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Messages - tue1984

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Fluent / Re: How can I get particles mean diameters at each cell?
« on: August 29, 2012, 10:35:04 AM »
William: Thanks. Fortunately, I have fixed the compiling issue and it works for me now. One more question though: how do you get the particle volume or volume fraction in every cell? Is it C_VOF(c,t)?

Tue

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Fluent / Re: How can I get particles mean diameters at each cell?
« on: August 29, 2012, 06:17:21 AM »
I figured out an easier way to compute the volume flux which is multiplying the volume fraction with the particle velocity.

William: since I have some problems with compiling udf on my computer at work, I have tried to interpret it but Fluent gave me several errors, e.g., "parse error" for the static variable, "undeclared variables P_CELL", etc. Is there any way to modify your udf so that it can be interpreted? If yes, please let me know how. Thanks.

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Fluent / Re: How can I get particles mean diameters at each cell?
« on: August 28, 2012, 07:48:08 PM »
Thank you! I realize how the particle velocities can be computed now.

Is there any way that we can compute the particle volume flux or particle mass flux per area for every cell face on a given surface and then write that down as a 2D contour plot? This would be very useful because particle volume flux per area is the variable that is normally measured in the experiments with Phase Doppler Particle Analyzer.

Tue

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Fluent / Re: How can I get particles mean diameters at each cell?
« on: August 28, 2012, 04:18:09 PM »
Hi William,

Your UDF is really useful. Could you please extend it so that one can compute the following variables at every cell:

1. All particle velocity components u, v and w.

2. Volume flux (m3/s/m2) which is defined as: particle volume/time interval/cell area

Thank you, Tue.

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