Node Data Editor

The Node Data Editor allows you to define the node, inflow and control data, and also view the most important results after you have run an analysis. The bar at the bottom of the Editor allows you to step through the entries.

Option	Description
Arrow buttons	Click the arrow buttons to scroll between the node records. The two outer arrows scroll to the first and last record.
Delete/Recall button	Click to mark the current record for deletion, or if it has already been deleted to remove the deletion flag. Deleted records are only removed from the database when you close the project and answer Yes to the question "Do you want to remove deleted records?". Once the database has been packed, it is impossible to recover the deleted records.
Record Number button	Click the current record number, i.e. "00001:00087", to search for a specific record.
Show button	Click to move the mouse cursor to the specific node for that record. The window also automatically zooms into the area around that node. The Editor will be "rolled up". Click the Restore icon to unroll it.
Close button	Click to close the window.

Node Data Page

Specify the node data.

Option	Description
Node Name	The name or reference to this node and outgoing link in up to 25 alpha-numeric characters. Searches can be performed on these names.
Overflow Node	The name of the node to which overflows must be directed. This is optional. If no overflow node is specified all overflows will be taken into local storage.
Outflow Link	The name of the link that connects this node to the downstream node.
Cover Level (m)	The level of the node (manhole) cover in metres.
Lock	Option to lock the cover level to the specified level.
Freeboard	Height that the manhole cover must be above the extracted cover level.
Manhole Conditions	The state of the node invert. This can be one of the following settings: Drop - Links placed at minimum slope. Invert - Links placed with incoming and outgoing invert levels common. Soffit - Links placed with the inside top of the culvert common. 0.075 - An absolute step between the invert levels of the incoming and outgoing links. 1/2 Pipe - A step of half of the outgoing pipe will be applied. You can limit the range of sizes where a step is applied in the Link Tables.
Minimum Cover (m)	Specify a minimum cover to the outgoing link at this node.
Node Type	Select a node type from the list. Manhole types are defined in the Default Settings.
Node Angle	Enter the angle in degrees for the node angle, or use the arrows to increase/decrease the angle. Positive values rotate the node in a counter-clockwise direction and negative values in a clockwise direction.
Auto	Select this checkbox to align the node at the same angle as the outgoing link.
Overflow Link Definition for Pressure Flow Analysis	The following options are only available if the Pressure Flow Analysis option has been selected in the Design Parameters.
Link Type	Specify a link type for the overflow link.
Diameter (mm)	Specify a size for the overflow link.

Unit Flow Inflow Page

Specify the Unit Flow inflows for this node.

Option	Description
Inflow Units	The number of contributing units of this particular class of inflow.
Inflow Class	The class of the contributing units as defined in the Unit Flow Parameters.
Point Source (l/s)	A constant inflow expressed in terms of litres/second. This item is to make provision for constant inflows, which cannot be defined by a particular inflow class.

Harmon Formula Inflow Page

Specify the Harmon Formula inflows for this node.

Option

Description

Inflow Units

The number of contributing units at this node.

Point Source (l/s)

A constant inflow expressed in terms of litres/second. This item is to make provision for constant inflows which cannot be defined by a particular inflow class.

Hydrograph Inflow Page

Specify the Inflow Hydrograph inflows for this node.

Option

Description

Inflow Units

The number of contributing units of this particular inflow hydrograph.

Inflow Hydrograph Name

The name of the inflow hydrograph can be selected from the list displayed in the dropdown list. The path to the inflow hydrograph files is specified in the Inflow Hydrograph Parameters.

Control Page

In order for this function to work, a node type must have been selected and teh network must have been analysed.

Option	Description
Maximum Inflow (l/s)	The flow into the link can be limited to a specific value, regardless of the capacity of the link. This can be caused by the size of the inlet structure.
Maximum Storage (cubic m)	If no overflow node is specified, the analysis module will assume that excess link flows will be taken up in some form of local storage i.e. a surge tank. In many instances, you would want to take a specified volume of flow up in local storage, and then pass the excess flow on to an overflow node.
Node Y Coordinate	The Y coordinate of the node or manhole.
Node X Coordinate	The X coordinate of the node or manhole.
Chamber Diameter / Chamber Length	The internal diameter of a round node's chamber or the internal length of a rectangular node's chamber.
Chamber Breadth	Only visible when the shape is rectangular. The internal breadth of the node's chamber.
Chamber Height	Maximum for 100 year values.
Wall Thickness	The inside height of the main chamber excluding the base.
Base Thickness	The wall thickness of the main chamber.

Results Page

Selected results are presented on this page for your information.

Option	Description
Node Invert	The calculated node invert level.
Node Depth	The calculated depth of the manhole from the cover level or ground level to the invert.
Cover	The calculated cover.
Inflow	The inflow from contributing units into this node.
Flow	The flow through this node i.e. the sum of the inflow from contributing units plus the flow from upstream nodes.
Overflow	The overflow at this node.