Reservoir data fields

Node ID

Name of the node

YES

YES

1

30

0

node_id

Text

Area Code

The Area Code parameter is used for closer spatial modelling of demand - each node is allocated to an area and demand can then be factored by area.

The factor is set using the Demand Scaling Editor.

YES

YES

1

30

0

area

Text

Asset ID

For reference only. Designed as a reference to an asset database, but could be used for anything.

YES

YES

1

30

0

asset_id

Text

Fire Zone

The Fire Zone field is used when checking minimum pressure constraints during Hydrant Testing simulations. Different pressure constraints may be applied to nodes in a given Fire Zone to nodes outside of the Fire Zone. See Fire Flow Data for more details.

YES

YES

1

30

0

fire_zone

Text

System Type

For information. Type in a system type or select an option from the dropdown list:

YES

YES

1

40

0

system_type

Text

Isolation Area

Area identifier used to identify groups of objects to be closed when carrying out a Critical Link Analysis.

YES

YES

1

30

0

isolation_area

Text

X

X coordinate

YES

YES

1

2

XY

x

Double

Y

Y coordinate

YES

YES

1

2

XY

y

Double

Elevation

Elevation above datum of pipe invert.

YES

YES

1

2

Z

z

Double

-999

9999

Ground Level

Elevation above datum of ground surface.

YES

YES

1

2

Z

ground_level

Double

-999

9999

Highest Property Level

Elevation above datum level of the highest property supplied by the node

YES

YES

1

2

Z

highest_property

Double

-999

9999

Depth Volume

The depth/volume grid provides a description of the reservoir storage capacity by defining storage volume at a series of depths.

The depth/volume grid can only be edited from the Reservoir Parameters Page of the Reservoir Property Sheet.

Please Note

Linear interpolation is used between points in the depth / volume grid.

A Depth/Volume data flag can be set to indicate the source and/or accuracy of the depth and volume data in the grid.

Database Table Name: wn_reservoir_depth_volume

NO

YES

2

0

depth_volume

Array

Land Use Areas

NO

YES

2

0

landuse_areas

Array

Reservoir Bottom Level

Level of the bottom of the reservoir (above datum).

The Reservoir Bottom Level may or may not be the same value as the node elevation. If reservoir bottom level is higher than the node elevation, this indicates a water tower and the node is represented on the GeoPlan by a water tower symbol .

YES

YES

2

2

Z

bottom_level

Double

-999

9999

Minimum Operating Level

The minimum operating level of the reservoir. The reservoir will not drain below this level.

YES

YES

2

2

Z

minimum_level

Double

-999

9999

Top Water Level

Maximum water level of the reservoir (above datum)

YES

YES

2

2

Z

top_level

Double

-999

9999

WQ Reaction Coefficient

Reaction rate parameter used to calculate the change in concentration of a substance as it reacts with material in the reservoir.

Please Note

Source dependent bulk coefficient values may be specified at individual nodes which may override or scale the reservoir WQ Reaction Coefficient value when calculating reaction rates for water that entered the system at the node.

YES

YES

2

2

bulk_coeff

-0.25

-10

10

Demand By Category

Displayed on Node Demand Page only.

The Demand box contains a grid where you can define the Existing Demand for the node. Total demand, or demand per property is defined for each User Category supplied from the node.

The demand grid can only be edited from the Node Demand Page so full details on using this grid are included there.

Database Table Name: wn_node_demand_by_category

NO

YES

3

0

demand_by_category

Array

Nominal Pressure

Average pressure value used for Pressure Related Demand simulations.

The value of demand corresponds to standard service pressure - average pressure in normal circumstances. This parameter allows you to state the likely value of service pressure for each node.

If the pressure available at each node differs from its set value during the simulation,all demands will be changed accordingly (the lower the pressure, the lower the consumption or loss on the node).

This adjustment of demand and loss is only activated when the Pressure Related Demand option is checked in the Schedule Hydraulic Run View and percentage of demand that is pressure related has been defined in the Demand Diagram.

Tne Nominal Pressure data field can be updated automatically from previous simulations. See Updating Nominal Pressures for more information.

Please Note

You are advised to experiment carefully with this option since it is dependent on accurate ground levels and working pressures. The feature has been included since it is obviously important in practice but with a warning to the user to proceed with care! Bear in mind that with the pressure-related demand option activated, total demand cannot be predicted accurately

YES

YES

3

1

WN_P

nominal_average_pressure

Leakage Loss

Flow loss via leakage. Runs at a constant rate during the simulation

YES

YES

3

2

WN_DQ

leakage_loss

Total Demand

The total demand at a node averaged over 24 hours; calculated using the current Demand Diagram.

Please Note

The value reported in the Total Demand field will depend on whether a Demand Diagram is open, and whether demand categories assigned to nodes are present in the current Demand Diagram.

YES

YES

3

3

WN_DQ

total_demand

Total Connections

The number of customer connections attributed to node. This field can be automatically populated by using the Set Total Connections option from the Model menu.

YES

YES

3

0

total_connections

InfoNet Unique ID

The InfoNet Unique ID and InfoNet Network ID are unique identifiers associated with the corresponding object and network in an InfoNet database. When importing from InfoNet, these identifiers can be copied from the InfoNet database in order to maintain links between the two networks.

YES

YES

NO

0

asset_uid

GUID

InfoNet Network ID

See InfoNet Unique ID

NO

YES

NO

0

asset_network_uid

GUID

Initial Depth

Initial depth in the reservoir at the start of the simulation.

YES

YES

12

2

Y

initial_depth

Double

0.00001

WQ Mixing Model

Type of Water Quality model used to simulate mixing within the Reservoir.

See Water Quality Mixing Controls for further details.

YES

YES

12

0

mixing_model

Integer

0

Inlet-Outlet Compartment Volume Fraction (%)

Applicable to the Two Compartment and Three Compartment Mixing Models.

The fraction of the total Reservoir volume which makes up the Inlet / Outlet Compartment of the mixing model.

See Water Quality Mixing Controls for further details.

YES

YES

12

2

io_vol_fraction

Dead-Zone Compartment Volume Fraction (%)

Applicable to the Three Compartment Mixing Model.

The fraction of the total Reservoir volume which makes up the Dead Zone Compartment of the mixing model.

See Water Quality Mixing Controls for further details.

YES

YES

12

2

deadzone_vol_fraction

Dead-Main Exchange Rate

Applicable to the Three Compartment Mixing Model.

Rate at which water is exchanged between the Dead Zone and the Main Zone of the mixing model.

See Water Quality Mixing Controls for further details.

YES

YES

12

2

WN_DMXR

deadmain_exchange_rate

0.0

Cost Management

Check the Cost Management box to include the reservoir Min Volume and Max Volume and End Volume constraints for use in a Cost Management Simulation or in a BalanceNet Simulation respectively.

YES

YES

12

0

optimise

Boolean

Min Volume (%)

A BalanceNet Simulation and Cost Management Simulation constraint.

The target minimum volume to be maintained at the reservoir.

YES

YES

12

1

opt_min_volume

65

Max Volume (%)

A BalanceNet Simulation and Cost Management Simulation constraint.

The target maximum allowable volume at the reservoir.

YES

YES

12

1

opt_max_volume

90

End Volume (%)

A BalanceNet Simulation and Cost Management Simulation constraint.

The target volume to be achieved at the end of the simulation.

Click the Select and Find Controlled Objects in GeoPlan button to select and highlight on the GeoPlan all the pump stations and valves in the network that are controlled by the level in the reservoir.

YES

YES

12

1

opt_target_volume

Live Data Point ID

Name of the associated Live Data Point

YES

YES

13

100

0

live_data_point_id

Text

Keep Local Demand

This checkbox decides whether local demand is to be applied to the node during the simulation

• checked - any demand assigned to the node on the Node Demand Page (eg customer point demand), will be applied in addition to any Exceptional Flow

• unchecked - The only demand that will be applied to the node will be Exceptional Flow. (At time steps when Exceptional Flow is zero, local demand will be applied).

YES

YES

13

keep_local_demand

Boolean

Initial Concentration

The initial concentration of the substance being tested at the start of the simulation. Only one substance can be tested at a time.

The figure is an initial concentration. This will be washed away over time.

YES

YES

14

2

WN_C

initial_concentration

0

9999

SourceType

Method by which concentration profile defined in the Water Quality grid is applied during the simulation.

YES

YES

14

0

wq_source_type

Integer

0

Initial Age of Water (hr)

Age of water at the start of the simulation

YES

YES

14

2

initial_age

Double

0

Date-Time/Concentration Grid

The concentration of pollutant entering the system at this node between the Water Quality start and end times. This concentration is fixed, and does not depend on flow rate.

Database Table Name: wn_ctl_node_wq_conc

NO

YES

14

0

wq_profile

Array

Date-Time/Mass Flow Grid

Mass flow profile grid displayed when Additional Mass Flow is selected in the Source Type field.

The flow rate of pollutant entering the system at this node between the Water Quality start and end times. This mass flow is fixed, and does not depend on flow rate.

Database Table Name: wn_ctl_node_wq_flow

NO

YES

14

0

wq_flow_profile

Array

Linear WQ Profile

This checkbox decided if values in the Water Quality Grid are interpolated.

• checked - linear interpolation is carried out between values

• unchecked - the concentration is the initial concentration up to the first time point. The concentration changes at each time point, and maintains the value set at that time point until the next time point is reached. The concentration at the last time point applies until the end of the simulation.

YES

YES

14

0

linear_wq_profile

Boolean

0

Before First Point (water quality profile)

YES

YES

14

0

before_wq_profile

Integer

2

After Last Point (water quality profile)

YES

YES

14

0

after_wq_profile

Integer

0

Repeat Profile (water quality profile)

Check the Repeat Profile box to repeat a profile (from 00:00 for the selected Repeat Period) for the duration of the simulation.

IMPORTANT

When using the Repeat Profile option; if the defined profile spans over the selected Repeat Period, the profile will not be repeated.

YES

YES

14

0

repeat_wq_profile

Boolean

0

Repeat Period (water quality profile)

Profile period which will be repeated throughout simulation, if the Repeat Profile box is checked.

YES

YES

14

0

repeat_wq_period

Integer

0

Method by which Bulk Coefficient is applied to water entering the system at the node:

Reaction rate parameter used to calculate the change in concentration of a substance as it reacts with material in the bulk flow.

The value specified here is applied to water entering the system at the node.

The bulk coefficient has a positive value if the concentration of the substance grows over time, and a negative value if the concentration decays over time.

Method by which Res Bulk Coefficient is applied to water entering the system at the node:

Reaction rate parameter used to calculate the change in concentration of a substance as it reacts with material in a reservoir.

The value specified here is applied to water entering the system at the node.

The bulk coefficient has a positive value if the concentration of the substance grows over time, and a negative value if the concentration decays over time.

Initial turbidity at node at start of simulation.

See Water Quality - Turbidity Analysis for further information.

Method by which turbidity profile defined in the Turbidity grid is applied during the simulation.

See Water Quality - Turbidity Analysis for further information.

Database Table Name: wn_ctl_node_wq_turb

A series of time / turbidity pairs that define the turbidity profile at the node. These values can be interpolated, depending on the state of the Linear Profile flag.

See Water Quality - Turbidity Analysis for further information.

This checkbox decides if values in the Turbidity profile grid are interpolated:

• checked - linear interpolation is carried out between values

• unchecked - The value entered in the grid changes at each time point, and is maintained until the next time point is reached.

Check the Repeat Profile box to repeat a profile (from 00:00 for the selected Repeat Period) for the duration of the simulation.

IMPORTANT

When using the Repeat Profile option; if the defined profile spans over the selected Repeat Period, the profile will not be repeated.

Profile period which will be repeated throughout simulation, if the Repeat Profile box is checked.

Date-Time/Flow Grid

A series of time / flow pairs that define the exceptional flow time varying profile at the node. These values can be interpolated, depending on the state of the Linear Profile flag.

Database Table Name: wn_ctl_node_xd_flow

NO

YES

16

0

xd_flow

Array

Linear Profile

This checkbox decides if values in the profile grid are interpolated.

• checked - linear interpolation is carried out between values

• unchecked - The value entered in the grid changes at each time point, and is maintained until the next time point is reached.

YES

YES

16

0

linear_profile

Boolean

0

Before First Point (exceptional flow profile)

YES

YES

16

0

before_xd_profile

Integer

2

After Last Point (exceptional flow profile)

YES

YES

16

0

after_xd_profile

Integer

0

Repeat Profile (exceptional flow profile)

Check the Repeat Profile box to repeat a profile (from 00:00 for the selected Repeat Period) for the duration of the simulation.

IMPORTANT

When using the Repeat Profile option; if the defined profile spans over the selected Repeat Period, the profile will not be repeated.

YES

YES

16

0

repeat_xd_profile

Boolean

0

Repeat Period (exceptional flow profile)

Profile period which will be repeated throughout simulation, if the Repeat Profile box is checked.

YES

YES

16

0

repeat_xd_period

Integer

0

A change in pressure at the fixed head will produce a transient.

Check this option to enable Transient Simulation fields.

Transient Simulation field.

Profile defining pressure variation at the well at a time relative to the start of the simulation.

Database Table Name: wn_ctl_iwts_surge_pres_tme

Notes

You can keep freeform notes about any object in your network. The notes field can be up to 64,000 characters in size, or about 10 pages of printed text.

NO

YES

18

0

notes

Memo

Node ID

Name of the node

YES

YES

1

30

0

node_id

Text

Asset ID

For reference only. Designed as a reference to an asset database, but could be used for anything.

YES

YES

1

30

asset_id

Text

XD Flow Rate

This field is obsolete and is not displayed in the interface. This data is now entered in the Exceptional Flow Grid.

YES

YES

NO

2

WN_Q

exceptional_flow

XD Start Date & Time

This field is obsolete and is not displayed in the interface. This data is now entered in the Exceptional Flow Grid.

YES

YES

NO

0

xd_start_date_time

XD End Date & Time

This field is obsolete and is not displayed in the interface. This data is now entered in the Exceptional Flow Grid.

YES

YES

NO

0

xd_end_date_time

Time Dependent Concentration

This field is obsolete and is not displayed in the interface. This data is now entered in the Water Quality Grid.

YES

YES

NO

2

WN_C

time_related_concentration

0

9999

WQ Start Date & Time

This field is obsolete and is not displayed in the interface. This data is now entered in the Water Quality Grid.

YES

YES

NO

0

wq_start_date_time

WQ End Date & Time

This field is obsolete and is not displayed in the interface. This data is now entered in the Water Quality Grid.

YES

YES

NO

0

wq_end_date_time

Hydrant Operation

This field is obsolete and is not displayed in the interface. It was previously used when hydrant flow data was entered in the Exceptional Flow Grid. The box was checked to switch between exceptional flow and hydrant flow modelling. There are now separate grids for exceptional flow and hydrant flow.

YES

YES

NO

0

hydrant_flow

Boolean

Exceptional Flow

A read only check box displayed only on the grid view. This box is checked if data has been entered in the Exceptional Flow Grid on the property sheet

NO

YES

NO

0

exf_selected

Boolean

Water Quality

A read only check box displayed only on the grid view. This box is checked if data has been entered in the Water Quality Grid on the property sheet

NO

YES

NO

0

wqc_selected

Boolean