Computational geometry
Robust analytical and geometrical operations on arbitrary polygonal and polyhedral cells.
Advanced Interface Reconstruction & High-Performance Computing
Interfaces, geometry and high-performance simulation.
AIR-HPC is a research group focused on developing accurate and robust numerical methods and open-source software. Its work spans interface initialization, reconstruction and geometric advection on arbitrary meshes, with an initial focus on scalable integration into multiphase flow solvers and scope for other interface-driven problems.
AIR Toolkits architecture
VOFTools · isoap · hiVOFCell-level numerical geometry
gVOFMesh-level geometric VOF
AIRgVOFCFD solver integration
Research
From cell geometry to scalable CFD
AIR-HPC connects mathematical algorithms, reusable numerical kernels and multiphase-flow solvers without sacrificing the independence of each layer.
Geometric VOF
Accurate initialization, interface reconstruction and unsplit advection on general meshes.
High-performance computing
Shared- and distributed-memory strategies for demanding 3D simulations.
Solver interoperability
Non-intrusive coupling of independent Fortran kernels with external multiphase CFD solvers.
AIR Toolkits
A modular scientific software ecosystem
Five complementary components span cell-level geometry, mesh-level volume-of-fluid methods and integration with external solvers.
v5.1Cell level
VOFTools
Analytical and geometrical tools for volume-of-fluid methods in arbitrary polygonal and polyhedral cells.
View softwarev1.1Cell level
isoap
Isosurface extraction tools for arbitrary polyhedral cells.
View softwarev1.0Cell level
hiVOF
High-order volume-of-fluid initialization for implicitly defined fluid bodies in arbitrary polyhedral cells.
View softwarev1.1Mesh level
gVOF
Unsplit geometric volume-of-fluid methods for initialization, PLIC reconstruction and advection on arbitrary grids.
View softwareIn developmentMiddleware
AIRgVOF
Non-intrusive middleware and host-solver adapters coupling gVOF with external CFD solvers.
View project
Preliminary AIRgVOF result
Three-dimensional rising bubble on a polyhedral mesh
A demanding two-phase case demonstrates the feasibility of coupling OpenFOAM’s MPI domain decomposition with gVOF’s native OpenMP parallelism on an arbitrary polyhedral mesh.
2,011,489polyhedral cells
MPI × OpenMP4 ranks × 8 threads
+0.0053%bubble-volume drift
Re = 1.519late-time mean; experiment 1.5
This result is presented as evidence of integration feasibility. It is not a validation, convergence or scalability study.
Explore the caseContact
Research and software enquiries
AIR-HPC is a research initiative led by Joaquín López at the Universidad Politécnica de Cartagena.
Acknowledgements
Funding and acknowledgements
Project PID2023-147948OB-C32 funded by MICIU/AEI/10.13039/501100011033 and by ERDF, EU.
