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Plot particle density

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Hello everyone,
As attached, it is my particle tracing result, but the color expression seems to be the particles’ velocity. Does anyone know how to plot the particle density as the color expression? I didn't find this kind of expression in “Replace Expression”.

Thank you very much in advance!


2 Replies Last Post 19 févr. 2016, 11:57 UTC−5
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Hello Lu Guo

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Posted: 9 years ago 19 févr. 2016, 07:26 UTC−5
I am also interested in that. Defined a Wall in front of my release as particle counter. Now it would be nice to plot the geometry with an overlay of particle density.

thanks for any comments
I am also interested in that. Defined a Wall in front of my release as particle counter. Now it would be nice to plot the geometry with an overlay of particle density. thanks for any comments

Daniel Smith COMSOL Employee

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Posted: 9 years ago 19 févr. 2016, 11:57 UTC−5
Hi Christoph, the number of particles per unit volume can be computed using an Accumulator. See my colleague's blog for some more information:
www.comsol.com/blogs/new-accumulators-boost-particle-ray-tracing-functionality/

My recent blog on counting particles may also be of interest:
www.comsol.com/blogs/different-ways-to-count-particles-in-comsol-multiphysics/

Dan
Hi Christoph, the number of particles per unit volume can be computed using an Accumulator. See my colleague's blog for some more information: https://www.comsol.com/blogs/new-accumulators-boost-particle-ray-tracing-functionality/ My recent blog on counting particles may also be of interest: https://www.comsol.com/blogs/different-ways-to-count-particles-in-comsol-multiphysics/ Dan

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