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► Spam protection problems
  31 Aug, 2018
For some time we have been running a fairly aggressive and quite good spam filter from Atomicorp. This filter blocks a lot of unwanted traffic. It is based on an add-in called ModSecurity that inspects all communication with the web-server and drops traffic that the Atomicorp rules thinks is spam.

Sometimes this can cause unexpected problems. If you all of a sudden just aren't able to reach www.cfd-online.com when trying to post a message or submit a CFD-wiki page it can be this filter that has found something it thinks is spam in your data. It then drops your data and blocks your IP number from our servers for a certain time.

If you have problems with this filter and are suddenly unable to reach www.cfd-online.com please contact us on webmaster@cfd-online.com. We can disable certain rules if they are too restrictive, but we need to know the problems to be able to fix them.

NAFEMS top

► Keynote Speakers announced for NAFEMS World Congress 2019
    7 Feb, 2019
Keynote Speakers announced for NAFEMS World Congress 2019The International Association for the Engineering Analysis Community Launches Extensive Roster of Keynotes for it’s Biennial World Congre
► Memorandum of Understanding between NAFEMS, prostep ivip, PDES, Inc. and AFNeT on behalf of LOTAR and CAE-IF signed 16 October 2018
    6 Feb, 2019
Memorandum of Understanding between NAFEMS, prostepivip, PDES, Inc. and AFNeT on behalf of LOTAR and CAE-IF signed 16 October 2018NAFEMS, prostep ivip, PDES, Inc. and AFNeT on behalf of LOTAR and CAE-
► 5 Reasons to Submit your Abstract for the NAFEMS World Congress 2019
    9 Nov, 2018
5 reasons to submit your abstract for the NAFEMS World Congress 2019 #NAFEMS19 1. Influence the Direction of SimulationNAFEMS is the voice of the CAE community – as simulation moves towards the
► Latest NAFEMS Publications
    1 Nov, 2018
Latest NAFEMS PublicationsThe following publications have been published recently and sent to our members.How To Perform Linear Dynamic Analysis This book aims to provide guidance on the usage of comm
► NAFEMS World Congress 2019 - Call for Papers Now Open
  30 Jul, 2018
NAFEMS are delighted to announce that the call for papers for the 2019 NAFEMS World Congress, in Quebec City, Canada, 17-20 June 2019, is now open.Engineering analysis, modelling and simulation are dy
► Call-for-Papers - We want you!
  19 Jun, 2018
Call for Papers - We want you!Get involved with the engineering analysis, modelling and simulation community and present at one of the many NAFEMS events taking place around the world. As part of our

OpenFOAM ESI-OpenCFD top

► OpenFOAM-v1812 released
    4 Jan, 2019
OpenCFD is pleased to announce the release of OpenFOAM-v1812.

This release extends OpenFOAM-v1806 features across many areas of the code. The new functionality represents development sponsored by OpenCFDs customers, internally funded developments, and the integration of features and changes from the OpenFOAM community.


Among other developments it features:
- snappyHexMesh directional stretching
- New leakage detection on geometry
- New Homogeneous Isotropic Turbulence (HIT) initialisation
- Improvements to overset
- uniformFixedValue types allow changes in time and space now
- New function object to compute AMI patch performance


... and many other developments or improvements from OpenFOAM team or contributors.


The detailed list can be found at: http://openfoam.com/releases/openfoam-v1812/


OpenFOAM-v1812 can be downloaded as:

- source code
- precompiled Docker images for Linux, Windows and Mac operating systems
- available also in the spack HPC package manager via the 'openfoam-com' package.

Details can be found on http://openfoam.com/download/installation.php
► OPenFOAM v1806 released
    2 Jul, 2018
OpenCFD is pleased to announce release of OpenFOAM-v1806. This release extends OpenFOAM-v1712 features across many areas of the code. The new functionality represents development sponsored by OpenCFDs customers, internally funded developments, and integration of features and changes from the OpenFOAM community.


Among other developments it features:
- Directional refinement of the mesh in snappyHexMesh
- New dry-run solver option for set-up check
- Improved field mapping in parallel
- New blended scheme for stabilisation
- New laser melting solver
- New swirl fan velocity boundary condition
- New In-situ processing with ParaView Catalyst
- New solvers documentation
- New fvOption documentation

Among the community contributions:
- Consolidation of moving mesh solvers
- Moving mesh functionality added to interIsoFoam
- New wave-mangrove interaction

... and many other features

The detailed list can be found at: http://openfoam.com/releases/openfoam-v1806/

OpenFOAM-v1806 can be downloaded as source code, precompiled Docker images for Linux, Windows and Mac operating systems from http://openfoam.com/download/installation.php or is available also in the spack HPC package manager via the 'openfoam-com' package.

OpenFOAM Foundation top

► OpenFOAM v6 Released
  10 Jul, 2018
OpenFOAM v6 Released

From the Release Announcement...

The OpenFOAM Foundation is pleased to announce the release of version 6 of the OpenFOAM open source CFD toolbox. Version 6 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 6 includes the following key developments.
  • Conjugate heat transfer (CHT): improved usability, with simplified set up and running.
  • Rotating/sliding geometries: more robust AMI, and support for periodic cases.
  • Particle tracking: optimised computation and improved robustness.
  • Reacting multiphase models: phase change, reactions, drag, breakup, coalescence, etc.
  • Reactions/combustion: faster, full algebraic Jacobian, significant code redesign
  • Other models: water waves and films, turbulence, thermophysics, atmospheric flows
  • General: new boundary conditions, function objects, improved code compilation, etc
  • Further tools for more productive CFD with OpenFOAM.
  • Approximately 750 code commits, 350+ resolved issues
  • ISO/IEC 14882:2011 (C++11): tested for GCC v4.8+, Clang v3.7+, Intel ICC v17.0.4+.
OpenFOAM 6 is packaged for the following platforms.
The OpenFOAM 6 Source Pack can be compiled on suitable Linux platforms.

Credits

OpenFOAM 6 was produced by:
  • Core Team (CFD Direct): Henry Weller (co-founder & lead developer); Chris Greenshields (co-founder), Will Bainbridge
  • Developers/Maintainers: Bruno Santos, Francesco Contino, Mattijs Janssens (co-founder), Juho Peltola, Fabian Schlegel, Ronald Oertel, Timo Niemi
  • Patch Contributors: Tobias Holzmann, Kevin Nordin-Bates, Lorenzo Trevisan, Federico Piscaglia, Björn Pfeiffelmann, Jakub Benda, Nicolas Bourgeois, SeongMo Yeon, Stefan Hildenbrand
Licence

OpenFOAM 6 is distributed under the General Public Licence v3 by the OpenFOAM Foundation.
► OpenFOAM Open Day 2018
  28 Mar, 2018
The OpenFOAM Foundation is pleased to announce the OpenFOAM Open Day 2018.
  • Date: Wednesday 19th September 2018, 10:00 – 16:00 UK time.
  • Free event for the supporters of OpenFOAM who manage and maintain the software, contribute new developments and provide funding.
  • Free live stream worldwide to OpenFOAM users and CFD managers who register using a recognised company email address.
The OpenFOAM Open Day addresses the sustainable development of OpenFOAM, bringing together talks and discussion from contributors, supporters and maintainers of OpenFOAM. It is a free event streamed live worldwide to OpenFOAM users and CFD managers.

Register now for the live stream.

OpenFOAM Other Sources top

► Classroom OpenFOAM introductory training. July 8th - 12th, 2019. Genova, Italy.
  10 Feb, 2019
Classroom OpenFOAM introductory training. July 8th - 12th, 2019. Genova, Italy. (https://bit.ly/2hvNdaf)


This course is offered in cooperation with the University of Genova and Wolfdynamics (http://www.wolfdynamics.com). The course last five days, which we think is the minimum time needed to introduce all the concepts of OpenFOAM® as a general CFD and multiphysics solver, advanced subjects, and the CAD/Meshing/Visualization tools.

This training is aimed at those with little or no experience in the use of OpenFOAM®, or those who want to improve their skills using OpenFOAM®. During the lectures, the attendees will be introduced to all aspects of OpenFOAM® as a general-purpose CFD solver, from structure and organization of the library, to setting cases, to assessing the convergence, to basic programming. Additionally, a few sessions will be dedicated to solid modeling, mesh generation, and visualization using open-source tools.

During this training, we also cover the following advanced physics topics; turbulence modeling, multiphase flows, heat transfer, moving bodies, source terms, and the finite volume method.

Hands-on sessions will be organized, where the participants will have the opportunity to solve predefined cases (or their own cases) with the assistance and guidance of the course trainers.


Prerequisites: no prior knowledge of OpenFOAM®, C++ or Linux is required. However, a basic knowledge of Linux is beneficial. A basic knowledge of CFD is also desirable.

Training material:
every participant will get a copy of the printed lecture notes and a USB key with the supporting material.

Teaching method: lectures and hands-on sessions to validate the acquired knowledge. A training certificate is provided to all attendees who complete the course.

Additional notes: attendees are not required to bring their own laptop since workstations with pre-installed software will be available. The inscription fee includes lunch and refreshments.


For more information, visit the following link https://bit.ly/2hvNdaf


Hurry up and get your seat right now to take advantage of the early registration discount.
► 14th OpenFOAM Workshop 2019 (Duisburg, Germany)
    7 Feb, 2019
The 14th OpenFOAM® Workshop will be held in Duisburg (Germany), from the 23.07.2019 until the 26.07.2019 and will be organized by the Development Center for Shiptechnology and Transport Systems (DST), sourceflux by DST and the University of Duisburg-Essen. Since its inception, in 2006, the OpenFOAM® Workshop is attended by a large group of users and developers, both from industry and academia, interested in OpenFOAM® technology, which currently covers a wide range of applications.
The OpenFOAM® Workshop is open to everyone regardless of origin and/or area of activity, novices are just as welcome as experts in the field.
Included in the Workshop are several training courses of different levels of OpenFOAM®. These courses are for beginners as well as experienced users and developers, which will be taught by experts and programmers of OpenFOAM® technology.


Please visit the workshop's website www.openfoamworkshop.org for more information and important dates.


On behalf of the local organizing committee, we hope to see you all in person in Duisburg.


Kind regards,
Jens Höpken
► OpenFOAM advanced training. February 5-8, 2019. Uni. Genova, Italy - Wolfdynamics
  10 Jan, 2019
OpenFOAM advanced training. February 5-8, 2019 (https://bit.ly/2vIfHny)


We want to draw your attention to the upcoming OpenFOAM advanced training session that will take place in February 5-8, 2019. During this classroom training session we will address the following topics:
  • February 5th, 2019 - Moving meshes, rigid body motion, adaptive mesh refinement, overset meshes, mesh topological modifications and source terms.
  • February 6th, 2019 - Turbulence modeling with OpenFOAM - Theory and applications.
  • February 7th, 2019 - Multi-phase flows modeling with OpenFOAM - Theory and applications
  • February 8th, 2019 - Open day (free for participants of the advanced training). This day (from 9:30 to 16:00), is dedicated to helping participants to setup their cases. Note: Lunch is not included.

So hurry up and book your place, you are still on time to take advantage of ours reduced fees.


You can find more information in the following link: https://bit.ly/2vIfHny



Prerequisites: intermediate knowledge of CFD, OpenFOAM®, and Linux is required. Some basic knowledge of C++ and shell scripting is beneficial. For those following the optimization training, no prior knowledge of Dakota is required.

Location: DICCA, University of Genova, (via Montallegro 1, 16145 Genova, Italy).

Course times: from 9:00 am to 5:00 pm, plus 30 minutes of Q&A.

Language: English

Number of seats: 15 places available.

Training material: every participant will get a copy of the printed lecture notes (high quality color), and an USB key with the supporting material.

Teaching method: lectures and hands-on sessions to validate the acquired knowledge. A training certificate is provided to all attendees who complete the course.

Additional information:
These courses are offered in cooperation with the University of Genova.
The fee includes the printed material (high quality color), an USB key with the supporting material, and lunch and refreshments.
Attendees are not required to bring their own laptop since workstations with pre-installed software will be available.
► CFD with OpenFOAM course, Technical Courses - 2019
    6 Jan, 2019
CFD with OpenFOAM course, 50 hours online, Next edition 31st January 2019 (update contents), price is 400€.

Students will require approximately 50 hours to acquire a intermediate OpenFOAM level and obtain a certificate diploma. Nevertheless, additional material is provided for students who want to spend more than 50 hours and acquire a higher level.

The course is structured as follows:
- 11 theoretical chapters (each chapter includes a text and a videolesson)
- 8 basic exercises (each exercise includes a text and a videotutorial)
- 7 intermediate exercises (each exercise includes a text and a videotutorial).

The whole material (videolessons, exercises and texts) is available from the first day and there is no schedule. Videolessons are recorded. This enables each student to progress according to his learning pace.

More information & registration under: http://www.technicalcourses.net/port...php?curso_id=8
► OpenFOAM Training 2019
  19 Nov, 2018
CFD Direct are running their OpenFOAM Training courses, Essential CFD, Applied CFD, Programming CFD and Cloud CFD fully updated with the latest features of OpenFOAM v6. Courses are available:
We design our OpenFOAM Training so that users can learn effective CFD, giving them the confidence to carry out CFD analysis, repeatedly, to a defined standard in a timely manner. We provide 4 courses — Essential CFD, Applied CFD, Programming CFD and Cloud CFD — that teach reliable procedures to configure, run and maintain CFD simulations. While creating and improving these courses, we have contributed tools to OpenFOAM for more productive CFD, so that users waste less time on routine tasks.

CFD Direct manages, maintains and develops OpenFOAM on behalf of the OpenFOAM Foundation. Through the public release of the development version (OpenFOAM-dev), and the adoption of a sustainable development strategy, we have made OpenFOAM more robust and easier to use. We have included numerous tools for productive CFD so that users waste less time on routine tasks. Our training teaches these tools and is fully updated for latest features in v6:
  • Heat Transfer – simplified case setup with the foamSetupCHT utility and the singleFluidCHT template case.
  • Visualisation – updated sampling for graphs, extended seeding options for streamlines.
  • Case ManagementfoamInfo script to find information, and time and jobInfo function objects.
  • Case InitialisationfoamGet script to copy configuration files quickly, and foamDictionary to edit file entries.
  • Meshing – updated surfaceFeatures utility, general dynamic mesh capability.
  • General – improved AMI, multiphase, particles and other modelling.
► New library for wall-modelled LES with OpenFOAM
  17 Nov, 2018
Dear all,


For some years now, me and my colleagues have been working on implementing a library of wall models for LES, expanding the native capabilities of OpenFOAM. In the latest release, v0.4.0, we have added support for the latest versions of OpenFOAM, both Foundation and OpenCFD releases. It is thus a good time-point to (re-)introduce the code to the community.


The library can be found here

https://bitbucket.org/lesituu/libwallmodelledles

The README file provides quite a bit of information about what the library does, I copy the Key features section below
  • Provides a number of wall models, based on both non-linear algebraic and ordinary differential equations, see the class-headers in the wallModels folder.
  • Makes it possible to specify the distance to the wall model's sampling point, h, on a per-face basis.
  • Allows the user to control all the other parameters of wall modelling, e.g. model constants, iterative solver settings etc.
  • Serves a as a convenient framework for implementing new models without a lot of code duplication.
An in-depth discussion along with simulation results for turbulent channel flow and flow over a BFS can be found here.
https://arxiv.org/abs/1807.11786
More works using the library can be found in the end of the README.


For obvious reasons, it has not be possible to thoroughly validate the code using all the supported OF versions. Therefore any issues with compilations and running are very welcome to be reported. Please also feel free to contact me regarding any possible collaborations, WMLES is becoming a hot topic, and joining forces is usually of benefit.

OpenFOAM Wiki top


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