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Particle tracks for already calculated transient velocity field

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Old   December 7, 2013, 23:31
Default Particle tracks for already calculated transient velocity field
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Pete
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Hello everyone,

I have already obtained a transient solution of the velocity field (multiple data files at fixed time intervals). I now want to calculate particle tracks (10,000 particles) at these time instances. The only way that I know of requires me to run DPM model and solve the flow field together. Is there a way I do not have to do the calculation for the flow field and just calculate particle tracks? I know it is possible for steady state results. My problem does not involve two-way coupling. Any answers/suggestions will be highly appreciated. Thank you
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Old   December 8, 2013, 13:06
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if you assume that there is no influence of your flow field and only one--way couling rules then you may read case and dat file of the transient and carry out the dpm tracks in one-way manner in post-processing in fluent or in other CFD-Post
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Old   December 10, 2013, 20:06
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Hi Zaktatir,

That calculation will give me particle tracks for just one transient file (and fluent will consider that solution as a steady state solution), however, I am looking to calculate particle tracks at different instances of time i.e. multiple transient files.

Patrick
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Old   December 12, 2013, 17:47
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read dat of each transient then do the track. There is no another way
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Old   December 12, 2013, 18:11
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I don't believe that will provide me the right answer. May be I will have to do the entire calculation again. Anyways, thank you for your replies.
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Old   December 18, 2013, 19:41
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hi, Zakzatir,
How to do DPM tracks in the one-way coupling manner? Does that mean only to calculate the DPM particle track in post-processing after the transient data file obtained? Or, in other words, I can calculate the multiphase flow filed firstly, then stop and to carry out particle track completely in post-processing fluent? Any reply would be appriciated. Thank you.

Huolong
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Old   December 18, 2013, 19:46
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Hi, Tech Neo,

I think i have the same questions. I am doing the multiphase flow (gas-solid) in transient form in fluent using eulerian-eulerian model. But now I want to look at the exact single particle track in the flow field. My friend told me that i can do the multiphase flow field firstly, then to do the particle track in the post-processing. But he forgot how to do it in details. Has your question been solved? I think my current problems is very similar with yours. Any reply would be very appriciated. Thank you.

Huolong
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Old   December 19, 2013, 12:20
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One-Way Particle Track you do it in post-processing manner under display particle tracks from graphic and animations panel. You have to setup first of all an injection
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