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New Trends in CFD 2
Rambøll, Hannemanns Allé 53
DK-2300 Copenhagen S, Danmark
Map of venue
Wednesday 24th of September 2014

The world of CFD is changing fast and in many directions. This seminar will focus on the latest changes in the different areas focusing on user friendliness, speedup and the underlying physics.

Program
9.00 Registration
9.30 Welcome
Jens Chr. Bennetsen, Rambøll  
9.45 Integrated CFD
Niels Riis Christensen, Autodesk, Denmark
NTI CADcenter will be presenting Simulation solutions from Autodesk. Autodesk Simulation gives you a great number of tools for Digital Prototyping and we offer solutions through the entire processchain from idea to production.
The development of integrated solutions gives the user new opportunities to achieve simulations not seen possible before. Take the example of a part made in plast, it can be stress analyzed in the Autodesk Mechanical FEM solution, based on both the production history from the plastic injection process, simulated in Moldflow. And the influence of the load temperature based on the actual “infield environment” simulated in Simulation CFD.
Presentation 1 in PDF
Presentation 2 in PDF
10.15 Meshless Particle-based kinetic solver
Ruddy Brionnaud, XFlow - Next Limit Technologies, Spain
Traditional CFD software are based on the well-known Finite Volume and Finite Elements methods, which require a time-consuming meshing process that is prone to errors which significantly affects the mesh quality and thus the outcome of a simulation. Furthermore, the complex geometries such as elements in small gaps or sharp edges add an extra complication to generate the mesh. The lattice-Boltzmann Method (LBM) is steadily becoming a relevant method for solving the fluid flow equations and demonstrated its reliability over the past decades. XFlow CFD is a novel and unique LBM-based CFD software and therefore avoids the traditional meshing process. The discretization stage is thus strongly accelerated, reducing engineering costs and making complex geometry computations affordable in a straight-forward way. Furthermore, its unique LBM approach allows to involve moving geometries (FSI) and dynamic refinements.
Presentation in PDF
10.45 Coffe Break
11.15 Fully Coupled Automated Meshing with Adaptive Mesh Refinement Technology
Suresh Nambully, Converge CFD / Ignite3D Engineering, Austria
CONVERGE CFD is a 3D CFD code loaded with physical models for a wide variety of applications and uses a proprietary cut-cell technology to generate body fitted Cartesian mesh during runtime, eliminating all user meshing time, which is especially valuable for moving boundary applications such as internal combustion engines or turbines and fluid structure interaction (FSI) problems.
The user supplies a surface file representing the geometry and CONVERGE CFD generates the volume mesh during runtime. There are many and flexible ways to adjust the simulation grid resolution in space and in time as well as an adaptive mesh refinement (AMR) based on flow physics. AMR automatically adjusts grid density to accurately resolve the gradients. This innovative mesh generation strategy, using a stationary and orthogonal mesh in the interior of the domain has many accuracy benefits while saving valuable computational time and resources, allowing the Engineer to use the work time on technical and engineering tasks, instead of meshing.
The presentation discusses the key features and benefits of automatic mesh generation and strategies for user grid control in CONVERGE including AMR. The presentation also demonstrates some of the versatile applications possibilities which become feasible due to this freedom provided by the CONVERGE CFD approach.
Presentation in PDF
11.45 SpaceClaim and CAD Editing for CFD
Ricco Busk, Cadsys Scandinavia, Denmark
SpaceClaim provides CAE analysts the fastest tools possible to get geometry ready for simulation. Whether de-featuring CAD geometry, creating new concepts from scratch, or optimizing existing models, SpaceClaim removes the geometry bottleneck and lets engineers focus on the physics. By putting simulation users in control of geometry, CAE can drive product development by optimizing models before CAD and validating results post-CAD
SpaceClaim enables simulation experts to:
•        Open native CAD models from all major systems, and also handle surface and mesh geometry
•        Quickly repair poor geometry quality created by old legacy CAD systems and surface modelers
•        Optimize CAD models to create efficient geometry for input to the meshing process
•        Remove manufacturing detail (holes, rounds, chamfers, etc.) without needing to understand the original CAD models
•        Make geometry modifications in minutes that could take hours in the original CAD authoring package
•        Easily extract geometry volumes and enclosures required for fluids/thermal analysis
 - Live Demo - Examples on youtube
12.15 Advances in Accelerator-based CFD Simulation
Wim Slagter, ANSYS Germany
This presentation demonstrates why hardware accelerators (like NVIDIA GPU and Intel Xeon Phi) could be of interest for CFD simulation. It presents the current status of accelerator-based solver support in ANSYS Fluent 15.0. By means of examples, technical guidelines and performance data will be discussed. Finally, licensing and future directions associated with accelerator-based CFD simulation will be briefly addressed.
Presentation in PDF
12.45 Lunch Break
13.45 DANSIS Graduate Award
Presentation of the 2014 Dansis Graduate Award Winner - Stig Staghøj Knudsen.
14.00 CFD and High Performance Computing in the Cloud
Marc Levrier, Bull Extreme Factory, France
This presentation shows how Bull eXtreme Factory services, software products and expert team helps moving CFD and other HPC workloads to the cloud, being private, public or both. Various successfull experiments and real business cases are described.
Presentation in PDF
14.30 Barracuda Virtual Reactor
Adlan Omer, AIXProcess, Germany
Barracuda Virtual Reactor® or Barracuda VR® is built exclusively for one single application: Gas-Particle fluidized reactors. The Barracuda VR software package includes all models and features to simulate commercial operating reactors across broad industries. The presentation gives a brief overview of the modelling approach and a variety of industrial scale simulation examples.
Presentation in PDF
15.00 Break
15.30 STAR-CCM+ Overset Mesh Technology
Dr. Sven Enger, VP Business Development, CD-adapco, Germany
Overset mesh – also known as "chimera" mesh – is used to describe the technology where individual meshes are generated around each moving object; these objects can then be moved over a background mesh. The technology is seen as a paradigm shift in engineering simulation as it reduces the analysis workflow drastically and opens up a range of new applications. The presentation gives a brief overview of the overset mesh methodology and demonstrates how it has been applied to industrial applications.
Presentation in PDF
16.00 Implementation of HPC at TetraPak
Ulf Lindblad, TetraPak, Sweden
The simulation community at Tetra Pak has now for a decade pursued the challenging route of High Performance Computing, HPC. Why milk processing and packaging is such a demanding technical application will be discussed and examples will illustrate the potential of  HPC and CFD to speed up development and enable solutions that otherwise would be out of reach. The theme is realistic simulations using large case HPC, multiphysics, DOE and a virtual development strategy we label “event driven design”.
Presentation in PDF  
16:45 Closing remarks
Knud Erik Meyer, Dansis Chairman
17:00 End

The venue takes place at the Ramboll Headquarter, near "Ørestad" station. Arriving by car, you can find information about parking possibilities.

Members of DANSIS can participate in the seminar free of charge. Non-members are also invited to participate at a fee of 400 DKK


- Closed for registration -


Cancellation of an existing booking is done by email.


DANSIS - The Danish Society for Industrial Fluid Dynamics     Email: dansis@dansis.dk