Difference between revisions of "Discretization by Jozsef Nagy"

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(Created page with "* '''author''': Jozsef Nagy * '''affiliation''': Institute of Polymer Injection Molding and Process Automation, Johannes Kepler University Linz, Austria * '''contact''': jozse...")
 
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* '''author''': Jozsef Nagy
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[[category:numerics]]
* '''affiliation''': Institute of Polymer Injection Molding and Process Automation, Johannes Kepler University Linz, Austria
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* '''contributor''': Jozsef Nagy
* '''contact''': jozsef.nagy@jku.at
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* '''affiliation''': eulerian-solutions e.U., Linz, Austria
* '''OpenFOAM version''': 2.3.0
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* '''contact''': <mail address='jnmlujnmlu@gmail.com' description='author'>click here for email address</mail>
* '''Published under''': CC BY-NC-SA license ([https:// creativecommons.org/licenses creative commons licenses])
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* '''OpenFOAM version''': v2006
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* '''Published under''': CC BY-NC-SA license ([https://creativecommons.org/licenses creative commons licenses])
  
 
Go back to [https://wiki.openfoam.com/index.php?title=Day_4 Day 4].
 
Go back to [https://wiki.openfoam.com/index.php?title=Day_4 Day 4].
  
=[https:// www.youtube.com/watch?v=PaDDplpAJJ0 Discretization]=
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=[https://www.youtube.com/watch?v=PaDDplpAJJ0 Discretization]=
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[[File:scalar_jnagy.png|450px|right|1D scalar transport]]
  
 
In this tutorial
 
In this tutorial
  
* [https:// www.youtube.com/watch?v=yN58_cevRxE part 1]
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* [https://www.youtube.com/watch?v=YTcMTuxNhoE part 1]
* [https:// www.youtube.com/watch?v=YTcMTuxNhoE part 2]
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* [https://www.youtube.com/watch?v=yN58_cevRxE part 2]
  
 
you will get a detailed introduction into discretization. The order of magnitude of the utilized discretization is as important as your [https://wiki.openfoam.com/Grid_convergence_by_Jozsef_Nagy grid resolution]. A detailed knowledge on the basics will help you improve your simulations results. This tutorial gives you an understanding on the theory, an introduction on the implementation as well as the application of different schemes within an OpenFOAM case. The topics covered here are:
 
you will get a detailed introduction into discretization. The order of magnitude of the utilized discretization is as important as your [https://wiki.openfoam.com/Grid_convergence_by_Jozsef_Nagy grid resolution]. A detailed knowledge on the basics will help you improve your simulations results. This tutorial gives you an understanding on the theory, an introduction on the implementation as well as the application of different schemes within an OpenFOAM case. The topics covered here are:
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* divergence schemes
 
* divergence schemes
 
* influence of discretization on the simulation results of a passive scalar
 
* influence of discretization on the simulation results of a passive scalar
* postprocessing
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* post processing
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For older versions of OpenFOAM the blockMeshDict file is located in constant/polyMesh, for newer versions the file is located in system.

Revision as of 04:55, 28 July 2020

Go back to Day 4.

Discretization

1D scalar transport

In this tutorial

you will get a detailed introduction into discretization. The order of magnitude of the utilized discretization is as important as your grid resolution. A detailed knowledge on the basics will help you improve your simulations results. This tutorial gives you an understanding on the theory, an introduction on the implementation as well as the application of different schemes within an OpenFOAM case. The topics covered here are:

  • spatial discretization
  • face interpolation
  • changing schemes in OpenFOAM
  • divergence schemes
  • influence of discretization on the simulation results of a passive scalar
  • post processing
For older versions of OpenFOAM the blockMeshDict file is located in constant/polyMesh, for newer versions the file is located in system.