Physics models & solvers
Models and solvers for even the most complex requirements: custom transport equations, multiphase flow, fluid-structure interaction, dynamic meshes.
Computational Fluid Dynamics
Advanced OpenFOAM® development for engineering practice
We develop physics models and solvers, integrate foam-extend and OpenFOAM into your engineering environment and train your team – from a single case to the HPC cluster.
Start a project Our servicesServices
From modelling to production use
We combine in-depth knowledge of the numerics of foam-extend and OpenFOAM with experience from industrial applications.
Support & training
Integration of foam-extend and OpenFOAM into your engineering and design environment, code packages with dedicated support, and customised training seminars.
Collaborative research
Together with universities, research institutions and in European projects we advance the possibilities of numerical simulation.
Deployment & HPC
Installation and operation of foam-extend and OpenFOAM on servers, clusters and HPC systems – including workflow automation.
Validation
Validation of solvers for your specific application, including error estimation and comparison with experiments and reference data.
Software development
Development, maintenance and porting of C++ simulation code – from library extensions to GPU acceleration.
Products
Software for faster simulations
Proprietary extensions for foam-extend and OpenFOAM. Contact us for pricing.
Flitzr CPU PlugIns
Plug-in components that make OpenFOAM cases run faster on CPU clusters: up to 4.6× in the OpenFOAM HPC Challenge. We analyse your case for free.
Research & awards
Research and development projects
In European and national projects we make OpenFOAM faster and more scalable on supercomputers and develop new models for engineering applications.
HPC Innovation Excellence Award
Together with the High-Performance Computing Center Stuttgart (HLRS), Wikki GmbH received the 19th HPC Innovation Excellence Award for the coherent mesh and file format developed by Wikki. It enabled an OpenFOAM simulation on 4,096 nodes (524,288 CPU cores) of the Hawk supercomputer – four times the previous scaling record.
INF4INiTY
Nature-inclusive gravity anchors for floating offshore wind farms. Wikki models seabed liquefaction, scour and the sinking and tilting of the anchors with open-source OpenFOAM solvers.
SCALE-TRACK
A scalable two-way coupled Euler-Lagrange particle tracking algorithm: OpenFOAM solves the flow on CPUs while the particles are tracked asynchronously on GPUs. Demonstrated with up to 256 billion cloud droplets. Innovation study with TROPOS.
AMCG
Asynchronous modified conjugate gradient method: linear solvers without global sums or synchronised communication. On the pressure equation of a 24-million-cell combustor, the asynchronous solver in OpenFOAM was 3.1 times faster at 1.6 times lower cost. Innovation study with INRIA.
exaFOAM
Exploiting exascale systems for open-source CFD in mainstream industry. Wikki developed the coherent mesh and file format for parallel I/O, made the pre- and post-processing of a 489-million-cell combustor case 31 times cheaper and led the work on 30 public HPC benchmarks.
NuLIMAS
Numerical modelling of seabed liquefaction around marine structures. Wikki developed an open-source OpenFOAM model for pore-pressure build-up, liquefaction and re-compaction, validated against wave-flume experiments.
Community
Sharing knowledge with OpenFOAM users
We organise challenges, meetings and training for OpenFOAM users and developers.
OpenFOAM Stammtisch
An informal yearly meeting of the OpenFOAM and CFD community in Germany, organised by Wikki together with GWDG at its computing centre in Göttingen. Community talks, a Bring Your Problem session where the group works on a participant’s modelling or performance problem, Find Your Employer speed dating between companies and job seekers, and a tour of the HPC clusters. Free of charge.
Training at OpenFOAM events
Courses on OpenFOAM at community events: running simulations efficiently on HPC systems, extending solvers, and new developments from our projects such as the coherent I/O format, GPU particle tracking and seabed liquefaction. Given at OpenFOAM Workshops and hackathons, with hands-on sessions.
OpenFOAM HPC Challenge
A yearly open benchmark of OpenFOAM on current hardware: all participants run the same industrial case, with the standard code or their own optimisations, and compare time and energy to solution. Wikki co-organises the challenge. The first edition, OHC-1, collected 237 data points from 12 organisations.
About us
CFD development from Germany
Founded in 2008, Wikki GmbH develops, supports and teaches open-source CFD with foam-extend and OpenFOAM. The company is based in Germany and is managed by Henrik Rusche, a long-standing developer of foam-extend. We work for industrial customers and in European and national research projects, with a focus on numerical methods, physics models and high-performance computing.
Numerical expertisePhysics models and solvers written into the code itself, not bolted on from
outside.
At home in HPCFrom a workstation to hundreds of thousands of cores.
Leading-edge know-howMethods from our European research projects go straight into our
customers' simulations, beyond the state of the art.
Contact
Let's talk about your project
Whether solver development, training or a research collaboration – we will get back to you promptly.
Wikki GmbH
Ziegelbergsweg 68
38855 Wernigerode
Germany
Email: info@wikki-gmbh.de
Phone: +49 3943 4082128