OpenFOAM/C3/Turbulent-Flow-in-a-Lid-driven-Cavity/English
Tutorial: Turbulence flow in a lid driven cavity
Script : Chaitanya Talnikar, Shekhar Mishra
Narration : Rahul Joshi
Keywords: Video tutorial ,CFD.
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Slide 1:
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Hello and welcome to the spoken tutorial on modelling turbulent flow in a lid driven cavity using OpenFOAM. |
Slide 2: Learning Objectives | In this tutorial I will show you
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Slide 3:
System Requirement |
To record this tutorial i am using Linux operating system Ubuntu 12.04
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Slide 4
Prerequisites |
To practice this tutorial you should have some basic knowledge of
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Demo:
Set up working Directory
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This problem is identical in geometry and boundary conditions to the 'Lid Driven Cavity' problem discussed in the basic level tutorial.
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Slide 5: Solver | We will be using the Transient solver for incompressible, turbulent flow of Newtonian fluids.
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Slide: Steps in setting up the problem | Now let me open the terminal window
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Demo: Meshing | In the terminal window type run and press enter
Now type ls and press enter In this you will see two folders les and ras
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Demo: Boundary and Initial Conditions | In this you will see three folders 0,constant and system.
cd 0 and press enter
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Transport Properties | Now type cd.. and press enter
RASProperties contain the Reynolds average stress model for the case.
and press enter.
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Demo: Time Step | Now we are done with the setup, run the solver
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Demo: Post processing
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Iterations will stop at the end of the time step.
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Demo: Streamlines | To visualise the stream lines
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Slide 11: | You can also plot the velocity along the x and y axis using plot over line.
Save the data as. csv file from file option in paraview menu bar. You can plot this data in libreoffice spreadsheet or any other plotting software of your choice. The results obtained can be validated by results obtained by Ghia et.al at Re= 10000. Let me switch back to the slides. |
Slide 12:
Summary
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In this tutorial we learnt how to setup
OpenFOAM to solve the lid driven cavity problem with turbulence. Visualised the streamlines in paraview This brings us to the end of the tutorial |
Slide 13:
Assignment |
As an assignment modify the grid size and change it to (100 100 1)
Visualise the flow using streamlines in paraview |
Slide 14:
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The video available at this URL:
http://spoken-tutorial.org/What_is_a_Spoken_Tutorial It summarizes the Spoken Tutorial project. If you do not have good bandwidth, you can download and watch it. |
Slide 15:
About spoken tutorials |
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 us at contacts@spoken-tutorial.org |
Slide 16:
Acknowledgement
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Spoken Tutorials are 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.org More information on the same is available at the following URL link http://spoken-tutorial.org/NMEICT-Intro |
About the contributor | The script is contributed by Shekhar Mishra and Chaitanya talnikar
This is Rahul Joshi from IIT BOMBAY signing off. Thanks for joining. |