The OpenFOAM Foundation is pleased to announce the release of version 10 of the OpenFOAM open source CFD toolbox. Version 10 is a snapshot of the OpenFOAM development version which, through sustainable development, is always-releasable. It provides new functionality and major improvements to existing code, with strict demands on usability, robustness and extensibility. OpenFOAM 10 includes the following key developments:

• Multiphase: added models and improved performance / robustness of multiphase solvers.
• Transport: properties consolidated into a single physicalProperties file.
• Thermophysical: improved handling of conductivity and added documentation.
• Heat transfer: improved thermal coupling in conjugate heat transfer.
• Particle tracking: can now be plugged into any solver using the clouds fvModel.
• Reactions: chemistry now solve for mass fractions to account for thermal expansion.
• Parallelisation: new framework for load-balancing, decomposition and redistribution.
• Mesh: general improvements to snappyHexMesh, blockMesh and other tools
• Dynamic Mesh: non-conformal coupling (NCC) for rotating geometry, to replace AMI.
• Dynamic Re-meshing: mesh-to-mesh mapping for mesh motion including engines.
• Function Objects: more efficient output for sampling, and new field calculations.
• Models and Constraints: now work for moving mesh cases and with function objects.
• Boundary Conditions: new general conditions of pressure, velocity and temperature.
• Case Configuration: created userTime to provide a customised measure of time.
• Computation: improvements to distance-to-wall calculations, time handling and I/O.

The OpenFOAM Foundation is pleased to announce the release of version 9 of the OpenFOAM open source CFD toolbox. Version 9 is a snapshot of the OpenFOAM development version which, through sustainable development, is always-releasable. It provides new functionality and major improvements to existing code, with strict demands on usability, robustness and extensibility. OpenFOAM 9 includes the following key developments:

• Multiphase: improved the performance, numerics and robustness of multiphase solvers.
• Transport: significant redesign of thermophysical transport models.
• Thermophysical: automatic compilation of model packages, mixing rules, tabulated input.
• Heat transfer: made calculations consistent between solvers, BCs and post-processing.
• Particle tracking: cloud types selected by user, not hard-coded into solvers.
• Reactions: improved robustness of numerics and chemistry and added general controls.
• Mesh: refactored parts of snappyHexMesh, decomposition and manipulation tools.
• Surface Film: introduced standard thermophysical modelling.
• Function Objects: overhaul of packaged function objects for improved usability.
• Models and Constraints: fvOptions replaced by more flexible fvModels and fvConstraints.
• Case Configuration: enhanced scripts and added new Function2 functions of 2 variables.
• Computation: improved robustness and performance of I/O, compilation, numerics.

The OpenFOAM Foundation is pleased to announce the release of version 8 of the OpenFOAM open source CFD toolbox. Version 8 is a snapshot of the OpenFOAM development version which, through sustainable development, is always-releasable. It provides new functionality and major improvements to existing code, with strict demands on usability, robustness and extensibility. OpenFOAM 8 includes the following key developments:

• Multiphase: selectable interpolation for interface-capturing, PLIC scheme.
• Reacting multiphase: consolidated multiphaseEulerFoam solver and model development.
• Transport: new MomentumTransportModels and ThermophysicalTransportModels libraries.
• Thermophysical: thermodynamics and equation of state models, data input, refactoring.
• Surface Film: huge performance improvements and better surface handling.
• Heat transfer: better numerics and case setup, new thermal comfort modelling.
• Particle tracking: renamed uncoupled solvers, improved tracking efficiency, injection.
• Other models: transient/steady-state solvers, boundary conditions, reactions.
• Mesh: improved snappyHexMesh and blockMesh, face centre calculation, cyclic patches.
• Function Objects: improved visualization/field, residence time and configuration.
• Case Configuration: new configuration/initialisation tools, coded Function1.
• Computation: better data I/O, field caching, support for Arm processors.

The OpenFOAM Foundation is pleased to announce the release of version 7 of the OpenFOAM open source CFD toolbox. Version 7 is a snapshot of the OpenFOAM development version which, through sustainable development, is always-releasable. It provides new functionality and major improvements to existing code, with strict demands on usability, robustness and extensibility. OpenFOAM 7 includes the following key developments:

• Heat transfer: consolidated solvers and improved convergence and robustness.
• Particle tracking: improved robustness and optimized computation.
• Multiphase: wave damping, configurable inlet phase properties, better settling numerics.
• Reacting multiphase models: heat transfer, population balance, breakup, coalescence, etc.
• Reactions/combustion: simplified case setup.
• Turbulence: improved consistency and stability of wall functions, added sources.
• Thermophysical: thermodynamic functions, temperature-strain-dependent viscosity.
• Other models: atmospheric, rigid body dynamics, boundary conditions, sources.
• Mesh: standardized dynamic mesh capability, improved motion solvers.
• Case Configuration: improved data visualization, setup tools, function objects.
• Computation: improvements to containers, fields, parallel running, etc.