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# Technical Feature Comparison Matrix
### Development Status
* **Open-Source PUBLIC Version:** Last major release: Nov 30, 2017
* **DCS Commercial Suite:** Active development, Industry grade.
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### User Interface & Usability
* **Open-Source PUBLIC Version:** Command-line execution and standard script files.
* **DCS Commercial Suite:** Modern GUI, Independent Agentic Working, 'Natural Language' input language, post-simulation evaluation functionality, easy to use open output format for Paraview and Ovito.
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### Operating Systems
* **Open-Source PUBLIC Version:** Linux
* **DCS Commercial Suite:** Linux, Windows 11.
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### Support & Customization
* **Open-Source PUBLIC Version:** None
* **DCS Commercial Suite:** Professional support, Maintenance & custom development.
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### Parallelization & Load Balancing
* **Open-Source PUBLIC Version:** Standard MPI parallelization.
* **DCS Commercial Suite:** Optimized MPI parallelization (~3x faster).
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### GPU Acceleration
* **Open-Source PUBLIC Version:** None
* **DCS Commercial Suite:** CUDA GPU acceleration (Linux & Windows) for most relevant features.
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### Particle Shapes
* **Open-Source PUBLIC Version:** Sphere, multisphere, superquadric.
* **DCS Commercial Suite:** Sphere, multisphere, superquadric, Convex & concave triangulated surface, fibers, arbitrary bonded particles.
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### Normal Contact Models
* **Open-Source PUBLIC Version:** Hertz, Hooke
* **DCS Commercial Suite:** Hertz, Hooke, JKR, Luding, Thornton-Ning, Adhesive Elasto-Plastic, Fragmentation.
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### Rolling Friction Models
* **Open-Source PUBLIC Version:** cdt, epsd, eps2, epsd3
* **DCS Commercial Suite:** cdt, epsd, eps2, epsd3, simplistic.
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### Cohesion Models
* **Open-Source PUBLIC Version:** sjkr, sjkr2, capillary models
* **DCS Commercial Suite:** sjkr, sjkr2, capillary models, sjkr time/temperature dependent, liquid bridge models, lubrication model, solidification model, fiber cohesion, powder cohesion, asphalt, bond models, bubble coalescence models.
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### Tangential Contact Models
* **Open-Source PUBLIC Version:** history, no history
* **DCS Commercial Suite:** history, no history, adhesive elasto plastic, burgers asphalt, specialized history models (attrition, attrition angle, powder, temperature dependent, time dependent).
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### Heat Transfer
* **Open-Source PUBLIC Version:** Basic conduction
* **DCS Commercial Suite:** Conduction, Radiation, Melting, Roasting, high-Biot number heat transfer, mesh-to-particle heat transfer, one/four-way coupled heat transfer from fluid fields to particles, coupled fluid/particle/wall heat transfer, shell conduction wall model.
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### Chemical & Mass Transfer
* **Open-Source PUBLIC Version:** None
* **DCS Commercial Suite:** Chemical Reactions & Mass Transfer including dynamic particle size and mass changes, evaporation.
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### Electromagnetism & Charging
* **Open-Source PUBLIC Version:** Basic electric field fixes
* **DCS Commercial Suite:** Electrical conductivity, Electric Current, Resistance, Ohmic heating (with non-spherical particles), Magnetic Dipole, electric field from particle charge, tribo-charging.
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### Fiber & Flexible Media Dynamics
* **Open-Source PUBLIC Version:** None
* **DCS Commercial Suite:** Fiber buckling, cutting, plastic/wet fibers.
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### Advanced Physics & Coarse-Graining
* **Open-Source PUBLIC Version:** None
* **DCS Commercial Suite:** Built-in adaptive coarse-graining, drag (different modes in 1/4-way coupling), buoyancy, simplified fluid model, advanced liquid bridge & liquid transport, Spray coating, Lagrangian droplets, Laser modeling, Particle breakage & attrition, Powder compaction, efficient high pressure contact models, magnetic interaction, electrostatic interaction, complex collision interaction (e.g. wetting).
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### Equipment Wear & Attrition
* **Open-Source PUBLIC Version:** Finnie wear model
* **DCS Commercial Suite:** Finnie, Archard, combined Roessler-Katterfeld wear models, and resolved surface wear.
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### Particle Insertion
* **Open-Source PUBLIC Version:** pack, stream insertion
* **DCS Commercial Suite:** pack, stream, fill region, rate in region, batch insertion, dense packings, spray nozzles, laser diodes.
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### Mesh Control & Dynamics
* **Open-Source PUBLIC Version:** Basic motion types, servo
* **DCS Commercial Suite:** File mesh motion, servo, 6DOF, mesh repair routines, mesh deformation, periodic domain support.
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### Simulation Control & Calibration
* **Open-Source PUBLIC Version:** Basic run and restart
* **DCS Commercial Suite:** Criterion-based run time control, restarting aborted simulation, Built-in automated parameter calibration.
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### Integration & APIs
* **Open-Source PUBLIC Version:** Python API
* **DCS Commercial Suite:** Python & C++ API, dedicated 6DOF solver.
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### Industrial Analytics
* **Open-Source PUBLIC Version:** Manual computes.
* **DCS Commercial Suite:** Mixing Index, Residence time & distance distribution, Voronoi, Steady-state detection, collision statistics, advanced spatial & temporal averaging, post-simulation evaluation functionality.
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### Coupling Interfaces
* **Open-Source PUBLIC Version:** CFD (basic), Support for OpenFOAM 6
* **DCS Commercial Suite:** CFD (1-way and 4-way), Support for OpenFOAM 10, electric field coupling, basic FEM & MBD.
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### CFD Functionality & Fluid Solvers
* **Open-Source PUBLIC Version:** Incompressible, single fluid, spherical, resolved/unresolved, CPU only.
* **DCS Commercial Suite:** Compressible, reacting, incompressible, multi-phase, phase-change, resolved/unresolved/hybrid, spherical/non-spherical, GPU coupled solver.