Session 7

Fluent Meshing: Geometry Configuration and Setup

Geometry Classification

This Fluent Meshing training module concentrates on determining the optimal geometry setup for CFD simulations. Participants master the selection process among three fundamental configurations: solid-exclusive domains for structural or heat transfer analysis within solids, fluid-exclusive domains for pure hydrodynamic studies without solid coupling, and integrated fluid-solid domains for complete multi-physics applications. This fundamental decision shapes the entire meshing procedure and controls the availability of subsequent features within the Fluent Meshing environment.

Fluid Domain Extraction from Solid Boundaries

This capability activates when handling solid geometries requiring fluid space definition. Participants discover techniques to convert solid surfaces into fluid entry points, exit regions, or additional flow boundaries through strategic surface capping. The methodology encompasses boundary selection protocols, boundary condition specification, and fluid region extraction procedures essential for CFD calculations, effectively transforming solid geometric elements into operational fluid computational domains.

Interface Boundary Treatment Configuration

This fundamental setting governs the computational treatment of connections between separate fluid zones. Choosing the affirmative option establishes internal interfaces enabling unobstructed fluid interaction across neighboring regions, whereas the negative selection preserves wall interfaces functioning as physical separations. This selection substantially influences the solver’s approach to multi-domain fluid calculations and determines the final boundary specification framework.

Shared Topology Implementation

Shared topology activation manages mesh connectivity across adjoining geometric components. When activated, it generates conforming meshes featuring continuous nodal connections at interfaces, guaranteeing smooth transitions and enhanced precision between separate body sections. Deactivating this feature produces non-conforming meshes offering greater meshing adaptability for individual elements while potentially creating interface discontinuities.

Multizone Meshing Activation

This sophisticated Fluent Meshing capability provides targeted mesh generation control within designated geometric zones. Students master the integration of various meshing approaches, including hexahedral-predominant mesh creation in selected areas while preserving tetrahedral meshes in other locations. The multizone methodology facilitates mesh quality enhancement in crucial regions while preserving computational performance, incorporating additional scaling parameter control to align with surface mesh properties.