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Post-Processing
Post-process the simulation results by creating visualizations and measurements.
Create Iso-Surfaces
Use the Iso-Surfaces tool to a create a derived geometry surface with a specific constant scalar value and define display properties. The shape of the iso-surface is dependent on domains and flow field.

Welcome
What's New
View new features for HyperMesh CFD 2024.1.
Get Started
Learn the basics and discover the workspace.
Onboarding Resources
Discover HyperMesh CFD functionality with interactive tutorials and community resources.
Solution Layers
Solution-centric workflows allow you to traverse through modeling environments using a dedicated UI layer.
Manage Files and Data
Create, open, import, and save models.
Convert
Use the Convert tool to convert entire models between data types.
Geometry Modeling
Manage CAD, FE, and 2D parametric sketch geometry.
Meshing
Generate surface/volume mesh by defining mesh controls, or interactively create and edit 2D surface mesh.
Setup
Prepare your model and run the simulation.
Post-Processing
Post-process the simulation results by creating visualizations and measurements.
- Post Browser
  Use the Post Browser to create, edit, and review post-processing visualizations and measurements.
- Display Properties
  Use the options in the display properties microdialog to define post-processing visualizations.
- Transient Animation Toolbar
  Control the animation of transient results while post-processing.
- Create Boundary Surface Groups
  Use the Boundary Groups tool to create a group of surfaces and define display properties. These surface groups can be utilized to group boundaries as required and define specific display properties.
- Create Slice Planes
  Use the Slice Planes tool to create derived geometry by slicing solids on a plane and defining display properties. The result of slicing is a 2D planar face.
- Create Iso-Surfaces
  Use the Iso-Surfaces tool to a create a derived geometry surface with a specific constant scalar value and define display properties. The shape of the iso-surface is dependent on domains and flow field.
- Create Streamlines
  Use the Streamlines tools to create derived geometry streamlines which represent particle paths in a flow field. You have to define participating solids, seed points, and vectors from which streamlines are computed as well as the integration direction. There are various methods to generate seed points.
- Generate Streamlines on Surfaces
  Use the Surface Streamlines tool to create streamlines on surfaces with given seeds.
- Create Clips
  Use the Box and Scalar Clip tools to hide portions of your model, allowing you to better view areas of interest.
- Detect Vortex Cores
  Use the Vortex Core tool to identify regions in the flow where vortices exist.
- Probe Results
  Use the Probe Points tool to define a point or set of points at specific co-ordinates and probe/query results. This is useful for verifying experimental results with simulation result.
- Integrate Results on Entities
  Use the Integration tool to get integrated quantities on surfaces, solids, volumes, slice planes, and iso-surfaces.
- Calculate Data from Expressions
  Use the Calculate tool to create new field quantities using a python expression. The new fields can be derived from existing fields or be completely independent of other results in the dataset.
- Create 2D Plots
  Use the Plots tools to render spatial data as a 2D plot.
- Perform General Signal Processing for Computational Aeroacoustics
  Process a surface output or point probe file created from data as a part of the General Signal Processing (GSP) workflow that is utilized for Computational Aeroacoustics (CAA).
- Perform Ffwocs Williams and Hawkings (FW-H) Analysis for Computational Aeroacoustics
  Prepare the FW-H set of inputs that define the acoustic source (output from an ultraFluidX simulation) and target microphone locations to compute air borne noise propagation.
- Calculate Engineering Quantities
  Use the Engineering Quantities tool to simplify the calculation of values that are commonly used during the post-processing of CFD results.
- Add Notes
  Use the Notes tool to add annotations in the modeling window.
- Save, Open, and Apply Post-Processing States
  Capture the current state of the post-processing session and save it. Recreate the state using a saved state file and apply it to other models.
Automation
Automate simulation processes with templates and utility scripts.
Design Exploration
Once the baseline model is prepared, you can define morph volumes, morph geometry, create design shapes and run DOE studies. These tool work for both AcuSolve and ultraFluidX-based workflows.
Solver Help
More resources for AcuSolve and ultraFluidX solvers.

View All Altair HyperWorks Help

Create Iso-Surfaces

Use the Iso-Surfaces tool to a create a derived geometry surface with a specific constant scalar value and define display properties. The shape of the iso-surface is dependent on domains and flow field.

From the Post ribbon, click the Iso-Surfaces tool.

Figure 1.
Optional: Select input solids to create iso-surfaces.
By default, all solids all selected.
In the microdialog, select an iso variable/scalar and define a value.
Click Calculate.
An iso-surface geometry is created in the Post Browser.
Use the tabs in the display properties microdialog to define plot contour data, vectors, contour lines, mesh lines, and feature lines.
On the guide bar, click to confirm your selection and remain in the tool or click to confirm your selection and exit the tool.

Tip: To edit the iso-surface definition (scalar and iso value) and display style, right-click on an iso-surface in the Post Browser and select Edit. Click Iso function on the guide bar to view the iso variable/scalar definition options.