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October 11, 2009, 21:14 
Lagrangian particle tracking

#1 
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Senthil Kabilan
Join Date: Mar 2009
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Hi All,
Does any one have a Lagrangian particle tracking tutorial that I could use? Doesn't look like there is one in the tutorial folder in OpenFOAM. Thanks in advance! Senthil 

October 12, 2009, 02:27 

#2 
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Sebastian Vogl
Join Date: Mar 2009
Location: Munich, Germany
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Hi Senthil,
you can try the dieselFoam solver, which is an Euler/Lagrange solver originally created for spray combustion. However you can suppress the combustion to only simulate a two phase flow with Lagrangian particle tracking. For this solver there is also a tutorial available. All the best, Sebastian 

October 12, 2009, 03:09 

#3 
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Andrew Ryan
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I'm currently looking at icoLagrangianFoam [1] and trying to understand it. However I already have trouble with the terminology. Why is it called Lagrangian Particle Tracking? Which of Lagrange's equations are involved in it?
[1 ]http://openfoamwiki.net/index.php/Contrib_icoLagrangianFoam Edit: Forgot to mention: Also look at this post: http://www.cfdonline.com/Forums/ope...achenbomb.html Last edited by andrewryan; October 12, 2009 at 03:25. 

October 12, 2009, 03:48 

#4 
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Rishi .
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Hi Andrew
This thesis might answer your question about equations. http://powerlab.fsb.hr/ped/kturbo/Op...sNordinPhD.pdf 

October 12, 2009, 05:09 

#5  
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Niklas Nordin
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Location: Stockholm, Sweden
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Quote:
In fluid dynamics and finitedeformation plasticity the Lagrangian specification of the flow field is a way of looking at fluid motion where the observer follows an individual fluid parcel as it moves through space and time.[1][2] Plotting the position of an individual parcel through time gives the pathline of the parcel. This can be visualized as sitting in a boat and drifting down a river. The Eulerian specification of the flow field is a way of looking at fluid motion that focuses on specific locations in the space through which the fluid flows.[1][2] This can be visualized by sitting on the bank of a river and watching the water pass the fixed location. 

October 12, 2009, 07:08 

#6 
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Andrew Ryan
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@niklas Thx I didn't find this article!
I'm also reading your thesis it's very interesting 

October 12, 2009, 13:34 

#7 
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Senthil Kabilan
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Hi All,
Thanks a lot for you help! Regards, Senthil 

July 15, 2014, 12:40 

#8  
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yes
Join Date: Apr 2014
Posts: 32
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Quote:
Sorry for bother you but I'm stock with a conceptual problem in openFoam 2.2.2. The issue is that I'm solving a diesel spray using sprayFoam as a solver, so I already found all the equations implicit in the Eulerian frame but the equations that involve the Lagrangrian frame I can't found the .c files that make reference of it. The question is which are the files that make reference in the Lagrangian frame. Thanks a lot Kind Regards 

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