel, there are two approaches to model a syphon system in TUFLOW.		Whilst TUFLOW does have a specific syphon channel, there are two approaches to model a syphon system in TUFLOW.
	=== Matrix Flows ===		=== Matrix Flows ===
	The most appropriate approach to model a syphon is to use a M channel, described in Section 5.9 ''M Channels (User Defined Flow Matrix)'' in the <u>[https://~~downloads~~.tuflow.com/~~TUFLOW~~/~~Releases~~/~~Latest/TUFLOW%20Manual~~.~~pdf~~ TUFLOW Classic/HPC User Manual 2025.0]</u>. A M channel can be used to define a matrix of flows between two invert levels based on their respective depths. If this matrix of flows through the syphon can be calculated, or if they are given as part of the operational instructions, then they can be input in .csv form as below, where negative values indicate flows going from downstream to upstream.		The most appropriate approach to model a syphon is to use a M channel, described in Section 5.9 ''M Channels (User Defined Flow Matrix)'' in the <u>[https://docs.tuflow.com/classic-hpc/manual/2025.2/ TUFLOW Classic/HPC User Manual 2025.0]</u>. A M channel can be used to define a matrix of flows between two invert levels based on their respective depths. If this matrix of flows through the syphon can be calculated, or if they are given as part of the operational instructions, then they can be input in .csv form as below, where negative values indicate flows going from downstream to upstream.

	[[File:M channel matrix.jpg]]		[[File:M channel matrix.jpg]]

Anne.Kolega: /* Matrix Flows */ updated link to manual

2026-02-24T04:30:54Z

Matrix Flows: updated link to manual

← Older revision		Revision as of 14:30, 24 February 2026
Line 11:		Line 11:
	Whilst TUFLOW does have a specific syphon channel, there are two approaches to model a syphon system in TUFLOW.		Whilst TUFLOW does have a specific syphon channel, there are two approaches to model a syphon system in TUFLOW.
	=== Matrix Flows ===		=== Matrix Flows ===
	The most appropriate approach to model a syphon is to use a M channel, described in Section 5.~~8.1~~ ''M Channels (User Defined Flow Matrix)'' in the, <u>[https://downloads.tuflow.com/TUFLOW/Releases/Latest/TUFLOW%20Manual.pdf TUFLOW ~~user~~ ~~manual~~]</u>. A M channel can be used to define a matrix of flows between two invert levels based on their respective depths. If this matrix of flows through the syphon can be calculated, or if they are given as part of the operational instructions, then they can be input in .csv form as below, where negative values indicate flows going from downstream to upstream.		The most appropriate approach to model a syphon is to use a M channel, described in Section 5.9 ''M Channels (User Defined Flow Matrix)'' in the <u>[https://downloads.tuflow.com/TUFLOW/Releases/Latest/TUFLOW%20Manual.pdf TUFLOW Classic/HPC User Manual 2025.0]</u>. A M channel can be used to define a matrix of flows between two invert levels based on their respective depths. If this matrix of flows through the syphon can be calculated, or if they are given as part of the operational instructions, then they can be input in .csv form as below, where negative values indicate flows going from downstream to upstream.

	[[File:M channel matrix.jpg]]		[[File:M channel matrix.jpg]]

Pavlina Monhartova: /* Matrix Flows */

2024-07-30T06:51:52Z

Matrix Flows

← Older revision		Revision as of 16:51, 30 July 2024
Line 11:		Line 11:
	Whilst TUFLOW does have a specific syphon channel, there are two approaches to model a syphon system in TUFLOW.		Whilst TUFLOW does have a specific syphon channel, there are two approaches to model a syphon system in TUFLOW.
	=== Matrix Flows ===		=== Matrix Flows ===
	The most appropriate approach to model a syphon is to use a M channel, described in Section 5.8.1 ''M Channels (User Defined Flow Matrix)'' in the [https://downloads.tuflow.com/TUFLOW/Releases/Latest/TUFLOW%20Manual.pdf\| TUFLOW user manual]. A M channel can be used to define a matrix of flows between two invert levels based on their respective depths. If this matrix of flows through the syphon can be calculated, or if they are given as part of the operational instructions, then they can be input in .csv form as below, where negative values indicate flows going from downstream to upstream.		The most appropriate approach to model a syphon is to use a M channel, described in Section 5.8.1 ''M Channels (User Defined Flow Matrix)'' in the, <u>[https://downloads.tuflow.com/TUFLOW/Releases/Latest/TUFLOW%20Manual.pdf TUFLOW user manual]</u>. A M channel can be used to define a matrix of flows between two invert levels based on their respective depths. If this matrix of flows through the syphon can be calculated, or if they are given as part of the operational instructions, then they can be input in .csv form as below, where negative values indicate flows going from downstream to upstream.

	[[File:M channel matrix.jpg]]		[[File:M channel matrix.jpg]]

Pavlina Monhartova: /* Matrix Flows */

2024-07-30T06:50:01Z

Matrix Flows

← Older revision		Revision as of 16:50, 30 July 2024
Line 11:		Line 11:
	Whilst TUFLOW does have a specific syphon channel, there are two approaches to model a syphon system in TUFLOW.		Whilst TUFLOW does have a specific syphon channel, there are two approaches to model a syphon system in TUFLOW.
	=== Matrix Flows ===		=== Matrix Flows ===
	The most appropriate approach to model a syphon is to use a M channel, described in Section 5.8.1 ''M Channels (User Defined Flow Matrix)'' in the [https://downloads.tuflow.com/TUFLOW/Releases/Latest/TUFLOW%20Manual.pdf\| TUFLOW user manual]. An M channel can be used to define a matrix of flows between two invert levels based on their respective depths. If this matrix of flows through the syphon can be calculated, or if they are given as part of the operational instructions, then they can be input in .csv form as below, where negative values indicate flows going from downstream to upstream.		The most appropriate approach to model a syphon is to use a M channel, described in Section 5.8.1 ''M Channels (User Defined Flow Matrix)'' in the [https://downloads.tuflow.com/TUFLOW/Releases/Latest/TUFLOW%20Manual.pdf\| TUFLOW user manual]. A M channel can be used to define a matrix of flows between two invert levels based on their respective depths. If this matrix of flows through the syphon can be calculated, or if they are given as part of the operational instructions, then they can be input in .csv form as below, where negative values indicate flows going from downstream to upstream.

	[[File:M channel matrix.jpg]]		[[File:M channel matrix.jpg]]

Abigail.lillo at 05:47, 17 July 2024

2024-07-17T05:47:44Z

← Older revision		Revision as of 15:47, 17 July 2024
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	<font size = 18>Page Under Construction</font>
	<br>
	<br>
	<br>
	== Introduction ==		== Introduction ==
	A syphon (or siphon) is a hydraulic structure used to transfer water from one location to another, typically over an elevation difference, without the need for pumping. A syphon operates based on the principle of atmospheric pressure and gravity.		A syphon (or siphon) is a hydraulic structure used to transfer water from one location to another, typically over an elevation difference, without the need for pumping. A syphon operates based on the principle of atmospheric pressure and gravity.

Par: minor addition

2024-07-17T05:41:09Z

minor addition

← Older revision		Revision as of 15:41, 17 July 2024
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	== 1D Configuration ==		== 1D Configuration ==
	~~There~~ are two approaches to model a syphon system in TUFLOW.		Whilst TUFLOW does have a specific syphon channel, there are two approaches to model a syphon system in TUFLOW.
	=== Matrix Flows ===		=== Matrix Flows ===
	The most appropriate approach to model a syphon is to use a M channel, described in Section 5.8.1 ''M Channels (User Defined Flow Matrix)'' in the [https://downloads.tuflow.com/TUFLOW/Releases/Latest/TUFLOW%20Manual.pdf\| TUFLOW user manual]. An M channel can be used to define a matrix of flows between two invert levels based on their respective depths. If this matrix of flows through the syphon can be calculated, or if they are given as part of the operational instructions, then they can be input in .csv form as below, where negative values indicate flows going from downstream to upstream.		The most appropriate approach to model a syphon is to use a M channel, described in Section 5.8.1 ''M Channels (User Defined Flow Matrix)'' in the [https://downloads.tuflow.com/TUFLOW/Releases/Latest/TUFLOW%20Manual.pdf\| TUFLOW user manual]. An M channel can be used to define a matrix of flows between two invert levels based on their respective depths. If this matrix of flows through the syphon can be calculated, or if they are given as part of the operational instructions, then they can be input in .csv form as below, where negative values indicate flows going from downstream to upstream.

Abigail.lillo: /* Matrix Flows */

2024-07-16T07:53:33Z

Matrix Flows

← Older revision		Revision as of 17:53, 16 July 2024
Line 17:		Line 17:
	The most appropriate approach to model a syphon is to use a M channel, described in Section 5.8.1 ''M Channels (User Defined Flow Matrix)'' in the [https://downloads.tuflow.com/TUFLOW/Releases/Latest/TUFLOW%20Manual.pdf\| TUFLOW user manual]. An M channel can be used to define a matrix of flows between two invert levels based on their respective depths. If this matrix of flows through the syphon can be calculated, or if they are given as part of the operational instructions, then they can be input in .csv form as below, where negative values indicate flows going from downstream to upstream.		The most appropriate approach to model a syphon is to use a M channel, described in Section 5.8.1 ''M Channels (User Defined Flow Matrix)'' in the [https://downloads.tuflow.com/TUFLOW/Releases/Latest/TUFLOW%20Manual.pdf\| TUFLOW user manual]. An M channel can be used to define a matrix of flows between two invert levels based on their respective depths. If this matrix of flows through the syphon can be calculated, or if they are given as part of the operational instructions, then they can be input in .csv form as below, where negative values indicate flows going from downstream to upstream.

	[[File:~~Syphon~~ matrix ~~w10~~.jpg~~\| 600px~~]]		[[File:M channel matrix.jpg]]

	=== Storage Nodes & Additional Losses ===		=== Storage Nodes & Additional Losses ===

Abigail.lillo at 06:35, 16 July 2024

2024-07-16T06:35:37Z

← Older revision		Revision as of 16:35, 16 July 2024
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	The following figure provides bend coefficient values for common bend types:		The following figure provides bend coefficient values for common bend types:

			[[File:Bend losses 1.jpg \|thumb\|none\|upright=5\|Table 8-4, Fluid Mechanics: Fundamentals and Applications 4th ed.(2018)]]<br>
	[[File:Bend losses.jpg]]

Abigail.lillo: /* Storage Nodes & Additional Losses */

2024-07-16T05:14:17Z

Storage Nodes & Additional Losses

← Older revision		Revision as of 15:14, 16 July 2024
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	If you have any further questions about syphons or any other aspect of TUFLOW functionality, please email TUFLOW support: support@tuflow.com		If you have any further questions about syphons or any other aspect of TUFLOW functionality, please email TUFLOW support: [mailto:support@tuflow.com?Subject=TUFLOW%201D%20weirs%20help support@tuflow.com]

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