Excel Catalog

These catalogs are defined in an excel (*.xlsx) file. Each row of the worksheet defines a complete simulation. The columns of the worksheet indicate created object types, property settings, filtering, and naming.

Not all simulation conditions can be specified explicitly through the spread sheet. These include: certain object types, multiple child geometries, boundary conditions. For these cases you are encouraged to use the Base Document column to indicate a base model with the necessary complex parameters already set. Then use the excel spread sheet to indicate the few parameters that do change over your database of systems.

Quick Start

A basic catalog is available here to download – Simple Catalog.xlsx . This is a good place to start to quickly get an idea how this capability works.

Column Names


Ignored for now


Used to group cases. Provides a filtering mechanism in the GUI.


The name of the case. Each row should have a unique value.

Base Document

The base template document to use. Leave blank for the default built-in document. If a value is provided, the template catalog is searched. See User Document Catalogs for more information. This column is also useful for defining more complex base model systems that include boundary conditions, or otherwise have many changes.


Specify the fluid model type. Can be one of:

  • SinglePhase

  • FreeSurface

  • Immiscible

  • NoFluid

Creating new objects

New static bodies are defined by specifying a new column Static 1. The value can be any geometry name from the geometry catalog. So to make a standard cylindrical tank, you could use a value of Cylindrical Tank on a given row. In this way, you specify an parent object type, and its associated child geometry type. The index allows for multiple objects to be created and referenced.

The available parent object types are:

  • Static

  • Moving

  • Particles

  • Bubbles

  • Droplets

  • Tracers

  • Scalar

  • Thermal

The available child object types are listed in the geometry catalog.

Column names reference

The column names to change an object property value must indicate the object reference and its property name. For example, a column name of Static 1 Diameter, would refer to the Diameter property of the associated geometry of the first static body. Some objects are special in that there is only 1, so the index is not necessary. For example the Fluid NewtonianNu would refer to the fluid objects kinematic viscosity property.

  • Property names should have no spaces

  • Property names are searched over the parent, and then the child object in the object reference

  • Property names are matched with a case-insensitive search

  • If a property is not found, an error will be shown at time of case creation or during the check command

  • Some properties are vector types, and therefore allow for a component name to be specified in the column name

To further illistrate this convention, see the below examples:

Static 1 Diameter
~~~~~~~~ ~~~~~~~~
    ^-                Object reference
            ^-        Property Name (no spaces)

To specify a vector location –:

Moving 1 Location X
~~~~~~~~ ~~~~~~~~ ~
    ^-                 Object reference
            ^-         Property Name
                  ^-   Property vector x-component

Some object types are special, so you may refer to them quickly -

  • SimParams -> Simulation Parameters

  • Lattice -> Main lattice object

  • Fluid -> Fluid model

Row values

Row values are specified according to their property type. The available types in the GUI are –


Simply put true or false as the value in the spread sheet. Excel recognizes this type


Indicate the value by writing the choice into the row value. For example, specify the fluid rheology type as power law with a value of PowerLaw in the cell value.

Text value

Enter the string/text value in the cell

Floating point value

Enter the floating point number in the cell


Values like -1, 0, 1, 2, 3, …

Browsing your catalog in the GUI

  1. Make sure you have setup your Template Catalog Path on the Preferences form. Save your excel catalog file in this directory. See User Document Catalogs for more information.

  2. In the main menu, click File -> New from excel catalog.

  3. Your defined catalogs will show in the below form

  4. Select your catalog, filter, and case, and click OK

  5. The case is parsed/verified. A confirmation form lists any errors found in the definition.

  6. The case is loaded into the GUI and you can continue pre-processing or simply run your case.

Select Catalog

Select the excel catalog you want to browse

Filter by Group

If you have defined groups, you may use this column to filter and down select the displayed case listing. Optional

Select Case

The case listing, determined by your catalog and filter selection. The Name value is indicated here.

Case Properties

A listing of the defined (non-empty) properties in the case. The can click Check Case to verify the case definition is valid.


As you develop your excel catalog, you can iterate on changes by saving your Excel document, then clicking Refresh on the catalog form