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Ansys Meshing – CutCell

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Source: Ansys

CutCell meshing is a general purpose hex-dominant meshing technique. The CutCell meshing algorithm is suitable for a large range of applications, and due to the large fraction of hex cells in the mesh, often produces better results than regular tetrahedral meshes. This method can be used instead of tetrahedral or hexcore meshing, without requiring a very high quality surface mesh as a starting point. Also, this method uses a direct surface and volume approach without the need of cleanup or decomposition, thereby reducing the turnaround time required for meshing.

The CutCell meshing process involves the following approach:

1. Objects, material points (optional), and size functions are defined.
2. The initial size of the Cartesian grid is computed based on the minimum and maximum size set for the size functions.
3. A uniform Cartesian grid is created within the bounding box for the geometry.

The base size for the Cartesian grid is computed from the minimum and maximum size specified in the Size Functions dialog box as follows:

Base Size = 2n × Min Size

such that

Base Size ≤ Max Size

where n is the number of refinement levels.

In this tutorial, you will learn to use the CutCell tool using Ansys Meshing. This mesh is enabled in Ansys Fluent and allows to refine it in a structured way.

## Ansys Fluent Tutorial | Heatsink

In this tutorial, you will learn how to simulate a Heatsink using Ansys Fluent. In this first video, you will see how to create the geometry and the mesh using DesignModeler, Ansys Meshing and Ansys Fluent.

## Ansys Meshing | Inflation

You can set the Use Automatic Inflation control so that inflation boundaries are selected automatically depending on whether or not they are members of Named Selections groups.

## Ansys Meshing | Inflation

You can set the Use Automatic Inflation control so that inflation boundaries are selected automatically depending on whether or not they are members of Named Selections groups.

## Ansys Meshing – Keyframe Animation

You can make animations based on keyframes. Keyframes define the start and endpoints of each section of animation.

## Ansys Meshing – Match Control

In this tutorial, you will learn how to use the Match Control tool in Ansys Meshing. Match Control allows duplicating the mesh in a body. We have two option Match Control Cyclic and Arbitrary.

## Ansys Meshing – Body of Influence

The Body of Influence option is available in the Type field if you selected a body and Use Adaptive Sizing is set to No. Using this option, you can set one body as a source of another body

## Ansys Meshing – Sphere of Influence

The Sphere of Influence option is available in the Type field after you select an entity such as a body, face, edge, or vertex.

## Ansys Meshing – Sizing

By default, Use Adaptive Sizing is set to Yes, unless Physics Preference is set to CFD or Nonlinear Mechanical (in which case the default is Capture Curvature set to Yes),

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