U-bend Thermal-Fluid Dataset

The U-bend dataset is a large parametric simulation set of a heat-exchanger core component (the bent pipe), with 10,000 independent runs covering curvature ratios (r/D = 1.5 ~ 3.0), Reynolds numbers (Re = 1,000 ~ 50,000) and inlet temperature. Each run includes full velocity and temperature fields, a valuable resource for heat-exchanger design and surrogate research.

What's included

• Geometry: curvature ratio, pipe diameter, inlet/outlet length
• Flow: Reynolds number, inlet velocity, turbulence intensity
• Thermal: inlet temperature, wall heat flux, Prandtl number
• Output fields: velocity (u, v, w), pressure, temperature

Specs

• Solver: OpenFOAM (standard k-e)
• Cells: ~50,000 ~ 200,000 per run
• Total size: ~20 GB
• Format: VTK / CSV with metadata JSON
• License: MIT

Use cases: Heat-exchanger optimization via accelerated parameter sweeps; secondary-flow / Dean vortex studies; PINN boundary-condition generalization; thermo-hydraulics teaching case.