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oscae:software:openfoam [2022/03/25 17:11]
hazmilazis 		oscae:software:openfoam [2022/10/11 08:59] (current)
hazmilazis [Books]
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-===== Overview ====== +[[oscae:software:openfoam:overview 
- +| Overview of OpenFOAM]]
-  * OpenFOAM stands for Open Source Field Operation and Manipulation. +
-  * OpenFOAM is mainly a C++ library used to solve partial differential equations (PDEs), and ordinary differential equations (ODEs). +
-  * OpenFOAM is under active development. It is originally developed by Henry Weller and Hvorje Jasak in Imperial College London and released as open source code in 2004. +
-  * At the moment, the development of OpenFOAM have been forked into three main development(( +
-More details [[public:software:openfoam:variants| here]])): +
-    * openfoam.com (OpenCFD Ltd, ESI Group) +
-    * openfoam.org (The OpenFOAM Foundation Ltd - Henry Weller) +
-    * foam-extend (Wikki Ltd - Prof Hvorje Jasak) +
-  * OpenFOAM are packaged with ready-to-use solvers, pre-processing utilities, and post-processing utilities. +
-  * OpenFOAM is licensed under the GNU General Public License (GPL). Therefore, it can be freely distributed with the source code, and run on massively parallel computers. +
-  * Industries, academia and research labs makes up the large community of OpenFOAM users and contributors. +
- +
- +
-==== Features ====== +
- +
-Fluid Dynamics/physical modelling features listed in [[https://cfd.direct/openfoam/features/| CFD Direct (openfoam.org)]]: +
-  * Turbulence modelling: (Reynolds-Averaged Simulation (RAS), Large-Eddy Simulation (LES) and Detached-Eddy Simulation (DES, DDES, etc). +
-  * Thermophysical modelling +
-  * Transport/rheology +
-  * Multiphase flows +
-  * Rotating flows with multiple reference frames (MRF) +
-  * Rotating flows with arbitrary mesh interface (AMI) +
-  * Dynamic meshes +
-  * Compressible/thermal flows +
-  * Conjugate heat transfer +
-  * Porous media +
-  * Lagrangian particle tracking +
-  * Reaction kinetics / chemistry +
- +
- +
-==== OpenFOAM in General CFD Workflow ====== +
- +
-{{ :public:software:openfoam_cfd_workflow_20220305_120819.png?800 |}} +
- +
- +
-==== Architecture and Numerics ====== +
- +
-  * Discretisation based on Finite Volume Method (FVM), with collocated polyhedral unstructured meshes. +
-  * Second order accuracy in space and time. Various discretization schemes are available. +
-  * Steady and transient solvers are available. +
-  * Pressure-velocity coupling via segregated methods (SIMPLE and PISO). Coupled solvers are under active development. +
-  * Massive parallelism through domain decomposition. +
-  * All components are implemented in library structure to facilitate the development of customised solvers and applications. +
- +
- +
-==== OpenFOAM vs commercial CFD applications ====== +
- +
-Most capabilities offered by commercial CFD applications are available in OpenFOAM. However, the main differences are: +
-  * There is no native GUI in official release. +
-    * The users have to execute each solvers and pre- and post-processing utilities via command line interface (CLI), particularly Linux bash shell. +
-    * The users have to directly edit case configurations in human-readable plain text format. +
-    * While being tedious and prone to errors, these allow: +
-      * automation of large number of runs using user-defined shell scripts. +
-      * development of 3rd party GUI and workflows tailored for a specific application. +
-  * Official documentation may not be complete, but useful resources are available from various online sources contributed by users/developer community. +
-  * Complete source code is accessible, allowing customisation of a solver for a specific need. Therefore OpenFOAM is suitable to be used for research and development. +
-  * Most importantly, it is free. No restriction on the number of parallel computing processes makes OpenFOAM typically available in large HPC clusters. +
- +
- +
-==== GUI for OpenFOAM ====== +
- +
-  * No official GUI +
-  * But many 3rd party GUI available, +
-    * [[https://engys.com/products/helyx-os | HELYX-OS ]] +
-    * [[https://www.esi-group.com/products/computational-fluid-dynamics/visual-environment-for-openfoam |  Desktop application suite from ESI ]] +
-    * Web application suite at [[https://www.simscale.com/product/cfd/ | simscale.com]] +
-    * See more at [[https://openfoamwiki.net/index.php/GUI]] +
-  * It is possible to develop own GUI tailored for a problem of interest, e.g a simple GUI can be quickly written in Python with [[ https://pysimplegui.readthedocs.io/en/latest/ | PySimpleGUI ]] GUI framework + [[ https://openfoamwiki.net/index.php/Contrib/PyFoam | PyFoam ]] utilities +
- +
- +
-===== Learn ====== +
- +
-  * Serious use of OpenFOAM can be a good reason to be exposed with linux-based OS and its CLI shell scripting for those uninitiated +
-  * It is always recommended to follow official tutorials that will run through simple cases and demonstrate how OpenFOAM utilities can help including useful tips, e.g., [[https://www.openfoam.com/documentation/tutorial-guide]] +
-  * More up-to-date and detailed description can be found in official user-guide, e.g., [[ https://www.openfoam.com/documentation/user-guide ]] +
-  * There are also good learning materials from the community +
-    * [[ https://openfoamwiki.net/index.php/Main_Page | OpenFOAMWiki ]] +
-    * [[ https://www.cfd-online.com/ | CFD Online ]] +
-    * [[ http://www.wolfdynamics.com/tutorials.html | Wolf Dynamics ]]. +
-      * While they offer paid training, most of their training slides and case files are available for free. Their [[ https://figshare.com/articles/media/OpenFOAM_Introductory_Training/16783657?file=31049242 | 1000+ pages introductory training slides]] can be worth to follow, covering most important aspects of OpenFOAM comprehensively. +
-    * Other good resources can be found scattered in the internet. Users have to be careful in judging whether the materials are up-to-date or compatible with their version at hand, and to see if appropriate changes are required +
-  * Ultimately, understanding the actual code is the only way to know the exact implementation and behaviour of the software. However, this is usually not required unless for a niche and advanced applications and for precise solution control.+
  
 ==== Tutorials ====== ==== Tutorials ======
  
-[[public:software:openfoam:abuhasan-starting_openfoam]]+[[oscae:software:openfoam:abuhasan-starting_openfoam]]
  
-[[public:presentation:intro_openfoam]]+[[oscae:presentation:intro_openfoam]]
  
 Bahram Haddadi, Christian Jordan, and Michael Harasek, eds. OpenFOAM® Basic Training | TU Wien. 5th ed. chemical-engineering.at, 2019. https://www.cfd.at/tutorials. Bahram Haddadi, Christian Jordan, and Michael Harasek, eds. OpenFOAM® Basic Training | TU Wien. 5th ed. chemical-engineering.at, 2019. https://www.cfd.at/tutorials.
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 ==== Books ====== ==== Books ======
  
-[[public:books:openfoam.maric.2021]]+[[oscae:books:openfoam.maric.2021]]
  
-[[public:books:cfd.moukalled.2016]]+[[oscae:books:cfd.moukalled.2016]]
  
 +[[https://doc.cfd.direct/notes/cfd-general-principles/]]
  
 ==== Courses ====== ==== Courses ======
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 === Displacement hull ====== === Displacement hull ======
  
-[[public:article:zainudin2021.ship.resistance.passenger]]+[[oscae:article:zainudin2021.ship.resistance.passenger]]
  
-[[public:presentation:zainudin2019.ship.analysis.openfoam]]+[[oscae:presentation:zainudin2019.ship.analysis.openfoam]]
  
-[[public:presentation:Maki2011ShipResistanceSimulations]]+[[oscae:presentation:maki2011shipresistancesimulations]]
  
  
 === Planing hull ====== === Planing hull ======
  
-[[public:applications:planing_hull]]+[[oscae:applications:planing_hull]]
  
  
 ==== Turbulent flow over airfoil ====== ==== Turbulent flow over airfoil ======
  
-[[public:applications:airfoil]]+[[oscae:applications:airfoil]]
  
  
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oscae/software/openfoam.1648199505.txt.gz · Last modified: 2022/03/25 17:11 by hazmilazis

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