High-Speed CFD Pre-Processing
Cadence Fidelity Hexpress
CFD meshing & pre-processing — cut pre-processing time from days to hours with advanced automation. High-fidelity meshes with 100% viscous-layer coverage for highly accurate results.
Overview
Solve the 80% Bottleneck
GPU acceleration gave CFD solvers up to a 10X speed-up — but the bottleneck moved. Up to 80% of engineering time is still spent on geometry pre-processing and meshing. Hexpress overcomes that bottleneck with advanced automation and best practices.
Production teams report cutting CAD-cleanup tasks that used to take a week down to about an hour — with high-fidelity meshes and 100% viscous-layer coverage, ready for the solver of choice.
Key Benefits
High-Speed CFD Pre-Processing
High-Accuracy Mesh
Realise your CFD potential with high-fidelity mesh generation; dedicated workflows and best practices per application. Fully interactive or automated meshing for V2S and S2V.
Fast & Reliable
Strong automation and fast, robust algorithms ensure reliable, high-quality mesh generation for the most complex geometries.
Mesh Optimisation
Algorithms optimise and smooth meshes to meet solver quality criteria — skewness, non-orthogonality, adjacent volume ratio. Crucial for Fidelity, Fluent, OpenFOAM, etc.
Higher Accuracy
Optimised volume and boundary-layer meshes — fewer numerical errors, high-quality viscous layers, constant boundary-layer growth.
Faster Solver Convergence
High-quality meshes lead to more robust computations and improved solver convergence — faster time to results.
Days to Hours
Pre-processing time on production-grade CAD reported to drop from days to hours — across automotive, aerospace, and turbomachinery workflows.
Meshing Options
Wide Range of Mesh Techniques
Full hex with hanging nodes, mixed-element conformal meshes, and more. Two techniques for high-quality viscous layers — inflation and extrusion — ensuring 100% viscous-layer insertion.
Anisotropic Meshing
Optimised mesh for physics and geometric features (leading / trailing edge) — highest accuracy with dramatic cell-count reduction via anisotropic meshes.
Boundary Layer
Reliable, high-quality boundary-layer meshing — 100% viscous-layer insertion for both S2V and V2S methods.
Hybrid Meshing
Seamlessly combine structured and unstructured meshing in one project. The Fidelity Flow solver understands both — no conversion needed.
Mesh Export to 30+ Solvers
Support for 30+ of the most common CAE solvers (commercial and academic) — one-click export to OpenFOAM.
Distributed Parallel Meshing
Parallel and scalable mesh generation — high-quality meshes with 100M cells in minutes.
Python & GUI Automation
Python API exposes everything in the Fidelity GUI — automate CAD cleanup, meshing, or the entire CFD workflow headless.
Application-Specific Meshing
Dedicated Workflows Per Domain
External Aero
High-quality surface mesh with efficient leading / trailing edge flow capture. Anisotropic surface mesh; optimal boundary-layer with S2V approach.
Internal & Complex
Automated V2S workflows for large, complex geometries. Handle unclean geometry automatically with AutoSeal — boundary layers with 100% surface-wall coverage.
Thermal Management
Automatic multi-domain meshing for conjugate heat transfer (CHT). Conformal connections at solid / fluid interfaces. Optimised thin-wall meshing.
Free Surface / Marine
Dynamic and adaptive grid refinement. Mesh deformation or overset meshing for the 6DOF solver. Anisotropic fully hexahedral mesh for free-surface capturing.
Workflow & Automation
Interactive Workflow + Python Automation
Interactive workflow from geometry import and cleanup to sealing and high-fidelity mesh generation. Instantaneous mesh preview — see the mesh before starting the grid generation process.
Python API provides access to all features available in the Fidelity GUI — automate CAD cleanup, meshing, or the entire CFD workflow with Python scripting for headless operation.
- Geometry import & cleanup
- AutoSeal for hole closure
- Instantaneous mesh preview
- High-fidelity grid generation
- Python scripting for headless ops
Related
Works Well With
Fidelity Autoseal
Automatic CAD hole-sealing — the Honda 1-week → 1-hour tech that pairs with Hexpress.
Learn More
Fidelity Pointwise
Interactive mesh control with Glyph scripting — use when Hexpress automation isn't enough.
Learn More
Fidelity Autogrid
Sister mesher — combines structured, unstructured, and Voronoi in one workflow.
Learn More
Get Started
Cut Meshing Time From Days to Hours
Talk to Craftronics about Fidelity Hexpress — full-hex / hybrid meshing with 100% viscous-layer coverage, distributed parallel scaling.