RHOXYZ provides a mesh‑free, Lagrangian CFD solver that simulates incompressible flows around complex geometries without volumetric meshing.
Funding
Funding not disclosed
Founders
Product
Problem
Traditional CFD workflows require generating volumetric meshes from CAD geometry, a time‑consuming step that limits the ability to simulate flows with moving or deforming bodies and complex free‑surface phenomena. This meshing bottleneck hampers rapid design iteration, fluid‑structure interaction studies, and optimization across industries such as marine, automotive, aerospace, and food processing.
Solution
RHOXYZ offers a mesh‑free, Lagrangian CFD solver that operates directly on triangulated CAD surfaces, eliminating the need for volumetric meshing. The solver advances the fluid and solid bodies in a fully Lagrangian framework, allowing unrestricted motion and deformation while maintaining mass conservation. Computations are fully parallelized on CPUs and GPUs, enabling large time steps and high‑performance simulations of incompressible, variable‑density, thermal, and viscoelastic flows. The platform supports sharp interface handling for impacts, fragmentation, and surface‑tension‑driven free‑surface flows, providing accurate physics for fluid‑structure interaction and optimization tasks.
Target Audience
Primary users are engineers and researchers in marine, automotive, aerospace, civil, defense, and food industries who need high‑fidelity fluid‑structure interaction, optimization, or product‑life‑extension simulations without the overhead of mesh generation.
Features
- Mesh‑free simulation using only surface triangulations, removing the meshing preprocessing step
- Fully Lagrangian formulation that permits free movement and deformation of both fluid and solid bodies
- Mass‑conservative solver validated on incompressible flows with strong gradients
- GPU‑accelerated parallel computing with support for multi‑core CPUs, enabling large time steps and high throughput
- Sharp‑interface capabilities for violent flows, impacts, fragmentation, and surface‑tension effects
- Extensible physics modules for thermal, variable‑density, and viscoelastic flow modeling
- CFD‑DEM coupling on GPU for resolved particle‑fluid interactions