2.3. The Grid File

When a run is first created, or when the grid file is removed from an existing run, double-click the icon (or right-click to open a drop-down menu) to assign it to the grid file:

A window then opens for the grid file selection. Supported formats are recognized automatically from the filename terminator. The supported filename terminators are: .cas(.h5) (Fluent); .msh (Fluent, mesh only); .res (CFX); mcfd.inp (CFD++), .case (CCM+ via EnSight), .uns (ICEM CFD domain file). If the previous file name terminators are omitted, the file will be treated as a FENSAP format file. For the description of the FENSAP file format, refer to FENSAP-ICE File Formats.

Figure 2.6: Grid Selection Menu

The grid file can either be copied into the run directory, or a link to it can be created to save disk space, particularly if the same grid is used for multiple runs. Once the grid file is assigned, the broken grid icon will be replaced with a pristine icon, and the name of the associated file will appear underneath.

Note: Should the grid not be defined, the config icon of the run turns grey.

2.3.1. Cylindrical to Cartesian Coordinates Conversion

FENSAP-ICE supports grids in both Cartesian and Cylindrical coordinates. However, the menu File → Import grid/data with the FENSAP option can be used to convert the coordinates from Cylindrical to Cartesian before starting the calculation.

2.3.2. Converting the Grid Coordinates to Meters

Important: The grid coordinates provided to FENSAP-ICE should be in meters. If the coordinates are in inches or feet, they should be converted using the File → Import grid/data menu, with the FENSAP option. Follow the sequence of prompts to convert the grid coordinates to meters.

Figure 2.7: Grid Converter

2.3.3. Importing a Grid from Fluent or Other Solvers

Grid and solution files generated by Fluent can also be imported. Select the File → Import grid/data menu and use the Fluent option. Follow the sequence of steps to automatically convert the Fluent grid and/or the solution file into FENSAP format. Fluent is a registered trademark of Ansys, Inc..

Note: Recommendations to set up a Fluent air calculation for icing purposes are provided in Recommendations to Set up a Fluent Calculation. Both .dat(.h5) and .cas(.h5) files must be in the same directory.

2.3.4. Menu Options

The following list of actions appears when right-mouse clicking a Grid icon:

Table 2.4: Menu Options

Define	Opens the graphical and input parameter windows.
View with...	Opens a visualization tool browser.
View with FIELDVIEW	Opens the Viewmerical post-processor for grid visualization.
Copy	Copy the current run or input/output file.
Paste	Paste the copied item to its destination. Copy/Paste is equivalent to the drag & drop operation.
Runs (Default view)	Changes the listing of runs to the default mode.
Hierarchical view	Changes the listing of runs to the hierarchical mode.
Chronological view	Changes the listing of runs to the chronological mode.
Open terminal	Opens a shell terminal in the selected directory. The terminal properties can be customized in Settings → Preferences → Applications → TERMINAL.
Import grid/data	Allows grid file conversion.
Export grid/data	Allows conversion of grid and data to other formats. This option is only valid when a solution icon is selected.
Archive run	Renames and saves existing files in a run by adding a user-defined suffix to prevent overwriting. This option is only active when the whole run is selected.
Delete	Deletes the entire run.