Difference between revisions of "Theory by Joel Guerrero"

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* '''author''': Joel Guerrero
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[[category:numerics]]
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* '''contributor''': Joel Guerrero
 
* '''affiliation''': Universita degli Studi di Genova, Wolf Dynamics
 
* '''affiliation''': Universita degli Studi di Genova, Wolf Dynamics
* '''contact''': joel.guerrero@unige.it
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* '''contact''': <mail address='joel.guerrero@unige.it' description='author'>click here for email address</mail>
* '''OpenFOAM version''': 3.0.x
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* '''OpenFOAM version''': 7
 
* '''published under''': CC BY-SA license ([https://creativecommons.org/licenses creative commons licenses])
 
* '''published under''': CC BY-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].
  
=[http://www.wolfdynamics.com/images/pdf/module6.pdf Summary of theory]=
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=[http://www.wolfdynamics.com/wiki/fvm_crash_intro.pdf Crash introduction to the FVM and numerical playground]=
  
In this [http://www.wolfdynamics.com/images/pdf/module6.pdf pdf] you will find a very detailed introduction into the theory of CFD in OpenFOAM. The covered topics are:
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In these [http://www.wolfdynamics.com/wiki/fvm_crash_intro.pdf slides], you will find a general introduction to the FVM and some details on the numerics implemented in OpenFOAM. The following topics are covered:
  
* finite volume method (slide 3)
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* Brief introduction to the finite volume method  
* CFL number (slide 80)
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* CFL number  
* linear solvers (slide 180)
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* Linear solvers  
* solution methods (slide 222)
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* Solution methods  
* unsteady and steady simulation (slide 248)
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* Unsteady and steady simulations
* residuals (slide 279)
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* Monitoring and interpreting the residuals  
* boundary and initial conditions (slide 303)
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* Boundary and initial conditions  
  
For the simulations download the initial case setups here:
 
  
[http://www.dicat.unige.it/guerrero/oftraining/30x.tar.gz tutorial files] - size approximately 1.4 GB
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In these [http://www.wolfdynamics.com/wiki/fvm_np.pdf slides], you will a series of test cases that you can use to play around with the numerics. Do not be fooled by the cases, they seem to be easy problems but they are known to be numerical schemes killers. So let us see how well do we master the theory.
  
You only have to download it once, you can find all the cases in the tarball, which you need for all the tutorials of Joel Guerrero.
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* You can download the numerical playground case files in this [http://www.wolfdynamics.com/wiki/101FVM.tar.gz link].
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Go back to the [https://wiki.openfoam.com/Collection_by_authors#Joel_Guerrero contributions page].

Latest revision as of 20:42, 18 August 2019

Go back to Day 4.

Crash introduction to the FVM and numerical playground

In these slides, you will find a general introduction to the FVM and some details on the numerics implemented in OpenFOAM. The following topics are covered:

  • Brief introduction to the finite volume method
  • CFL number
  • Linear solvers
  • Solution methods
  • Unsteady and steady simulations
  • Monitoring and interpreting the residuals
  • Boundary and initial conditions


In these slides, you will a series of test cases that you can use to play around with the numerics. Do not be fooled by the cases, they seem to be easy problems but they are known to be numerical schemes killers. So let us see how well do we master the theory.

  • You can download the numerical playground case files in this link.


Go back to the contributions page.