Tutorial: Introduction to OpenFOAM.
Script : Rahul Joshi and Saurabh S. Sawant
Narration : Rahul Joshi
Keywords: Video tutorial, CFD, About OpenFOAM, Solvers , Parallel Processing
| Visual Cue
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Narration
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| Slide 1
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Hello and welcome to the spoken tutorial on Introduction to OpenFOAM.
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| Slide 2: About OpenFOAM
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- OpenFOAM stands for Open source Field Operation and Manipulation.
- It is an Open Source Computational Fluid Dynamics software.
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| Slide 3: About OpenFOAM
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A CFD tool box written in C++ and working on Linux operating systems.
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| Slide 4: About OpenFOAM
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- OpenFOAM has an Object Oriented Programming interface.
- It is licensed under GNU General Public Licence.
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| Slide 5: OpenFOAM capability
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OpenFOAM is a Finite Volume based CFD software using both structured and unstructured grid.
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| Slide 6: Mesh Generation
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- OpenFOAM has a mesh generation tool called as blockMesh.
- It is used for structured meshing, small and easy grids.
- Mesh input is in the form of a script and no GUI.
- It also has an advanced meshing tool called as snappyHexMesh.
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| Slide 7:Importing Mesh Files
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- We can import mesh files from third party software like Fluent, cfx by using these commands.
- This is useful for large and complex grids.
- We can also use arbitrary polyhedral mesh.
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| Slide 8: Boundary Conditions
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- There are various default boundary conditions which are available.
- Users can modify the existing boundary conditions according to their case.
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| Slide 9: Solvers
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There are a wide range of solvers available for:
- Incompressible flows such as icoFoam
- Compressible flows such as sonicFoam
- Multiphase flows such as interFoam
- Combustion - chemFoam
- Particle-tracking flows - coalChemistryFoam, Molecular Dynamics - mdFoam and MHD flows and many more.
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| Slide 10: Solvers
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Users can create their own solvers or they can modify the existing solvers.
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| Slide 11: Parallel Processing
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- Parallel processing is easy in OpenFOAM and supports OpenMPI.
- We can use 'n' number of processors.
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| Slide 12: Post-Processing
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- OpenFOAM results can be visualized using ParaView.
- OpenFOAM data can also be visulalised in software such as Tecplot, Ensight, and etc.
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| Slide 13: Equivalent to Commercial softwares
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- Commercial software are costly.
- Source code is not available.
- Solver capabilities of OpenFOAM are as good as Fluent, CFX, Star CCM +, etc.
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| Slide 14: Modelling in OpenFOAM
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Solver syntax in OpenFOAM is similar to that used in writing a partial differential equation.
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| Slide 15: OpenFOAM code
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For example, analytically Momentum equation is written as shown.
Shown below is the OpenFOAM code equivalent for this equation.
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| Slide 16-22: OpenFOAM Results
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We will now see some OpenFOAM applications-
- Dam break simulation
- Moving Reference Frame simulation
- Arbitrary mesh interface
- Ship Propeller simulation
- 3D Bluff body simulation
- Particle-tracking simulation
OpenFOAM spoken tutorials are available on the Spoken Tutorial website.
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| Spoken tutorial clips
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Let me show you some clips of spoken tutorials on OpenFOAM.
Using these self-learning tutorials, users can learn
- Installing and running OpenFOAM and ParaView
- Creating a simple geometry
- Simulating Lid-driven cavity
- and many other features of OpenFOAM
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| Slide 23: About the Spoken Tutorial Project
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- Watch the video available at this URL.
- It summarizes the Spoken Tutorial Project.
- If you do not have a good bandwidth you can download and watch it.
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| Slide 24: About the Spoken Tutorial Project
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The Spoken Tutorial Project Team
-Conducts workshops using spoken tutorials
-Gives certificates to those who pass an online test
For more details, please write to contact@spoken-tutorial.org
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| Slide 25: Spoken tutorial Workshops
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- Spoken Tutorials project is a part of Talk to a Teacher project.
- It is supported by the National Mission on Education through ICT, MHRD, Government of India.
- This project is coordinated by http://spoken-tutorial
- More information on this mission is available at this URL link http://spoken-tutorial.org/NMEICT-Intro al.org/NMEICT-Intro
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| Slide 26: Acknowledgement
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References for the video and images have been taken from these websites.
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| Slide 27: Disclaimer
About the Author and Speaker
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- Please make a note that this effort is not approved or endorsed by ESI Group, the producer of OpenFOAM software and the owner of the OpenFOAM trademark.
- The script is written by Rahul Joshi and Saurabh Sawant and this is Rahul Joshi from IIT Bombay signing off.
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