Effortless Hydrodynamic Simulations
SPH Solver — Smooth Particle Hydrodynamics
A mesh-free Lagrangian solver for efficient handling of large displacements and free-surface flows. Embedded in the ANSA ecosystem, the SPH Solver opens up incompressible hydrodynamic problems that classical Eulerian meshing struggles with — and runs on GPU for near real-time turnaround.
Overview
Skip the Meshing. Solve the Hydrodynamics.
The Smooth Particle Hydrodynamics solver enables effortless hydrodynamic simulations. Based on a mesh-free Lagrangian method, it efficiently addresses problems with large displacements and free-surface flows — sloshing, splashing, breaking waves, fluid entry — that traditional Eulerian / RANS methods either can't handle or require painstaking mesh deformation strategies.
The current implementation focuses on incompressible fluid-flow modelling. SPH is offered as a license feature within the ANSA ecosystem — activation is available upon request.
Benefits
What SPH Brings to the BETA Workflow
Native ANSA Interface
Direct and simple model definition and handling through a simple interface within the ANSA ecosystem — no separate environment to learn.
META Visualisation
Complete flow information results paired with META post-processor for stunning visualisations and video creation — communicate the result, not just the number.
GPU-Tuned, Near Real-Time
Highly tuned GPU implementation of the SPH method delivers near real-time simulation for moderately sized problems.
Why Mesh-Free?
Some Problems Refuse to Mesh
Eulerian / volume-mesh CFD assumes the domain stays well-behaved. Free-surface flows with topology changes — splashes, breaking waves, water hitting structures — break that assumption. Mesh deformation and remeshing strategies can work, but at a cost.
SPH approaches the problem from the other side: track fluid as a collection of particles that carry their own properties, no mesh required. Topology changes are free; large displacements are free; free surfaces are emergent rather than a tracked boundary.
Best-fit problems
- Sloshing in partially filled containers
- Splash & spray simulation
- Breaking waves & wave impact
- Fluid entry (slamming, water landing)
- Large free-surface deformation
- Quick early-stage hydrodynamic checks
How It Fits
A License Feature Inside the ANSA Ecosystem
Set up in ANSA
Model definition and handling happen through ANSA's existing interface. The SPH license feature activates the solver alongside the standard pre-processing toolkit.
Solve on GPU
Highly tuned GPU implementation of SPH delivers near real-time results for moderately sized problems — ideal for fast iteration on hydrodynamic concepts.
Visualise in META
Complete flow information results land in META for post-processing — fringe plots, particle traces, animations, and video export for design reviews.
Related
Works Well With
ANSA Pre-Processor
SPH activates as a license feature within ANSA — the host pre-processor.
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Fidelity Fine Marine
Virtual towing tank — alternative for marine free-surface problems requiring Eulerian / RANS rigour.
Learn More
EPILYSIS
BETA CAE FEA solver — pair with SPH for fluid-structure problems where the structural response matters.
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Get Started
Mesh-Free Hydrodynamics, Inside ANSA
Talk to Craftronics about the SPH Solver license feature — fast, free-surface, GPU-tuned simulation in the BETA workflow.