Select your language

The challenges of interoperability between CAD models and simulation are at the heart of many technical hurdles. The solution CADfix stands out in this domain, ensuring a smooth transition between design and simulation.

Adaptive Tessellation: Applications and Advantages in Simulation

In the realm of CAD and simulation, tessellation or adaptive meshing plays a pivotal role. Let's delve into its applications and benefits.

Applications of adaptive tessellation:

  • Finite Element Analyses (FEA): Simulating physical phenomena like mechanical stresses and thermal flows often necessitates mesh adaptation. This ensures optimal precision, especially in regions with significant local variations.
  • Fluid Simulations (CFD): For modeling flows, critical areas like walls or vortex zones demand an adapted mesh.
  • Multi-scale problems: For simultaneous simulation of phenomena across different scales, adaptive tessellation provides variable resolution.

Benefits of adaptive tessellation in simulation:

  • Enhanced Precision: It enables more accurate results by refining the mesh where it's essential.
  • Resource Optimization: By avoiding a dense mesh across the entire model, computational costs are reduced.
  • Quick Convergence: In iterative methods, this technique fosters accelerated convergence.
  • Flexibility: For intricate or uncertain problems, adaptive meshing adjusts according to needs during the simulation.
  • Time Savings: It allows for starting with a simpler initial mesh and refining it progressively.

Mesh Optimization with CADfix

The software CADfix offers advanced tools for efficient tessellation. Let's explore some of its features.

  • Creation of Faceted Models: CADfix facilitates tessellation with varying levels of precision per area. These models, composed of polygons, serve during file transfers, mesh generation, and simulation.
  • Facet Conversion: From a BREP model, engineers convert the NURBS geometric representation into facets, which then become the basis for simulations.
  • Precise Facet Areas: Thanks to the SAG (Selective Area Growth) parameter, CADfix creates distinct zones for adaptive tessellation.

Watch this video to learn how to define a tessellation zone with optimal precision:

In conclusion, adaptive tessellation is vital to ensure the accuracy and efficiency of digital simulations. And with tools like CADfix, the preparation and conversion of CAD models prior to simulation become smoother and more reliable.