Important: Values that correspond to drop-down entries in the GUI version of Preferences are case-sensitive must be entered with the same capitalization as the GUI version and be contained within quotation marks.
preferences/
appearance/Enter the menu for preferences covering appearance.
preferences/appearance/
ansys-logo/Enter the menu for controlling Ansys logo visibility.
preferences/appearance/ansys-logo/
visibleEnable or disable the visibility of the Ansys logo in the graphics window.
preferences/appearance/ansys-logo/
colorSpecify whether the Ansys logo is white or black.
preferences/appearance/
application-font-sizeSet the font size for the Fluent graphical user interface (GUI).
preferences/appearance/
axis-triadEnable or disable the visibility of the axis triad in the graphics window.
preferences/appearance/
charts/Enter the menu for controlling the display of 2D charts/plots.
preferences/appearance/charts/
curve-colorsSpecify the initial set of default colors for the rendering of curves. Note that changing this setting requires any plots to be replotted before you see the effect of the new setting.
preferences/appearance/charts/
modern-plots-enabledEnables enhanced plots, which is a beta feature. Enabling this feature exposes new fields (all beta functionality).
preferences/appearance/
color-themeSpecify a color theme for the appearance of Ansys Fluent.
preferences/appearance/
completerEnable/disable the console automatic-completer, which suggests available commands as you type in the console.
preferences/appearance/
graphics-background-color1Controls the primary background color of the graphics window.
preferences/appearance/
graphics-background-color2Controls the secondary background color when the style is set as a gradient.
preferences/appearance/
graphics-background-styleSpecify whether the background color is uniform or if there is a gradient.
preferences/appearance/
graphics-background-themeProvides predefined color and style selections for the graphics window background color.
preferences/appearance/
graphics-foreground-colorSpecify the color of graphics window text.
preferences/appearance/
graphics-viewSpecify whether the default view is orthographic or perspective.
preferences/appearance/
graphics-wall-face-colorSet the default face color for when the mesh is displayed.
preferences/appearance/
group-by-tree-viewSpecify how boundary conditions are grouped in the tree.
preferences/appearance/
number-of-files-recently-usedControls how many recently-used files are listed in the File ribbon tab and the Fluent Launcher.
preferences/appearance/
quick-property-viewEnables/Disables the "quick-edit" properties panels that appear when you select a boundary in the graphics windows.
preferences/appearance/
rulerAdds or removes the ruler from the graphics window. Note that you must be in orthographic view for the ruler to be visible in the graphics window.
preferences/appearance/
selections/Enters the menu for controlling selections in the graphics window.
preferences/appearance/selections/
enable-highlight-edge-transparencyApplies the selection color transparency to front-facing edges.
preferences/appearance/selections/
highlight-edge-colorSpecifies the color used to highlight edges when the Hover-Over Highlight feature is enabled (
mouse-over-highlight-enabled
). It is also the color used when items are selected in the graphics window.preferences/appearance/selections/
highlight-edge-weightSpecifies the thickness of the edge highlights when the Hover-Over Highlight feature is enabled (
mouse-over-highlight-enabled
). It is also the thickness used when items are selected in the graphics window. Valid inputs are 1-10.preferences/appearance/selections/
highlight-face-colorSpecify which color indicates that a face is selected.
preferences/appearance/selections/
highlight-transparencySpecify the transparency of the coloring on a selected surface. 0.1 is fully opaque and 1 is fully transparent.
preferences/appearance/selections/
mouse-hover-probe-enabledEnable/disable the display of result values in the graphics window upon mouse-over, when graphics objects displaying solution results are displayed.
preferences/appearance/selections/
mouse-over-highlight-enabledEnable/disable the highlighted outline of a surface when hovered-over. Note that objects must be redisplayed after changing this setting before the new setting is visible.
preferences/appearance/
show-interface-children-zoneEnable/disable the showing of the non-overlapping zones and interior zones associated with one-to-one mesh interfaces under Setup / Boundary Conditions (under their zone types) in the outline view tree.
preferences/appearance/
show-model-edgesEnable/disable whether mesh edges are shown in a mesh display.
preferences/appearance/
startup-pageEnable/disable the display of the startup page when Ansys Fluent is started without loading a mesh or case file.
preferences/appearance/
surface-specularitySpecify the specularity of all surfaces except those included in contour plots. Sepecularity is the reflectiveness of a surface; higher values (closer to 1) equate to a more reflective surface.
preferences/appearance/
surface-specularity-for-contoursSpecify the specularity of contour surfaces. Sepecularity is the reflectiveness of a surface; higher values (closer to 1) equate to a more reflective surface.
preferences/appearance/
titlesEnable/disable the display of solver information in the graphics window.
preferences/
general/Enter the menu for general preferences.
preferences/general/
advanced-partitionSelect a Laplace smoothing option so that auto-partitioning prioritizes convergence and scalability during solution. Through these options, the Laplace smoothing method is enabled so that adjacent highly-stretched cells are grouped together in order to prevent partition boundaries from passing through areas of high-aspect ratio cells. The options include:
Laplace Auto-Partition
For a case written using release 2023 R2 or later, you can select this option with the Metis auto-partition method, and Laplace smoothing will be directly based on the cell group information written into the case file. This option is selected by default with the Metis method.
Laplace Auto-Repartition
For a case written using a release previous to 2023 R2, you can select this option, so that the cell group information is created during the repartition and migration steps that take place after the auto-partitioning when reading a case file. This option can be used with any auto-partition method.
preferences/general/
automatic-transcriptEnable/disable the automatic creation of a transcript file for each Ansys Fluent session.
preferences/general/
default-ioformatSpecify the default file format for saving mesh, case, and data files.
preferences/general/
idle-timeoutSpecify the default file format for saving case and data files.
preferences/general/
startup-messages/Contains a listing of messages that can be displayed as Fluent starts.
preferences/general/startup-messages/
color-theme-change-messageYou are given the choice of the default Fluent color theme or the new Dark color theme. You can also opt to keep your current color theme.
preferences/general/startup-messages/
key-behavioral-changes-messageThe message identifies changes in Fluent's behavior or capabilities deemed important enough to elevate with a mention outside of the Release Notes.
preferences/general/startup-messages/
qaservice-messageThe message informs you that Ansys Fluent is included in an Ansys QA service agreement. Speak with your service representative for information on the QA service agreement.
preferences/
graphics/Enter the menu for preferences covering appearance.
preferences/graphics/
animation-optionSpecify whether the entire model or just a wireframe is shown during manipulations in the graphics window.
preferences/graphics/
boundary-markers/Enter the boundary markers menu.
preferences/graphics/boundary-markers/
color-optionSpecify whether boundary markers are a fixed color or if they match the color of the surface they are identifying.
preferences/graphics/boundary-markers/
enabledEnable/disable boundary marker display.
preferences/graphics/boundary-markers/
inlet-colorSpecify the color of the inlet boundary markers.
preferences/graphics/boundary-markers/
marker-fractionSpecify marker density factor (0.1-1).
preferences/graphics/boundary-markers/
marker-limitSpecify the maximum number of markers at each boundary.
preferences/graphics/boundary-markers/
outlet-colorSpecify the color of the outlet boundary markers.
preferences/graphics/boundary-markers/
scale-markerSpecify the scale factor for the boundary markers (0.1-10), which controls the overall size of the markers.
preferences/graphics/boundary-markers/
show-inlet-markersEnable/disable the display of boundary markers for inlets.
preferences/graphics/boundary-markers/
show-outlet-markersEnable/disable the display of boundary markers for outlets.
preferences/graphics/
colormap-settings/Enter the colormap settings menu.
preferences/graphics/colormap-settings/
alignmentSpecify the default colormap location.
preferences/graphics/colormap-settings/
aspect-ratio-when-verticalSpecify the length vs. width ratio for a vertical colormap, which controls the thickness of the colormap; smaller values mean a thicker colormap.
preferences/graphics/colormap-settings/
border-styleSpecify how/when the colormap border appears.
preferences/graphics/colormap-settings/
colormapChoose the default colormap.
preferences/graphics/colormap-settings/
labelsSpecify whether there is a label for every colormap value or if some are skipped.
preferences/graphics/colormap-settings/
levelsSpecify the default colormap size.
preferences/graphics/colormap-settings/
log-scaleEnable/disable the use of a logarithmic scale for the colormap.
preferences/graphics/colormap-settings/
major-length-to-screen-ratio-when-verticalChoose the length of the colormap as a fraction of graphics window height, when the colormap is vertical.
preferences/graphics/colormap-settings/
number-format-precisionSpecify the colormap number label precision.
preferences/graphics/colormap-settings/
number-format-typeSpecify how colormap numbers are displayed.
preferences/graphics/colormap-settings/
show-colormapEnable/disable the display of colormaps.
preferences/graphics/colormap-settings/
skip-valueSpecify how many number labels are skipped in the colormap.
preferences/graphics/colormap-settings/
text-behaviorSpecify whether colormap label text automatically scales with the colormap size.
preferences/graphics/colormap-settings/
text-font-automatic-vertical-sizeSpecify the initial font size as a ratio of the colormap overall size, for vertically aligned colormaps.
preferences/graphics/colormap-settings/
text-font-fixed-sizeSet the font size for colormap labels.
preferences/graphics/colormap-settings/
text-font-nameSet the font for colormap labels.
preferences/graphics/colormap-settings/
typeSpecify whether the colormap appearance is smooth or banded.
preferences/graphics/
double-bufferingEnable/disable double-buffering, which reduces screen flicker, but may use more memory on some machines.
preferences/graphics/
embedded-windows/Controls for how embedded window dashboards are created and how they look.
preferences/graphics/embedded-windows/
default-embedded-mesh-windows-viewEnable/disable the automatic embedding of the mesh graphics window (if displaying the mesh by default or via the 'Display Mesh' toolbar button), upon initialization.
preferences/graphics/embedded-windows/
default-embedded-windows-viewEnable/disable the automatic embedding of the residual plot window into a new window Fluent starts computing.
preferences/graphics/embedded-windows/
save-embedded-window-layoutThe layout of the dashboard displayed when the case file is saved is preserved for the next time the case is read.
preferences/graphics/embedded-windows/
show-border-for-embedded-windowA border is drawn around the windows embedded within the parent window.
preferences/graphics/
enable-non-object-based-workflowAllows for the ability to view various graphics displays (mesh, contours, vectors, pathlines, particle tracks) without creating an object in the outline view tree that is saved with the case file.
preferences/graphics/
export-video-settings/Options and settings for how animation videos are saved.
preferences/graphics/export-video-settings/
advanced-video-quality-options/Options for specifying the bitrate quality and whether the H.264 compression technique is used.
preferences/graphics/export-video-settings/advanced-video-quality-options/
bit-rate-qualitySpecifies the bitrate quality of the saved video file.
preferences/graphics/export-video-settings/advanced-video-quality-options/
enable-h264Choose whether or not to use the H.264 compression technique when writing the video file.
preferences/graphics/export-video-settings/
video-formatSpecifies the default format for saving video files.
preferences/graphics/export-video-settings/
video-fpsSpecifies the default frame rate (in frames per second) for saving video files.
preferences/graphics/export-video-settings/
video-qualitySpecifies the default quality for saving video files.
preferences/graphics/export-video-settings/
video-resolution-xSpecifies the x-component of the resolution for saving video files.
preferences/graphics/export-video-settings/
video-resolution-ySpecifies the y-component of the resolution for saving video files.
preferences/graphics/export-video-settings/
video-scaleSpecifies the default scaling for saving video files.
preferences/graphics/export-video-settings/
video-smooth-scalingChoose whether or not to use smoothing on image resolution when scaling for saving video files.
preferences/graphics/export-video-settings/
video-use-frame-resolutionChoose whether or not to use the graphics window resolution when saving video files.
preferences/graphics/
graphics-effects/Enter the graphics effects menu.
preferences/graphics/graphics-effects/
anti-aliasingEnable/disable the smoothing of lines and text.
preferences/graphics/graphics-effects/
grid-colorSpecify the color of the grid lines when the ground plane grid is shown.
preferences/graphics/graphics-effects/
grid-plane-enabledEnable/disable the display of the ground plane grid.
preferences/graphics/graphics-effects/
grid-plane-offsetSet the grid plane offset from the model as a percentage of the model size.
preferences/graphics/graphics-effects/
plane-directionSpecify the direction of the plane for the ground plane grid and reflections.
preferences/graphics/graphics-effects/
reflections-enabledEnable/disable model reflections (mirror-type reflections).
preferences/graphics/graphics-effects/
shadow-map-enabledEnable/disable dynamic shadows, which show shadows of geometric entities on other objects based on lighting and object orientation.
preferences/graphics/graphics-effects/
show-edge-reflectionsEnable/disable the display of model edges in reflections. Note that this can negatively affect performance.
preferences/graphics/graphics-effects/
simple-shadows-enabledEnable/disable the display of static shadows on the ground plane.
preferences/graphics/graphics-effects/
update-after-mouse-releaseEnable/disable the updating of graphics effects as a model is being manipulated in the graphics window.
preferences/graphics/
graphics-window-line-widthSpecify the thickness of lines that appear in the graphics window.
preferences/graphics/
graphics-window-point-symbolSpecify the symbol used for indicating points in the graphics window (like the points in an XY plot).
preferences/graphics/
hardcopy-settings/Enter the menu for saving picture settings.
preferences/graphics/hardcopy-settings/
hardcopy-driverSpecify the default format for saving pictures.
preferences/graphics/hardcopy-settings/
hardcopy-line-widthSpecify the thinkness of lines for saved pictures.
preferences/graphics/hardcopy-settings/
hardcopy-image-accelEnable/disable the use of hardware acceleration when saving images, where possible.
preferences/graphics/
hidden-surface-removal-methodSpecify the method for removing hidden surfaces. These methods vary in speed and quality, depending on your machine.
preferences/graphics/
lighting/Enter the lighting menu.
preferences/graphics/lighting/
headlightTurn the headlight on or off or set it as automatic.
preferences/graphics/lighting/
headlight-intensitySpecify the intensity of the headlight.
preferences/graphics/lighting/
lighting-methodSpecify the default lighting method.
preferences/graphics/
meshing-mode/Enter the menu for meshing-specific graphics settings.
preferences/graphics/meshing-mode/
graphics-window-display-timeoutEnable/disable graphics window display timeout.
preferences/graphics/meshing-mode/
graphics-window-display-timeout-valueSpecify the graphics window display timeout value.
preferences/graphics/
performance/Enter the menu for selecting the predefined graphics effects settings.
preferences/graphics/performance/
fast-display-mode/Enter the menu for controlling fast graphics performance preferences.
preferences/graphics/performance/fast-display-mode/
faces-shownSpecify whether or not faces are shown when interacting with the model.
preferences/graphics/performance/fast-display-mode/
nodes-shownSpecify whether or not nodes are shown when interacting with the model.
preferences/graphics/performance/fast-display-mode/
perimeter-edges-shownSpecify whether or not the perimeter edges are shown when interacting with the model.
preferences/graphics/performance/fast-display-mode/
silhouette-shownSpecify whether or not the silhouette is shown when interacting with the model.
preferences/graphics/performance/fast-display-mode/
statusSpecify whether the fast interactive display settings are on, off, or automatic.
preferences/graphics/performance/fast-display-mode/
transparencySpecify whether or not transparencies remain when interacting with the model.
preferences/graphics/performance/
minimum-frame-rate/Enter the menu for minimum frame-rate settings.
preferences/graphics/performance/minimum-frame-rate/
dynamic-adjustmentEnable/disable dynamic adjustment of quality loss per frame to get to the desired frame rate.
preferences/graphics/performance/minimum-frame-rate/
enabledEnable/disable minimum frame rate.
preferences/graphics/performance/minimum-frame-rate/
maximum-culling-thresholdWith minimum frame rate enabled, Fluent will not cull beyond this number of pixels.
preferences/graphics/performance/minimum-frame-rate/
minimum-culling-thresholdWith minimum frame rate enabled, Fluent will cull at least this number of pixels.
preferences/graphics/performance/minimum-frame-rate/
target-fpsSpecify the target frames-per-second.
preferences/graphics/performance/
optimize-forChoose a preset selection for how graphics are displayed.
preferences/graphics/
point-tool-sizeSpecify the size of the point tool (10-100).
preferences/graphics/
show-hidden-surfacesEnable/disable the display of hidden surfaces.
preferences/graphics/
transparency/Enter the menu for specifying transparency preferences.
preferences/graphics/transparency/
algorithm-for-modern-driversSpecify how Fluent applies transparency in the graphics window: Depth Peeling - best balance of performance and control, Z-Sort - Transparency is applied to all specified objects.
preferences/graphics/transparency/
depth-peeling-layersSpecify how much transparency is applied to the interior of an object. Increasing the number of layers can increase rendering cost.
preferences/
icing/Enter the menu for preferences covering the Fluent Icing workspace.
preferences/icing/
advanced-flagEnable/disable the exposure of advanced settings.
preferences/icing/
beta-flagEnable/disable the exposure of beta features.
preferences/icing/
display-mesh-after-case-loadSpecify which boundaries are displayed by default after the mesh is read.
preferences/icing/
use-launcherEnable/disable the use of the Fluent Launcher for starting the Fluent solver when connecting to or creating a new Simulation. This allows you to launch calculations using a different number of CPUs, a different machine, or a queuing system..
preferences/
meshing-workflow/Enter the menu for preferences covering the Fluent Meshing workflows.
preferences/meshing-workflow/
checkpointing_optionSpecify how Fluent Meshing will save data when you edit a task.
preferences/meshing-workflow/
draw-settings/Enter the menu for specifying drawing settings.
preferences/meshing-workflow/draw-settings/
auto-drawEnable/disable the automatic display of changes in the graphics window based on the current task.
preferences/meshing-workflow/draw-settings/
face-zone-limitSpecify the cutoff number of face zones, beyond which, Fluent Meshing will not automatically display changes.
preferences/meshing-workflow/draw-settings/
facet-limitSpecify the cutoff number facets, beyond which, Fluent Meshing will not automatically display changes.
preferences/meshing-workflow/
save-checkpoint-filesEnable/disable the saving of task editing data when writing a mesh file.
preferences/meshing-workflow/
temp-folderSpecify a temporary location to hold generated mesh files. If nothing is specified, Fluent Meshing will write to
%TEMP%
on Windows and to/tmp
on Linux.preferences/meshing-workflow/
verbosityEnable/disable the printing of additional information and messages in the Console.
preferences/
navigation/Enter the menu for controlling navigation in Ansys Fluent.
preferences/navigation/
mouse-mapping/Enable/disable the printing of additional information and messages in the Console.
preferences/navigation/mouse-mapping/
additional/Enter the menu for controlling mouse mappings that include a modifier button such as Ctrl and Shift.
preferences/navigation/mouse-mapping/additional/
ctrllmbclickSpecify the action/behavoir for Ctrl + left-mouse-button + click.
preferences/navigation/mouse-mapping/additional/
ctrllmbdragSpecify the action/behavior for Ctrl + left-mouse-button + drag.
preferences/navigation/mouse-mapping/additional/
ctrlmmbclickSpecify the action/behavior for Ctrl + middle-mouse-button + click.
preferences/navigation/mouse-mapping/additional/
ctrlmmbdragSpecify the action/behavior for Ctrl + middle-mouse-button + drag.
preferences/navigation/mouse-mapping/additional/
ctrlrmbclickSpecify the action/behavior for Ctrl + right-mouse-button + click.
preferences/navigation/mouse-mapping/additional/
ctrlrmbdragSpecify the action/behavior for Ctrl + right-mouse-button + drag.
preferences/navigation/mouse-mapping/additional/
mouseprobeSpecify whether the probe action provides a long description or a short description.
preferences/navigation/mouse-mapping/additional/
mousewheelSpecify the action/behavior of the mouse-wheel.
preferences/navigation/mouse-mapping/additional/
mousewheelsensitivitySpecify the sensitivity of the mouse-wheel (0 is least sensitive, 1 is most sensitive).
preferences/navigation/mouse-mapping/additional/
reversewheeldirectionReverse the behavior of the mouse-wheel.
preferences/navigation/mouse-mapping/additional/
shiftlmbclickSpecify the action/behavior for Shift + left-mouse-button + click.
preferences/navigation/mouse-mapping/additional/
shiftlmbdragSpecify the action/behavior for Shift + left-mouse-button + drag.
preferences/navigation/mouse-mapping/additional/
shiftmmbclickSpecify the action/behavior for Shift + middle-mouse-button + click.
preferences/navigation/mouse-mapping/additional/
shiftmmbdragSpecify the action/behavior for Shift + middle-mouse-button + drag.
preferences/navigation/mouse-mapping/additional/
shiftrmbclickSpecify the action/behavior for Shift + right-mouse-button + click.
preferences/navigation/mouse-mapping/additional/
shiftrmbdragSpecify the action/behavior for Shift + right-mouse-button + drag.
preferences/
simulation/Enter the menu for simulation preferences.
preferences/simulation/
flow-modelSpecify the default turbulence model (viscous).
preferences/simulation/
local-residual-scalingUse local residual scaling for solution residuals.
preferences/simulation/
pdf-combustion-robust-numericsEnable/disable the application of poor mesh numerics to non-premixed or partially premixed combustion cases, with the goal of increasing the robustness of the calculations that use a PDF table. When enabled, the register-based definition for poor mesh numerics treatment that is automatically created at initialization or when data is read (named
pmn_pdf_stability_marker
) is activated, and thus applies the treatment at regular intervals throughout the calculations to the cells that have an enthalpy value that is less than the minimum enthalpy defined in the PDF table.preferences/simulation/
report-definitions/Enter the menu for report definition preferences.
preferences/simulation/report-definitions/
automatic-plot-fileNew report definitions will automatically create associated report files and plots.
preferences/simulation/report-definitions/
report-plot-history-data-sizeSpecify how many data points are read from the associated report file and plotted in the graphics window. If the case/data files are already open, read the case and data again, after changing this setting, and re-plot to see the updated report plot.