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Request for Lagrangian Particle Tracking Validation or Verification Paper |
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May 3, 2015, 13:25 |
Request for Lagrangian Particle Tracking Validation or Verification Paper
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#1 |
Senior Member
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Hello All,
I have been trying to find a benchmark paper (Experimental or Numerical) for validation of Lagrangian Particle Tracking in OpenFOAM. I have two general questions, 1) Lots of papers out there, have discussed about the particle concentration in a field and not the particle counts. As you know particle concentration is taken into consideration when one solves the eulerian model of the particles (Mass transport). However I don't know how to compare my lagrangian results with those of eulerian ones. How can I convert my lagrangian data (including particles position, size, etc) into eulerian concentration? 2) Is there any trustable lagrangian benchmark paper which I can use for validation!?
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Learn OpenFOAM in Persian SFO (StarCCM+ FLUENT OpenFOAM) Project Team Member Complex Heat & Flow Simulation Research Group If you can't explain it simply, you don't understand it well enough. "Richard Feynman" |
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May 8, 2015, 17:08 |
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#2 |
Senior Member
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Well I found the answer to the first question. This can be done easily using swak4Foam. Just need to add massFraction function of swak4Foam into the controlDict:
massFractionKinematic { type expressionField; autowrite true; expression "lcsMassFraction(ParticleCloud)"; outputControl timeStep; outputInterval 1; fieldName ParticleCloudMassFraction; }
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Learn OpenFOAM in Persian SFO (StarCCM+ FLUENT OpenFOAM) Project Team Member Complex Heat & Flow Simulation Research Group If you can't explain it simply, you don't understand it well enough. "Richard Feynman" |
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May 11, 2015, 06:11 |
Sample lagrangian particle(droplet) velocity
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#3 |
New Member
Tariq Ahmed
Join Date: Jan 2015
Posts: 13
Rep Power: 11 |
Hi,
I would like to know how to sample the droplet velocities and size using swak4foam as I want to postprocess using Matlab Tariq |
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May 11, 2015, 15:28 |
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#4 | |
Senior Member
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Quote:
Experts can help you in this field. Hope you the best.
__________________
Learn OpenFOAM in Persian SFO (StarCCM+ FLUENT OpenFOAM) Project Team Member Complex Heat & Flow Simulation Research Group If you can't explain it simply, you don't understand it well enough. "Richard Feynman" |
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May 12, 2015, 06:00 |
Lagrangian data
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#5 |
New Member
Tariq Ahmed
Join Date: Jan 2015
Posts: 13
Rep Power: 11 |
Thanks for replying. So do u know how to convert lagrangian particle velocity into eularian one like u have done for particle mass fraction? And also when I used the above code in control dict, my solver didnt create a postprocessing folder for saving the mass fraction values. i am using sprayfoam solver
tariq |
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June 18, 2015, 16:03 |
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#6 |
Senior Member
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Hi,
Sorry for the late response. Well I am not sure about the first question but about the second, There will be no postProcessing folder. Actually massFraction will be created individually for each time step. You can see massFraction as a new parameter in paraview while post-Processsing.
__________________
Learn OpenFOAM in Persian SFO (StarCCM+ FLUENT OpenFOAM) Project Team Member Complex Heat & Flow Simulation Research Group If you can't explain it simply, you don't understand it well enough. "Richard Feynman" |
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May 23, 2016, 01:47 |
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#7 | |
Member
Ping Chang
Join Date: Feb 2016
Location: Perth
Posts: 93
Rep Power: 10 |
Quote:
I met the same question as urs. I wanna calculate the mass concentration of particles(kg/m3) Can I use massFractionKinematic to achieve my goal. If I can ,could you plz post ur code in ur controlDic, thx. |
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