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CFD Online top

► Email problems on forums - Forum registrations failed
  29 Jun, 2023
For the last couple of weeks we have had problems with outgoing emails from the forums on CFD Online. I hope that we have now solved the problems and that outgoing emails are now working again.

This means that everyone who registered on the forums from June 16 until today Jun 29 have not received any activation email to activate their forum account. This makes it impossible to activate your forum account.

You can ask for a new activation email to be sent to you using this form:

CFD Online Discussion Forums - Email Activation Codes (cfd-online.com)

I apologize about the problems.

NAFEMS top

► NAFEMS World Congress 2019 Preliminary Agenda Launched
  15 Mar, 2019
NAFEMS World Congress 2019 Preliminary Agenda LaunchedQUEBEC CITY, CANADA, & GLASGOW, UK, MARCH 15TH 2019 – NAFEMS, the International Association for the Engineering Analysis, Modelling and
► 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

OpenFOAM ESI-OpenCFD top

► OpenFOAM v2312 released
  10 Jan, 2024
New version of OpenFOAM-v2312
OpenCFD is pleased to announce the December 2023 release of OpenFOAM® v2312. This release extends OpenFOAM-v2306 features across many areas of the code. The new functionality represents development sponsored by OpenCFD's customers, internally funded developments, and integration of features and changes from the OpenFOAM community.


Full information about the release can be found at https://www.openfoam.com/news/main-news/openfoam-v2312


Among the new development you will find:


Pre-processing
  • snappyHexMesh: writing faces from the automatic leak path closure
  • snappyHexMesh: new multiple inside points
  • snappyHexMesh: parallel meshing load balancing
  • snappyHexMesh: layer-by-layer addition
  • Improved checkMesh and subsetMesh utility
Numerics
  • Community contribution: Improved adjoint shape optimisation
  • Community contribution: New topology-based adjoint optimisation

Solvers and physical models
  • Improved fvOptions: moving points
  • New fvOption: mapped field constraint
  • Community contribution: new Turbulence Technical Committee submodule
  • Improved Lagrangian Brownian motion

Post-processing
  • New Abaqus sampled set and set writer
  • Improved patch seed set
  • New reduced-order modelling field reconstruction with DMD
Parallel
  • Coupled patch field value consistency
  • Non-blocking cyclic A(C)M
  • GAMG : support for cyclicAMI in processor agglomeration
  • Improvements for redistributePar and file systems


In addition to source code packages suitable for compilation on a variety of Linux and other POSIX systems, this release also has a number of pre-compiled binary packages for Linux and MS Windows.
► OpenFOAM v2306 released
    5 Jul, 2023
New version of OpenFOAM-v2306

OpenCFD is pleased to announce the June 2023 release of OpenFOAM® v2306. This release extends OpenFOAM-v2212 features across many areas of the code. The new functionality represents development sponsored by OpenCFD's customers, internally funded developments, and integration of features and changes from the OpenFOAM community.


Full information about the release can be found at https://www.openfoam.com/news/main-news/openfoam-v2306

Upgrading
  • Help for users is provided in the user upgrade guide
  • Help for developers is provided in the developer upgrade guide
  • Note that the minimum C++ standard will increase from C++11 to C++17 in 2023

Usability
  • New documentation system
  • Changes to expressions

Pre-processing
  • Improved checkMesh
  • Improved snappyHexMesh balancing for large meshes

Numerics
  • New cache-gradient mechanism in finiteArea
  • New parallel preconditioners
  • Community contribution: New FPCG linear solver


Solvers and physical models
  • Improved vanDriest LES delta model
  • New Lagrangian particle force: Coulomb
  • Community contribution: New fvOption: fanMomentumSource
  • New fvOption: limitTurbulenceViscosity
  • Improved rigid-body motion constraint: axis


Boundary conditions
  • New boundary condition: specularRadiation
  • New uniformMixed condition
  • New finite area boundary conditions

Post-processing
  • Improved Lagrangian function objects
  • Improved function objects: forces and forceCoeffs


Parallel
  • Improved parProfiling function object
  • Scotch - support for multi-level decomposition
  • Non-blocking linear solver
  • Improved masterCoarsest processor agglomeration
  • General changes in parallel (MPI) handling


In addition to source code packages suitable for compilation on a variety of Linux and other POSIX systems, this release also has a number of pre-compiled binary packages for Linux and MS Windows.

OpenFOAM Foundation top

► OpenFOAM v11 Released
  11 Jul, 2023
OpenFOAM v11 Released - See Full Announcement

The OpenFOAM Foundation is pleased to announce the release of version 11 of the OpenFOAM open source CFD toolbox. Version 11 introduces modular solvers written as classes, in contrast to the traditional application solvers, integral to OpenFOAM since icoFoam in 1993. Modular solvers are simpler to maintain and extend, and are more flexible for multi-region simulations, e.g. conjugate heat transfer (CHT) with any type of flow, e.g. multiphase. Everything is backward-compatible, so: 1) application solvers will still compile in OpenFOAM; 2) launching an old application solver, e.g. simpleFoam, executes a script which runs the incompressibleFluid module on a single region.

OpenFOAM 11 includes the following highlights.
  • Modular Solvers: class-based solvers for greater flexibility, e.g. multi-region simulations.
  • Multiphase: vastly improved consistency and conservation in the multiphaseEuler module.
  • Transport: added anisotropic thermal conductivity.
  • Thermophysical: standardised the specification of property names in input file keywords.
  • Heat transfer: simplified critical boundary conditions for heat transfer between regions.
  • Particle tracking: generalised statistical distributions for size distributions in particles.
  • Liquids Films: full replacement which conserves mass and integrates to other models.
  • Meshes: redesign of dynamic mesh functionality and consolidated NCC.
  • Function Objects: improved field averaging and visualisation function objects.
  • Models and Constraints: numerous new models and constraints.
  • Boundary Conditions: consolidated mapped conditions and introduced MRF conditions.
  • Case Configuration: new foamToC application lists models and options in OpenFOAM.
  • Programming: new finite volume functions and improvements to algorithm sequences.
  • 964 code commits, 133 resolved issues.
  • ISO/IEC 14882:2011 (C++14): tested for GCC v5.5+, Clang v16+ (v10+ should also work).
OpenFOAM 11 is packaged for the following platforms, with ParaView 5.10.1 including Mesa with LLVM/Gallium acceleration for systems without a (supported) graphics card:
The OpenFOAM 11 Source Pack can be compiled on suitable Linux platforms.

Credits

OpenFOAM 11 was produced by:
Licence

OpenFOAM 11 is distributed under the General Public Licence v3 by the OpenFOAM Foundation.

OpenFOAM Other Sources top

► OpenFOAM training resources
  10 Apr, 2024
OpenFOAM training resources by Wolf Dynamics

We just ended another OpenFOAM training cycle; thank you very much to all participants. As usual, the slides and tutorials are free for the whole community; you can download the training material at the following links:



OpenFOAM advanced training. Turbulence modeling in general CFD and OpenFOAM - Theory and applications
https://figshare.com/articles/presen...tions/19310162



OpenFOAM advanced training. Multiphase flows modeling in general CFD and OpenFOAM - Theory and applications
https://figshare.com/articles/presen...tions/19310483




OpenFOAM advanced training. Introduction to the FVM method. Standard practices in general CFD with applications to OpenFOAM
https://figshare.com/articles/presen...nFOAM/19308740




OpenFOAM advanced training. Moving meshes, rigid body motion, adaptive mesh refinement, and overset meshes
https://figshare.com/articles/presen...eshes/19310492




DAKOTA-OpenFOAM advanced training. Design of experiments, space exploration, and numerical optimization using Dakota and code coupling Dakota-OpenFOAM
https://figshare.com/articles/presen...nFOAM/19310495




All the training material is based on OpenFOAM 11 (except for the dynamic meshes training).




👉Follow us on YouTube: https://www.youtube.com/channel/UCNN...S1rGeCVUU1p61g
► Numap-foam 2024
    6 Apr, 2024
Numerical Modelling of Coupled Problems in Applied Physics with OpenFOAM (NUMAP-FOAM)
Summer School 2024 at the University of Cambridge, UK


Link: https://ccm.phy.cam.ac.uk/numap-foam-summer-school-2024

The Centre for Scientific Computing at the Department of Physics, The Cavendish Laboratory announces the 17th edition of the Summer School on Modelling of Coupled Problems in Applied Physics with OpenFOAM (NUMAP-FOAM) for graduate students and young researchers in Cambridge in September 2024. The Program Chairs are Professor Hrvoje Jasak (University of Cambridge, UK) and doc.dr. Tessa Uroic (University of Zagreb, Croatia).

Description

The School aims to provide tuition at expert level for a small and selected group of students and researchers in academia and industry. The idea of the NUMAP-FOAM School is to expand the physical modelling knowledge, numerics and programming skills of attendees using OpenFOAM in their research through direct supervision and one-to-one project work. Lectures on chosen topics of mathematical and numerical modelling pertinent to coupled problems in engineering and applied physics will be delivered in addition. For further references, please contact the organisers or one of more than 180 alumni of previous editions of the School.

To ensure quality of work and individual supervision, the number of places is strictly limited.

Place and Time: The Maxwell Building at the Cavendish Laboratory, West Cambridge

The 17th edition NUMAP-FOAM shall take place between Monday, 2 September 2024 and Friday, 13 September 2024, inclusive (10 working days). The School shall be held at the The Cavendish Laboratory, Department of Physics, (Maxwell Building), University of Cambridge, UK.

Topic Areas

Students are invited to propose their own topics for the School. Preference shall be given to project which require complex programming in OpenFOAM, advanced software design and implementation of complex / coupled physical models in OpenFOAM. Special topics for this year's Summer School include naval hydrodynamics CFD, multi-phase and free surface flows, exa-scale applications of implicit linear algebra, GPU for unstructured CFD, magneto-hydrodynamic applications and electro-chemistry in CFD.

How to Apply: NUMAP-FOAM Summer School 2024

To apply, please write a one-page description of the project you wish to work on, with current problems and goals to be achieved at the School. Application is open to all students on graduate University courses, as well as researchers in companies and government organisations with sufficient knowledge of OpenFOAM.

Please note this is NOT an introductory OpenFOAM course: significant understanding of the project and software is a pre-requisite for application.

Deadline for application is 15 May 2024. Successful candidates will be informed within two weeks of closing.

Accommodation and Costs

Attendees to the School should plan to cover their travel and accommodation expenses, ideally bringing a laptop computer with them. A registration fee for the School is GBP 2000 per attendee. It is recommended to look for accommodation at one of many Cambridge Colleges.

Contact Details

For further details and submission of project proposals, please contact prof. Hrvoje Jasak (hj348 (at) cam.ac.uk) or dr. Tessa Uroic (tessa.uroic (at) fsb.hr).

Legal

OPENFOAM is a registered trade mark of ESI-OpenCFD Limited.
► CFD with OpenFOAM online training, training provided by Technical Courses 2024
  14 Feb, 2024
CFD with OpenFOAM course, 60 hours online, 27th February 2024, price is 400€ - Euros.

Students will require approximately 60 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 60 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
► 7th French/Belgian OpenFOAM user conference, May 22-23rd 2024, Paris-Saclay (FRANCE)
    5 Dec, 2023
Dear OpenFOAMers,

We are pleased to announce the 7th French/Belgian OpenFOAM users conference will be held in Paris-Saclay, France, on May 22nd and 23rd 2024.

You can already submit a presentation title here.
Early bird registration is open until February 28th 2024.

For this 7th edition, you will be able to choose between a workshop session OR a tour of the Synchrotron Soleil facility.
The workshop session will aim to gather users who want to share their knowledge and issues on specific topics (e.g. meshing, post-processing, ...).
Attendees will be asked to sort topics in order of preference beforehand in order to pick the most popular ones.

Important dates:
February 28th 2024: end of early bird registration
May 22nd-23rd 2024: conference

More information: https://www.foam-u.fr/

Save the date!
Yann, on behalf of the organizing committee
► November 2023 - Status Report for the blueCFD-Core project
  29 Nov, 2023
Greetings to all!

We have news on the current status of the blueCFD-Core project: http://bluecfd.github.io/Core/2023/11/29/status-report/

In a nutshell:
  1. We report there on the status of the project and how the funding we have received since 2022, has been invested. Quoting from there:
    Quote:

    As you can see here: commit history page for blueCFD-Core-dev branch, we have implemented a continuous integration bot named blueCFD-bot which automatically synchronizes our development branch with the OpenFOAM Foundation’s development line: OpenFOAM-dev commit history page
  2. The ongoing development has the objective to reduce the effort needed to make the release of each version of blueCFD-Core, which syncs up with each major release from the OpenFOAM Foundation. More details on how this is planned is given on that news post.
Do comment on the benefits this project has brought to you and reasons you see in it to continue moving forward!

For those who are not familiar with the blueCFD-Core project, it unleashes OpenFOAM at Windows, by bringing native builds on Windows of the releases and developments made by OpenFOAM Foundation, without the need to rely on any virtualization software nor Linux-based subsystem (e.g. WSL and Cygwin). It also enables you to build OpenFOAM-based custom code directly on Windows, without the need to cross-compile on Linux.

Best regards,
Bruno Santos


► OpenFOAM Alchemist
  12 Nov, 2023
Get ready to unleash your inner superhero as we dive into the magical world of OpenFOAM, turning novices into alchemists on November 27,28.

More details, including our agenda, registration instructions, etc., are available on:
https://www.eventbrite.ie/e/74339259...=oddtdtcreator
__________________________________________________ ______
Instructors
Amirhossein Taran. Amirhossein is the instructor of "Coding OpenFOAM" on Faradars, the largest online training platform in Iran. As a researcher at Nexsys energy systems, his focus is Fluid-Solid Interaction in wind turbines. Apart from that, he has mastery over multiphase dispersed flows and spray atomization.

Ali Shayegh. During the past six years, Ali has been involved in holding three OpenFOAM workshops, and he is curious to go ahead with another one. As a cfd-online senior member, he helps learners to start from a blank text file and end up with flow calculations over a commercial airplane using OpenFOAM!
Ali’s research focus is the simulation of severe deformation in metal forming processes. Beside doing research at I-Form advanced manufacturing research center, he is currently the tutor of computational continuum mechanics at the University College Dublin, where students learn the basic use of Abaqus, Ansys Fluent, and OpenFOAM.

OpenFOAM Wiki top

► Installation/Linux/OpenFOAM-4.0/Ubuntu
    5 Apr, 2024

Ubuntu 20.04: wrapping this up.

← Older revision Revision as of 20:43, 5 April 2024
Line 510: Line 510:
   
 
== Ubuntu 20.04 ==
 
== Ubuntu 20.04 ==
 
<span style="font-size:180%">'''WARNING: These instructions are currently being written and under testing!'''</span>
 
   
 
'''Discussion thread where you can ask questions about these steps''': {{Installation/NoThreadAskForum}}
 
'''Discussion thread where you can ask questions about these steps''': {{Installation/NoThreadAskForum}}
Line 623: Line 621:
 
</li>
 
</li>
   
<li>'''TODO''' Now, in order to build ParaView 5.0.1, including with the ability to use Python and MPI, several steps are needed:
+
<li>Now, in order to build ParaView 5.0.1, including with the ability to use Python and MPI... there wasn't enough time to investigate this further. Qt4 is not provided with Ubuntu 20.04, so either a more recent version of ParaView would be needed, by using the instructions from [[Installation/Linux/OpenFOAM-7/Ubuntu/20.04]], or Qt4 built from source code.
<ol>
+
<li>Make sure you're running in the {{tt|ThirdParty}} folder and that the correct Qt version is used:
+
<bash>cd $WM_THIRD_PARTY_DIR
+
export QT_SELECT=qt4
+
</bash>
+
</li>
+
<li>For building ParaView with Python and MPI, it depends on whether you have installed the i686 or x86_64 architecture of Ubuntu. To check this, run:
+
<bash>uname -m</bash>
+
Now, accordingly:
+
<ul {{NoIndentStyle}}>
+
<li>For i686:
+
<bash>#this will take a while... somewhere between 30 minutes to 2 hours or more
+
./makeParaView -python -mpi -python-lib /usr/lib/i386-linux-gnu/libpython2.7.so.1.0 > log.makePV 2>&1</bash>
+
 
</li>
 
</li>
   
► Installation/Compatibility Matrix
    5 Apr, 2024

GNU Compiler Collection (GCC): Added compatibility for GCC 7 and OF 4

← Older revision Revision as of 20:40, 5 April 2024
Line 101: Line 101:
 
|-
 
|-
 
! {{version4.0}} {{version4.x}}
 
! {{version4.0}} {{version4.x}}
| none || none || none || all || all || all || all || all || all || all || unknown || unknown
+
| none || none || none || all || all || all || all || all || all || all || all <ref name="stdmacro_update"/>  || unknown
 
|-
 
|-
 
! {{version5.0}} {{version5.x}}
 
! {{version5.0}} {{version5.x}}
Line 119: Line 119:
 
<ref name="C++11Support">On the 5th of August 2016, in commit [https://github.com/OpenFOAM/OpenFOAM-dev/commit/618753c5b4f0e8fb3a422fa372c1ef37eae9b596 618753c5b4], was marked the change regarding explicit support for C++11. More details given in the commit description, but 4.8 is the recommended minimum version. Furthermore, as commented in [http://bugs.openfoam.org/view.php?id=2230 issue #2230], GCC 4.7 cannot be used any more to build OpenFOAM-dev.</ref>
 
<ref name="C++11Support">On the 5th of August 2016, in commit [https://github.com/OpenFOAM/OpenFOAM-dev/commit/618753c5b4f0e8fb3a422fa372c1ef37eae9b596 618753c5b4], was marked the change regarding explicit support for C++11. More details given in the commit description, but 4.8 is the recommended minimum version. Furthermore, as commented in [http://bugs.openfoam.org/view.php?id=2230 issue #2230], GCC 4.7 cannot be used any more to build OpenFOAM-dev.</ref>
 
<ref name="nullObjectGCC6">See post #6 in the thread [http://www.cfd-online.com/Forums/openfoam-installation/180040-openfoam-2-4-0-error-building-paraview-4-1-0-a.html#post627619 <nowiki>[OpenFOAM][2.4.0] Error in the building of ParaView 4.1.0</nowiki>] for some more information on what needs fixing to get GCC 6.y to be usable.</ref>
 
<ref name="nullObjectGCC6">See post #6 in the thread [http://www.cfd-online.com/Forums/openfoam-installation/180040-openfoam-2-4-0-error-building-paraview-4-1-0-a.html#post627619 <nowiki>[OpenFOAM][2.4.0] Error in the building of ParaView 4.1.0</nowiki>] for some more information on what needs fixing to get GCC 6.y to be usable.</ref>
  +
<ref name="stdmacro_update">See instructions for [[Installation/Linux/OpenFOAM-4.0/Ubuntu#Ubuntu_20.04|OpenFOAM 4.0 on Ubuntu 20.40]], step #11.2, which gets a patch from OpenFOAM-dev and applies it.</ref>
 
</references>
 
</references>
   
► Contrib/hybridCentralSolvers
    5 Apr, 2024

← Older revision Revision as of 15:28, 5 April 2024
Line 27: Line 27:
 
8. interTwoPhaseCentralFoam - pressure-based solver for compressible 0-4 Mach numbers flow of two-phase media with account to viscosity and gravity. The solver utilizes VoF method for resolution of phase interface and ACID (  https://doi.org/10.1016/j.jcp.2018.04.028) to calculate properties in the region where both phases are present.
 
8. interTwoPhaseCentralFoam - pressure-based solver for compressible 0-4 Mach numbers flow of two-phase media with account to viscosity and gravity. The solver utilizes VoF method for resolution of phase interface and ACID (  https://doi.org/10.1016/j.jcp.2018.04.028) to calculate properties in the region where both phases are present.
   
  +
9. vofTwoPhaseCentralFoam - an improved version (since OpenFOAM+ 2312) of interTwoPhaseCentralFoam solver that uses volumetric fluxes for transport (increased robustness).
   
 
; Support pages:
 
; Support pages:

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