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Geometry Modeling
Manage CAD, FE, and 2D parametric sketch geometry.
Discrete Geometry
Work with discrete geometry like FE Geometry and floating elements.
Edit 2D Surface Mesh Elements
Use the Edit tools to manually improve the quality of surface mesh elements and nodes.
Move Elements
Use the Edit: Move tool to move nodes, drag tria elements, modify holes and washers, and automatically optimize nodes and elements.

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.
- Sketching
  Create and edit 2D parametric sketch geometry.
- Geometry
  Create, edit, and cleanup geometry.
- Discrete Geometry
  Work with discrete geometry like FE Geometry and floating elements.
  - Cap Holes and Fill Gaps
    Use the Cap tools to close openings and gaps between parts/surfaces.
  - Connect Geometry
    Use the Connect tools to trim, fuse, and stitch your discrete geometry.
  - Enclosure
    In CFD modeling, input parts can have topology issues, like free surfaces and self-intersections, and part assembly issues, such as parts with very close proximity and intersecting parts. Manually connecting these parts can be time consuming and require expertise in certain tools. The Enclosure tool can generate a watertight manifold model from dirty input with considerably less manual work.
  - Remesh Tessellated Models
    Use the Remesh to create new surface mesh on converted geometry.
  - Smooth Mesh
    Use the Smooth tool to optimize the mesh quality of parts or surfaces.
  - Refine Mesh
    Use the Refine tool to split elements and optimize the mesh quality of parts and surfaces.
  - Decimate Mesh
    Use the Decimate tool to coarsen mesh based on a defined element size.
  - Create Derived Regions
    Use the Derived Region tool to create enclosed and offset regions around a selection – which can be used to define volumetric refinement levels – or create projected regions in a given direction.
  - Convert Elements and Update FE Geometry
    Convert elements that aren't associated with geometry into FE geometry, or update existing FE geometry.
  - Organize Entities
    Use the Organize tool to move or copy entities into their proper destinations.
  - Repair Surface Mesh
    Use the Repair tool to find, review, and fix issues in the mesh.
  - Automatically Fix Mesh Quality
    The Auto Fix tool is useful for cleaning up non-manifold edges, free edges, intersections, high aspect ratio elements, and proximity distance.
  - Edit 2D Surface Mesh Elements
    Use the Edit tools to manually improve the quality of surface mesh elements and nodes.
    - Smooth Elements
      Use the Edit: Smooth tool to optimize the quality of selected elements.
    - Move Elements
      Use the Edit: Move tool to move nodes, drag tria elements, modify holes and washers, and automatically optimize nodes and elements.
    - Split, Swap, Combine Elements
      Use the Edit: Split tool to split quad elements and edges, combine tria elements, and swap element edges. Second order 2D and 3D elements are also supported.
    - Replace Nodes
      Use the Edit: Replace tool to relocate and replace the positions of nodes.
    - Create and Delete Elements
      Use the Edit: Create tool to create new 1D/2D/3D elements and delete elements.
    - Associate Nodes to Geometry
      Use the Edit Elements: Associate tool to find non-associated nodes, review them, and associate to target geometry.
  - Fix Normals
    Use the Normals tool to fix element normals using different methods.
- Model Build and Assembly
  Create, organize and manage parts and subsystems.
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.
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

Move Elements

Use the Edit: Move tool to move nodes, drag tria elements, modify holes and washers, and automatically optimize nodes and elements.

The Edit tools work for tessellated geometry. If the input is b-spline geometry, first convert to discrete geometry using the Convert tool.

From the Discrete ribbon, click the Edit > Move tool.

Figure 1.

Elements are colored according to how well they adhere to the pre-set quality requirements defined in the criteria file.
Optional: On the guide bar, click to to define the options used to edit elements.
Select an element issue type from the guide bar.

Quality

Checks for quality as defined in quality criteria.

Intersections

Checks for intersecting elements.

Face angles

Checks for folded or sharp angle elements.
Optional: Find all elements at or below a certain quality level.
1. Click Find on the guide bar.
2. Increase or decrease the number of layers around patches of failed elements by clicking or on the guide bar.
3. Review the next or previous patch of failed elements by clicking or on the guide bar.

Edit elements in the following ways:

Option	Description
Left Click	Drag nodes along surfaces or feature edges and lines. The quality of the elements that depend on the node being moved dynamically adjust as you drag. Figure 2. Along edge Drag hole/washer nodes for circumferential movement. Drag trias.
Alt + Left Click	Drag nodes across edges and away from boundaries. Figure 3. Across edge Figure 4. Away from boundary Drag hole nodes for radial movement.
Shift + Left Click	Drag nodes normal to surfaces. Use the microdialog to enter a precise value. This helps fix warped elements and remove dents. Figure 5. Drag hole/washer nodes for angular movement
Shift + Alt + Left Click	Drag hole/washer nodes for radial and angular movement
Double Click	Optimize elements and nodes along surfaces or edges.
Alt + Double Click	Optimize elements and nodes across edges.
Shift + Double Click	Optimize nodes normal to surfaces.
Shift + Alt + Double Click	Optimize nodes along and normal to surfaces.

Tip: You can toggle graphical previews from the options menu.