Difference between revisions of "Hairpin by Joel Guerrero"

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[[category:turbulence]]
 
* '''contributor''': Joel Guerrero
 
* '''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_14 Day 14].
 
Go back to [https://wiki.openfoam.com/index.php?title=Day_14 Day 14].
  
=[http://www.wolfdynamics.com/images/pdf/module1.pdf Hairpin vortices]=
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=[http://www.wolfdynamics.com/wiki/tut_hairpin_vortices.pdf Hairpin vortices]=
  
On slides 437-482 of this [http://www.wolfdynamics.com/images/pdf/module1.pdf pdf] you will find an example on vortices behind a hemisphere. This is the simplest possible example of an external flow. As you will see even this case can be rather tricky and you will need all your experience and knoledge to tackle the simulation. You will learn about
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[[File:joegi_f15.png|600px|right|Hairpin vortices]]
  
* understanding the physics
 
* case setup and workflow
 
* meshing
 
* running the simulation
 
** steady-state
 
** transient
 
* data evaluation
 
* mesh refinement
 
  
In order to download the examples click:
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In this [http://www.wolfdynamics.com/wiki/tut_hairpin_vortices.pdf tutorial], we will simulate hairpin vortices behind a hemisphere. This case  (which seems to be a simple one), can be rather tricky and requires the use of some tricks to trigger the hairpin vortices using coarse meshes. You will learn about,
  
[http://www.dicat.unige.it/guerrero/oftraining/30x.tar.gz tutorial files] - size approximately 1.4 GB
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* Understanding the physics
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* Case setup and workflow
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* Meshing
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* Running the simulation
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** Steady-state
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** Transient
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* Sampling and plotting
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* Mesh refinement
  
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 case files at this [http://www.wolfdynamics.com/wiki/hairpin_vortices.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 09:57, 6 January 2020

Go back to Day 14.

Hairpin vortices

Hairpin vortices


In this tutorial, we will simulate hairpin vortices behind a hemisphere. This case (which seems to be a simple one), can be rather tricky and requires the use of some tricks to trigger the hairpin vortices using coarse meshes. You will learn about,

  • Understanding the physics
  • Case setup and workflow
  • Meshing
  • Running the simulation
    • Steady-state
    • Transient
  • Sampling and plotting
  • Mesh refinement


You can download the case files at this link.


Go back to the contributions page.