Under the Pipe Wall Coefficient Group tab, you have the ability to define the pipe groups to be used in the calibration analysis. In addition, you can modify any pipe group previously identified, input ranges of acceptable pipe wall coefficients for each pipe group, assign a level for each pipe group, or color-code each pipe group.

Menu  

Mode

  • Water Quality - This menu item activates the Water Quality dialog box to specify the desired pipe wall coefficient groups, junction concentration field measurements, system constraints and optimization options to run a water quality model calibration.

  • Exit - Exit the WQ Calibrator dialog box.

Run

  • Start - Launch the calibration run based on the input parameters specified and the Run tab will appear on the screen.

  • Stop - Interrupt the calibration run. You can stop the optimization at any time and review your calibration results.

  • Options - Launch the Calibration Options dialog box which controls optimization properties and simulation options. With this command you can specify the convergence parameters, advanced GA options, and the objective function type.

Help

  • Contents - Launch the Contents tab of the WQ Calibrator online help.

  • Index - Launch the Index tab of the WQ Calibrator online help.

  • About WQ Calibrator - Launch the About WQ Calibrator dialog box which summarizes the version properties and other information.

Pipe Wall Coefficient Group Tab

Pipe Group Database Field - Select from the drop-down list the data field column ID containing the pipe wall coefficient group IDs. The drop-down list will display all user-defined data columns in the Pipe Information database table (EDIT->DB TABLES). The pipe group field must be numeric and contain a value that represents a pipe classification (e.g., PVC constructed between 1970 and 1980).

New - Use the New button to create a new data field column in the Pipe Information database table containing the group ID for every pipe in the network for which the wall coefficient is to be calibrated. When the New button is selected you are prompted to enter the New Pipe Group Database Field for the new database column.

DB Edit - Selecting DB Edit will open the DB Editor and allow access to the Pipe Information database table.

Active Group Table

Row Number - Indicates the row number of the active group table.

Color - Double click on the color column to select the color associated with a pipe group.

Min - Minimum bound for the wall coefficient. This value must be entered for each pipe calibration group.

Max - Maximum bound for the wall coefficient. This value must be assigned for each pipe calibration group.

Levels - Number of partitions between the minimum and maximum values specified for incrementing the pipe wall coefficient. This value must be specified for each pipe calibration group. Feasible pipe wall coefficient values will be determined using equal increments of (Max – Min) / Levels.

Result - Displays the calculated wall coefficient value for the associated pipe group.

Pipe IDs - List the individual pipe IDs included in the associated pipe group.

Min, Max and Results values are considered absolute values. Their sign is dependent upon the sign entered as the Global Wall Coefficient assigned in the Simulation Options. For example, if the Global Wall Coefficient entered into the Simulation Options is -1 representing a water quality decay, the actual values of Min, Max and Results are considered negative values and in this case, the results are exported to the database as negative numbers. Therefore, the WQ Calibrator can be used to calibrate on both water quality growth and decay.


Clear IDs - Delete all pipes in the Active Pipe Group. To delete more than one pipe group, highlight the desired group numbers, and then click on the Clear IDs button.

Color Map - Color-code all pipes in the Active Pipe Group with the Active Pipe Group associated color. To color code more than one pipe group, highlight the desired group numbers, and then click on the Color Map button. Click on the Color box to change the color of the pipes in the Active Pipe Group.

Insert Pipe - Add pipes to the Active Pipe Group based on the choice selected from the corresponding drop-down list. If the Individual Element option is selected, then you can add one pipe by clicking on the individual pipe. If the Elements in Selection option is selected, then you can add one or more pipes by clicking on the individual pipes or by placing a graphical window around the desired group of pipes. If the Element IDs option is selected, then you must key in the alphanumeric ID or label for each of the pipe to be added to the Active Pipe Group.

Refresh IDs - Display the pipe IDs in each of the pipe groups to reflect any changes made using the Insert (+) Pipes or Remove (-) Pipes options.

Reset Map - Reset the color of all pipes to their default color.

Remove - Pipes - Remove pipes from the Active Pipe Group based on the choice selected from the corresponding drop-down list. If the Individual Element option is selected, then you can remove one pipe by clicking on the individual pipe. If the Elements in Selection option is selected, then you can remove one or more pipes by clicking on the individual pipes or by placing a graphical window around the desired group of pipes. If the Element IDs option is selected, then you must key in the alphanumeric ID or label for each of the pipe to be removed from the Active Pipe Group.

Color Selection Box - Double click on the Color Selection Box to select the color.