Now open for early access

Cryogenic slosh simulation, solved.

Alpha Flow CFD is a specialised solver for two-phase cryogenic slosh. Define your tank geometry and excitation, get validated slosh loads, pressure probes, and energy budgets in hours — not weeks. No CFD expertise required.

No spam. Just updates when we launch.

The problem

General-purpose CFD was never built for violent cryogenic slosh

Tools that break on two-phase cryogenic physics

Off-the-shelf solvers struggle with liquid-vapour phase change at a sloshing interface. You spend days tuning mesh, time-steps, and multiphase parameters only to get results you cannot fully trust.

Simulation times that kill your schedule

A single violent slosh simulation can take days to set up and run. When your design cycle demands dozens of load cases, that timeline is unsustainable.

Dependency on CFD specialists

Most CFD packages assume a trained specialist at the wheel. When your team needs slosh answers and the CFD expert is booked solid or gone, the analysis stalls.

Why Alpha Flow CFD

Why engineers choose Alpha Flow CFD

Accuracy without the CFD PhD

Validated multi-physics algorithms eliminate the mesh-tuning guesswork. Get slosh loads you can trust for design decisions the first time, not after weeks of calibration.

Hours, not days, per simulation

Define your tank geometry and excitation, then let the solver run. No need to hand-craft phase-change models or wrestle with interface-tracking parameters.

Built for two-phase cryogenic reality

Every run delivers slosh impact loads, pressure probe data at critical locations, and full mechanical energy budgets — the outputs you need for tank qualification and structural analysis.

How it works

From tank definition to qualified loads in three steps

Define your tank and excitation

Import or specify your tank geometry and set the excitation profile — acceleration, orientation, fill level, and cryogenic fluid properties. No mesh-tuning marathon.

Run the multi-physics solver

The solver runs validated two-phase algorithms with phase-change modelling at the liquid-vapour interface, capturing violent slosh dynamics that general-purpose tools miss.

Extract loads, pressures, and energy budgets

Get slosh impact loads, pressure probe traces at critical locations, and full mechanical energy budgets — ready to feed into your structural analysis and tank qualification process.

FAQ

Questions, answered.

How is Alpha Flow CFD validated for cryogenic slosh, and can I see the benchmark data?

We validate our solver against published cryogenic slosh experiments and benchmark cases from the aerospace and energy communities. Our multi-physics approach couples interface tracking with thermodynamic phase-change models specifically tuned for cryogenic fluids, so both the hydrodynamics and the thermal behaviour are captured.

Do I need to be a CFD specialist to use it?

No. Alpha Flow CFD is designed for non-CFD experts. You define the tank geometry, excitation profile, and fluid properties, and the solver handles the physics. If you can specify your operating conditions, you can run a simulation.

How fast are simulations compared to general-purpose CFD tools?

Typical two-phase cryogenic slosh cases resolve in a matter of hours on a standard workstation. Because the solver is purpose-built for this regime, it avoids the overhead and instability that general-purpose CFD codes introduce when they attempt phase change at a sloshing interface.

What outputs does the solver produce?

Slosh impact loads on tank walls, pressure probe data at user-specified locations, and complete mechanical energy budgets (kinetic, potential, and dissipation). These map directly to the data structural and propulsion teams need for tank qualification.

Can it handle LH2 and LOX, or is it limited to one cryogen?

The current solver targets liquid-vapour phase change at the slosh interface, which is the dominant physics for LH2, LOX, and LNG. Gaseous species mixing and multi-component condensation are on the roadmap — tell us if those matter to you in the waitlist survey.

Does it integrate with my existing CAD and FEA tools?

It is primarily a simulation solver, not a CAD package. You import or define tank geometry and excitation inputs, and the solver produces the loads and probe data you need. Exported results can feed into your existing structural analysis workflow.