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32.3.28 Define/Custom Field Functions...

The Define/Custom Field Functions... menu item opens the Custom Field Function Calculator panel.



Custom Field Function Calculator Panel


The Custom Field Function Calculator panel allows you to define custom field functions based on existing functions, using simple calculator operators. Any functions that you define will be added to the list of default flow variables and other field functions provided by FLUENT.

figure   

Recall that you must enter all constants in the function definition in SI units.

See Section  30.5.1 for details about the items below.

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Controls

Definition   displays the function that you are currently defining. As you select each item from the Field Functions list or the calculator keypad, it will appear in the Definition text entry box. You cannot edit the contents of this box directly; if you want to delete part of a function, use the Delete button on the keypad.

(Calculator Buttons)   are push buttons that perform calculator operations. When you select a calculator button (by clicking on it), the appropriate symbol will appear in the Definition text entry box.

Select Operand Field Functions from   contains the available field functions and the means for selecting them.
Field Functions   contains a list from which you can select a variable to be used in the definition of a new function.

Select   enters the variable that is currently selected in the Field Functions list in the Definition field.

New Function Name   specifies the name of the function you are defining. Should you decide to change the function name after you have defined the function, you can do so in the Field Function Definitions panel, which you can open by clicking on the Manage... push button.

Define   creates the function and adds it to the list of Custom Field Functions within the drop-down list of available field functions. The Define push button is grayed out after you create a new function or if the Definition field is empty.

Manage...   opens the Field Function Definitions panel, which enables you to check, rename, save, load, and delete custom field functions.



Field Function Definitions Panel


The Field Function Definitions panel allows you to check, rename, save, load, and delete custom field functions that you defined in the Custom Field Function Calculator panel. See Section  30.5.2 for details about the items below.

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Controls

Definition   displays the function selected in the Field Functions list. This display is for informational purposes only; you cannot edit it.

Field Functions   contains a selectable list of custom field functions. When you select a function, its definition will appear in the Definition box and its name will appear in the Name text entry box.

Name   displays the name of the currently selected field function. You can enter a new name in this box if you want to rename the function.

ID   reports the ID number of the selected function. The field function at the top of the list has an ID of 0, the second function has an ID of 1, and so on.

Rename   changes the name of the selected function to the name specified in the Name text entry box.

Delete   deletes the selected field function.

Save...   opens the Select File dialog box, where you can specify a file in which to save all of the functions in the Field Functions list.

Load...   opens the Select File dialog box, where you can specify a file from which to read custom field functions (i.e., a file that you saved using the Save... button above).


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