Adds `DomainMesh` improvements, docs, and bugfixes by peterdsharpe · Pull Request #1558 · NVIDIA/physicsnemo

examples/minimal/mesh/README.md

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     | **4. Neighbors & Spatial** | Queries | Adjacency, BVH, sampling, interpolation |
     | **5. Quality & Repair** | Mesh health | Validation, quality metrics, repair |
     | **6. ML Integration** | Production workflows | Performance, batching, torch.compile |
+    | **7. Domain Mesh** | Simulation domains | DomainMesh, boundaries, transforms, validation |
     <!-- markdownlint-enable MD013 -->
     ## Running the Tutorials
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     - End-to-end CAE preprocessing workflow
     - torch.compile compatibility
+    ### Tutorial 7: Simulation Domains with DomainMesh
+    **File**: `tutorial_7_domain_mesh.ipynb`
+    Learn to represent full simulation domains with interior meshes and named boundaries.
+    - Building a DomainMesh from mesh primitives (cube volume + boundary surfaces)
+    - Inspecting domain properties and iterating over meshes
+    - Data augmentation via geometric transforms (quasi-equivariance)
+    - Validation and boundary watertightness checking
+    - Visualization of boundary patches by BC type
+    - Domain-wide operations (subdivide, clean)
     ## Assets
     The `assets/` directory contains pre-saved meshes for use in tutorials:
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