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 # DeadRegion

 Last update: 02.04.2026 

<a id="ansys.meshing.prime.DeadRegion"></a>

### *class* ansys.meshing.prime.DeadRegion(model=None, face\_zonelet\_ids=None, dead\_material\_points=None, hole\_size=None, json\_data=None, \*\*kwargs)

DeadRegion defines a dead region for patch flow regions operation.

**Parameters:**

**model: Model**

Model to create a `DeadRegion` object with default parameters.

**face\_zonelet\_ids: Iterable\[int\], optional**

Face zonelets enclosing dead region.   
**This is a beta parameter**. **The behavior and name may change in the future**.

**dead\_material\_points: List\[str\], optional**

Material points to identify dead region.   
**This is a beta parameter**. **The behavior and name may change in the future**.

**hole\_size: float, optional**

Maximum hole size used for patching.   
**This is a beta parameter**. **The behavior and name may change in the future**.

**json\_data: dict, optional**

JSON dictionary to create a `DeadRegion` object with provided parameters.

### Examples

```pycon
>>> dead_region = prime.DeadRegion(model = model)

```

### Methods

NameDescription[`DeadRegion.print_default`](ansys.meshing.prime.DeadRegion.print_default.md#ansys.meshing.prime.DeadRegion.print_default)()Print the default values of `DeadRegion` object.[`DeadRegion.set_default`](ansys.meshing.prime.DeadRegion.set_default.md#ansys.meshing.prime.DeadRegion.set_default)(\[face\_zonelet\_ids, ...\])Set the default values of the `DeadRegion` object.### Attributes

NameDescription[`DeadRegion.dead_material_points`](ansys.meshing.prime.DeadRegion.dead_material_points.md#ansys.meshing.prime.DeadRegion.dead_material_points)Material points to identify dead region.[`DeadRegion.face_zonelet_ids`](ansys.meshing.prime.DeadRegion.face_zonelet_ids.md#ansys.meshing.prime.DeadRegion.face_zonelet_ids)Face zonelets enclosing dead region.[`DeadRegion.hole_size`](ansys.meshing.prime.DeadRegion.hole_size.md#ansys.meshing.prime.DeadRegion.hole_size)Maximum hole size used for patching.