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► Blade Profile
  22 Sep, 2021
Hi everyone
I Amar and I need help , I want C-16 axial compressor and VKI turbine blade

Thanks
► CFD Online Site Up Again
  22 Apr, 2021
As you might have noticed the entire CFD Online site has been down since yesterday evening. It is now finally up and running again. I apologize about the down-time.

Before going to bed yesterday I was just going to run a quick OS-update on the servers. I have done this hundreds of times before, without any problems, but this time the virtual KVM-server running CFD Online refused to start.

Virtual servers are fantastic when they work. You can move your site between hardware nodes and it is easy to update things and create failover servers. But when a virtual KVM server does not start it is very frustrating.... your entire server is just a file, which it is difficult to do anything with.

I was unable to get the site up and running yesterday. But after a few hours of sleep I was finally able to get the server to boot today. It required some manual steps in the boot process. However, once the virtual server had come up everything went back to normal, and now it boots automatically when the hardware node is restarted, as it should.

I apologize about the down-time and the frequent re-boots this morning to debug this. But now I think everything works as it should again, and I am not planning any more reboots today.

If you notice anything that is not working as it should please report it here or via email to webmaster@cfd-online.com. If the site is down please report it as replies to our Twitter or Facebook pages.
► Question-and-answer based CAPATCHA activated
  21 Mar, 2021
We have had problems recently with bots that automatically register thousands of spam users. Clearly our text-based CAPATCHA system, where a new user has to enter a few distorted characters from an image, has been broken. I have instead today activated a questions-and-answers based CAPATCHA system using a bunch of CFD-related questions that most CFD engineers should have no problems with.

If you have problems to answer one of these CAPATCHA questions please let me know. We should have questions that are difficult to answer for spammers, but easy to answer for anyone interested in CFD.

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-v2106 release
    6 Jul, 2021
ESI OpenCFD Ltd. is pleased to announce the release of OpenFOAM-v2106.

The version released in June 2021 brings a lot of exciting new functionality and extension to the existing ones. Let us, among others, highlight a few:

Installation:
  • Precompiled packages for Ubuntu, Suse and RedHat
  • Docker - New and easy script, options to install "bare bones" executable or everything
  • Other installation options as source compilation on Linux and Mac, cross-compiled executables for Windows are also available

Pre-processing:
  • Improved snappyHexMesh gap refinement
  • Improved splitMeshRegions utility
  • Improved checkMesh writing of surface fields

Numerics:
  • Improved performance of new AMI area reconstruction calculation

Solvers & physical models:
  • New overset solvers
  • Improved icoReactingMultiphaseInterFoam solver - includes dynamic mesh
  • New solar load model
  • New turbulence field estimation
  • Improved finite area parallel support

Post-processing:
  • New multiFieldValue function object
  • Improved momentumError function object
  • New Reynolds and Nuselt number cloud function object
  • Improved Dynamic Mode Decomposition (DMD) tools

Please visit release notes to learn more.
► OpenFOAM-v2012 released
    4 Jan, 2021
ESI OpenCFD Ltd. is pleased to announce the release of OpenFOAM-v2012.

The version released in December 2020 brings a lot of exciting new functionality and extension to the existing ones. Let us, among others, highlight a few:

In Meshing:
  • SnappyHexMesh - New thicknessModel allowing more precise y+ control in the first-cell layer
  • SnappyHexMesh - Improved control of gap refinement
  • extrudeMesh - New polyLine extrusion model allows to specify more exiting extrusion path
  • blockMesh - Improved write-vtk command-line option and simplified edge definition

In Numerics:
  • User selectable schemes for high aspect-ratio meshes
  • Lagrangian flow has improved particle tracking on moving meshes
  • MPPIC sub-models have been transferred to kinematic cloud to improve performance and allow interaction with moving meshes
  • Function1 allows setting of a period (more intuitive for slow oscilations)

In Solvers, Physics and Boundary Conditions:
  • New vibro-acoustics solver using finite area model to solve a thin vibrating shell
  • Improved turbulence treatment on the phase interface to reduce spurious velocities for interFoam and interIcoFoam
  • Viscosity models were generalized for easier implementation of new non-newtonian models
  • New buoyancyTurbSource implemented to incorporate effects of buoyancy on turbulence in incompressible and compressible flows
  • New ACMI scaling option can be used to control coupling and blockage behaviour (simple model of a closing valve)
  • Improved outletMappedUniformInlet inlet BC

Many new features and improvements could be found in the post-processing, improved functionality of redistributePar utility.

Compiler configuration and the installation scripts were improved as well.


OpenFOAM is distributed as:
  • Source code
  • Precompiled packages for:
    • Ubuntu
    • RedHat/Fedora/CentOS
    • OpenSUSE
    • Windows 10 Linux Sub-system (Ubuntu)
  • Cross-compiled executables for MS Windows 10
  • Docker container

Please visit release notes to learn more.

OpenFOAM Foundation top

► OpenFOAM v9 Released
  20 Jul, 2021
OpenFOAM v9 Released - See Full Announcement

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: muticomponent diffusion and the redesign of ThermophysicalTransportModels.
  • 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.
  • Approximately 750 code commits, 200+ resolved issues.
  • ISO/IEC 14882:2011 (C++14): tested for GCC v5.4+, Clang v10+ (v4+ should also work).
OpenFOAM 9 is packaged for the following platforms, with ParaView 5.6 including Mesa with LLVM/Gallium acceleration for systems without a (supported) graphics card:
The OpenFOAM 9 Source Pack can be compiled on suitable Linux platforms.

Credits

OpenFOAM 9 was produced by:
Licence

OpenFOAM 9 is distributed under the General Public Licence v3 by the OpenFOAM Foundation.

OpenFOAM Other Sources top

► IHFOAM training courses (Beginners & Advanced) 6-7 October 2021
    7 Sep, 2021
Book your seat now!

It is a pleasure to announce that two new IHFOAM training courses, for beginners and advanced users, will be held in Santander (Spain) on 6 and 7 October 2021, at IHCantabria’s facilities, in compliance with COVID-19 safety regulations.


Detailed course information can be found here:
https://ihfoam.ihcantabria.com/training/course-datails/

Courses will solve case studies of random wave generation, impervious and porous fixed structures, floating structures and simplified mooring systems.

Registration includes the live USB distribution and printed course materials.

Regards,
IHFOAM Team

Disclaimer: This GUI and tutorials are not approved or endorsed by the ESI Group, the producer of the OpenFOAM® software and owner of the OpenFOAM® trademark.
► Solver that combines VOF with DFM and manual
    2 Aug, 2021
Hi everyone
In the beginning of last year, I finalized a project about the stability and segregation of fresh concrete during flow/casting at jobsite. For the CFD part of the project, I had to write a solver that combines the Volume of Fluid Method (VOF) with the Drift Flux Model/Method (DFM). The code is for high viscous non-Newtonian fluid and thus does not include turbulence. Since I was also in the full panic of changing job when finished with the project, I didn’t contemplate on announcing the solver part at the time. But here it is anyway.

The manual is perhaps the best part. It goes in step-by-step manner into DFM (chapter 2) and VOF (chapter 3) separately and mixing of the two (chapter 4), so if the solver is not of interest, you might like the manual. It also addresses the relevant rheology of suspensions in chapter 5 as well as theories for segregation (i.e. slip between phases) in chapter 6. List of source code and compilation info are in the appendix. If you are going to use the solver, please read (and understand) the manual first.

Manual:
https://github.com/JonWallevik/vvpfFoamManual
(you can also find it in researchgate.net)

Videos:
https://www.youtube.com/watch?v=7vzAfyCSv1c
https://www.youtube.com/watch?v=Y0Du5cc-Dvk
https://www.youtube.com/watch?v=DzXHVauA6gk

Source code:
https://github.com/JonWallevik/vvpfFoam

Case example:
https://github.com/JonWallevik/vvpfFoamCaseExample1

Good luck,...
Jon
► 16th OpenFOAM Workshop [online]
    8 Jun, 2021
Hello all!

The 16th OpenFOAM Workshop starts today online. You can still register at https://abbey.eventsair.com/16th-ope...e-registration.

The website (https://www.ucd.ie/openfoam2021) contains links to the agenda and the book of abstracts.

All talks will be recorded and made available on the online platform.

See you there,
Philip
► blueCFD-Core 2020-1 has been released
  14 Apr, 2021
Yesterday we at FSD blueCAPE Lda have released blueCFD-Core 2020-1, which provides OpenFOAM 8 as a native build for Windows, with OpenFOAM binaries acting as normal Windows applications.

The installer for blueCFD-Core 2020-1 is installed separately from blueCFD-Core 2017, therefore both installations can coexist.

Released elements are:
The source code provided for the port of OpenFOAM 8 has been released here, as well as of ThirdParty-8 here.
As mentioned above, the development infrastructure is based on MSys2 and instructions for developing in a clean installation of MSys2 will be provided at openfoamwiki.net, as soon as possible.
For a complete list of bug reports, issues and wishes that have been submitted to the blueCFD-Core project, see the Issue Tracker page. For example, a complete list of issues and tasks that were conducted for developping blueCFD-Core 2020-1, are available there: milestone blueCFD-Core 2020-1.


Disclaimers:
  • FSD blueCAPE is responsible for the development and maintenance of the blueCFD®-Core project.
  • blueCFD® is a registered trade mark of FSD blueCAPE Lda.
  • FSD blueCAPE Lda is an FS Dynamics company.
  • This offering is not approved or endorsed by OpenCFD Limited, producer and distributor of the OpenFOAM software via www.openfoam.com and owner of the OPENFOAM® and OpenCFD® trade marks.
  • blueCAPE Lda is a contributor to the OpenFOAM Foundation, but the majority of the specific modifications needed in the source code for running OpenFOAM natively on Windows, will not be accepted in the official releases of OpenFOAM by the OpenFOAM Foundation, mostly due to the maintenance overhead associated to supporting closed-source operating systems.

Addendum:
  1. We are very aware that we are already in the year 2021, given that in our numbering convention the version blueCFD-Core 2021 is reserved for OpenFOAM 9, which is estimated to be released sometime around June/July 2021.
  2. We will be publishing more information on how to sponsor the development of blueCFD-Core in the near future, in order to allow us to speed up developments and not be so far behind OpenFOAM Foundation's releases.
► Elmer-OpenFOAM library presentation on a webinar on April 1st
  31 Mar, 2021
Dear OpenFOAM users,

There is an webinar series on Elmer FEM in spring 2021. So far there has been general presentation by the Elmer team and now we are moving to contributed talks.

The next webinar will be given already tomorrow at 14 CET by Juris Vencels, the main developer of EOF library that enables Elmer and OpenFOAM to be linked efficiently via MPI. Good parallel scalability has been demonstrated by the library.

I thought this might be of interest for some OpenFOAM users who otherwise would not be bothered by finite elements. For magnetic field the Hcurl conforming basis functions offer some attractive features.

The webinar is free of charge. You can sign up for it here:
https://ssl.eventilla.com/event/ng1zO

Best regards,
Peter

PS. I'm one of the developers of Elmer
► CFD with OpenFOAM online training, training provided by Technical Courses 2021
  25 Feb, 2021
CFD with OpenFOAM course, 60 hours online, 12th March 2021, 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

OpenFOAM Wiki top

► Contrib/waves2Foam
  24 Oct, 2021

Modifications to the Source Code (History)

← Older revision Revision as of 10:23, 24 October 2021
Line 52: Line 52:
   
 
== Modifications to the Source Code (History) ==
 
== Modifications to the Source Code (History) ==
  +
* 2021-10-24 12:38:00: (r2151) Bug fix for foam-extend-4.0
 
* 2021-07-23 10:36:16: (r2150) Tutorial combining porousWaveFoam and GABC
 
* 2021-07-23 10:36:16: (r2150) Tutorial combining porousWaveFoam and GABC
 
* 2021-07-21 20:55:02: (r2149) Compatibility with OpenFoam-v2106 ESI
 
* 2021-07-21 20:55:02: (r2149) Compatibility with OpenFoam-v2106 ESI
► User talk:Tsiapkinis
  22 Oct, 2021

Welcome!

New page

'''Welcome to ''OpenFOAMWiki''!'''
We hope you will contribute much and well.
You will probably want to read the [[https://www.mediawiki.org/wiki/Special:MyLanguage/Help:Contents|help pages]].
Again, welcome and have fun! [[User:Bgschaid|Bgschaid]] ([[User talk:Bgschaid|talk]]) 17:24, 22 October 2021 (CEST)
► User:Tsiapkinis
  22 Oct, 2021

User account Tsiapkinis was created by Bgschaid

► User:Tsiapkinis
  22 Oct, 2021

Creating user page for new user.

New page

M.Sc. in Engineering Science at the Technische Universität Berlin

PhD student at Leibniz-Institut for Crystal Growth
Modeling and Simulation of crystal growth. The main effects and phenomena are:
- Melt Flow
- Heat Transfer and radiation
- Mass Transfer
- free surface modeling
- simulation of electromagnetic forces

Previous experience with OpenFOAM: Airfoil simulations, URANS, LES, turbulence modeling
► Tutorials/Before Getting Started
  20 Oct, 2021

State of Mind

← Older revision Revision as of 08:01, 20 October 2021
Line 31: Line 31:
 
Looks like a weird section name, isn't it? Well, this is because OpenFOAM technology defies the currently traditional mind set of most software users.
 
Looks like a weird section name, isn't it? Well, this is because OpenFOAM technology defies the currently traditional mind set of most software users.
   
You're probably more familiar with friendly and forgiving ''Graphical User Interfaces'' (GUI), with varying degrees of friendliness. And you possibly want to use OpenFOAM technology in Windows or Mac OS X. Well, if you're looking for any or all of those, then have a look at the following wiki pages:
+
You're probably more familiar with friendly and forgiving ''Graphical User Interfaces'' (GUI), with varying degrees of friendliness. And you possibly want to use OpenFOAM technology in Windows or macOS. Well, if you're looking for any or all of those, then have a look at the following wiki pages:
 
* Known Graphical User Interfaces for using OpenFOAM: [[GUI]]
 
* Known Graphical User Interfaces for using OpenFOAM: [[GUI]]
 
* Known ways to install and use OpenFOAM on Windows: [[Windows]]
 
* Known ways to install and use OpenFOAM on Windows: [[Windows]]
Line 150: Line 150:
 
* How much resolution do you need in each one of your pictures. In other words, what's the level of detail you need?
 
* How much resolution do you need in each one of your pictures. In other words, what's the level of detail you need?
 
* Can post-processing techniques help getting you acceptable photos, in case you cannot use the desired hardware?
 
* Can post-processing techniques help getting you acceptable photos, in case you cannot use the desired hardware?
 
   
 
= How to get started with OpenFOAM =
 
= How to get started with OpenFOAM =

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